Stainless steel band

stainless steel strip and other materials, like the physical properties including the following three aspects: melting point than the electromagnetic properties of the heat capacity, thermal conductivity and thermal properties of linear expansion coefficient, electrical resistivity, conductivity and permeability, as well as Young's modulus mechanical properties of rigidity coefficient. These properties are generally considered to be the inherent characteristics of the stainless steel material, but will also be affected, such as temperature, degree of processing and the magnetic field strength and the like. Often compared to stainless steel and iron, low thermal conductivity, resistance, and the linear expansion coefficient and permeability properties depending on the crystal structure of the stainless steel itself varies.

Stainless steel cold

There are basically three kinds of cold working process, namely cold drawing process, cold rolling, cold - drawing a joint process. Most foreign stainless steel plate tube of cold-rolled cold - drawing combined process, and mainly cold rolled, cold drawn, supplemented by processing methods.
     Modern cold rolling mill can achieve greatly reduced diameter and greatly reduced the amount of wall thickness, the deformation of 80% complete at the cold rolling mill. Fixed using cold wall, combined with cold call to change the specifications and control diameter, to meet the different varieties and specifications.
     Cold rolling - drawing combined production process advantages are: good quality steel, high precision cold-rolled steel pipe wall thickness and surface quality, cold technology to ensure the accuracy of pipe diameter; cold period is short, reduce intermediate degreasing, heat treatment, necking, straightening and other processes, saving energy, reducing metal consumption; shortage of large-sized tubes can be used raw material to produce small-diameter steel pipe, simplifying the type of raw material specifications.
     Currently, cold-rolled and cold drawn technology and equipment level has been greatly developed world. Cold rolling mill forward speed, long stroke, ring pass, high-precision direction, this mill is characterized by:
     * Use the inertia force and inertia torque balance mechanism vertical mill roundtrips to improve;
     · Using circular hole, rolling mill block length is shorter than the stroke length of 70% to improve the uniformity of rolling deformation, increase the amount of feed;
     · Adopt a long tube, pipe material shortage length can be increased from 12 to 15 meters, can produce long steel pipe, increase mill utilization, effective utilization coefficient of rolling up to 80%;
     · Adopt and best parabolic curved mandrel hole, metal deformation reasonable, tool and die life is high.

304 stainless steel corrosion

Corrosion resistance of 304 stainless steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal organizational structure, play a major role in the chromium.
Chromium has a high chemical stability, can form a passive film on the steel surface, the metal with the outside world to isolate and protect steel from oxidation and increase the corrosion resistance of steel. After the destruction of the passive film, corrosion resistance on the decline.
Can bear a variety of acid etching, such as: oxalic acid, sulfuric acid - iron sulfate, nitrate, nitric acid - hydrofluoric acid, sulfuric acid - copper sulfate, phosphoric acid, formic acid, acetic acid, etc.,
Widely used: chemical, food, pharmaceutical, paper, oil, atomic energy, construction, kitchen utensils, cutlery, vehicles, household appliances. 304 stainless steel plate surface appearance as well as the possibility of using diverse good corrosion resistance, long-term durability than ordinary steel. 304 stainless steel high strength, and therefore the possibility of the use of thin, high temperature oxidation and strength, and therefore resistant to fire, room temperature processing, which is easy to plastic processing
Because the surface treatment is not necessary, so simple, easy maintenance, clean, high-quality finish, good weldability.

Stainless steel mesh

Stainless steel mesh is made of stainless steel as raw material, with the broad language to describe the words: refers to the use of stainless steel wire rod or plate such as stainless steel production from the processing of mesh products.
   There are stainless steel coil in more detail in the following category:
   1, according to the materials can be divided into: SUS302, SUS304, SUS316, SUS304L, SUS316L, SUS310, SUS310s, SUS430 and other grades.
   2, from the production process can be divided into: weaving, Welding, stretching, punching, etc; which can be woven into plain weave, twill weave, Dutch plain weave, twill weave Netherlands, reverse Dutch weaving and other crafts .
   3, according to the different forms of technology and materials can be divided into: stainless steel wire square mesh, stainless steel I-type mesh, stainless steel welded wire mesh, stainless steel mesh, stainless steel perforated metal mesh and other varieties.
   Uses: Widely used in stainless steel mesh screen filter and protective decorative, scope throughout the mining, petroleum, chemical, food, medicine, machinery manufacturing, construction decoration, electronics, aerospace and other industries.
   Features:
   1, room temperature processing, plastic processing that is easy to diversify the possibility of using a stainless steel mesh;
   2, finish, surface treatment is not necessary, convenient and simple to maintain.
   3, high temperature oxidation, 304 stainless steel mesh withstand temperatures of 800 degrees Celsius, 310S stainless steel mesh withstand temperatures up to 1150 degrees Celsius;
   4, good acid and alkali resistance, corrosion performance;
   5, high strength, tensile, toughness and wear resistance and durability;

Stainless tightness

How to maintain the purity of the protective gas furnace is a key issue. In this regard, stainless steel magnetic sealing, and it will not happen as electric furnace material contamination protective atmosphere, providing a more pristine environment of space. Additionally, vertical furnace strip entrance are located lowermost portion of the furnace, the furnace pressure is stable, as compared with a horizontal furnace, air enters the danger is much smaller. However Importers sealed box furnace for bright annealing, the strip conveying section, the dancer roller and the guide roller roof box should ensure a few parts per million (ppM level) sealing requirements, so that oxygen, water vapor can not enter the shielding gas can not escape.
Vertical bright annealing furnace construction should pay attention to issues related to
In the long-term high temperature will creep elongation. Structurally the muffle cover hanging on the roof, in a suspended state, cover the lower part of the water ring seal, not fixed, allowing a certain amount of creep. Creep accumulated to a certain amount, remove seal, with a special plasma cutter to cut away along the lower section of the hood muffle. About half cut once. Cutting operating requirements are relatively high. Its special equipment, operating space and structure, operational reliability should pay full attention.

The purpose of the process of stainless steel bright annealing

430 stainless steel magnetic bright annealing furnace is mainly used to finished product heat in the atmosphere of the processing of stainless steel. When using the performance requirements are not at the same time, on the microstructure of bright annealing after the requirements are different, the process of bright heat treatment are also different.
Heat treatment process of typical 430 stainless steel suppliers magnetic is a solid solution treatment. In the heating process of the carbide dissolve in austenite, heated to 1050 ~ 1150 ℃, the appropriate holding a short period of time, the carbide all dissolved in austenite, and then rapidly cooled to 350 ℃, obtain supersaturated solid solution is uniform one-way austenite. The heat treatment process is the key to rapid cooling, cooling rate reached 55 ℃ /s, fast through the carbide solid solution after precipitation temperature region (550 ～ 850 ℃). Holding time should be as short as possible, otherwise the coarse grain, effects of surface finish.

The scope of application of iron 1.4016 steel 2R and physical phenomena
Iron 1.4016 steel 2R in the heating process the carbide dissolve into austenite, heated to 1050 to 1150 DEG C, the effect of a short period of time, the carbide all dissolved in austenite, and then rapidly cooled to 350 DEG C, to obtain supersaturated solid solution is uniform one-way austenitic organization. The heat treatment process is the key to rapid cooling, the cooling rate reaches 55 DEG C requirements of /s, iron 1.4016 steel 2R fast through the carbide solid solution after precipitation temperature zone (550 to 850 DEG C). Holding time should be as short as possible, otherwise the coarse grain, surface finish.

Stainless steel performance specifications

Hot plate series: materials are 310S (0Cr25Ni20 or 1Cr25Ni20Si2), 309S (0Cr23Ni13 or 1Cr20Ni14Si2), 2205 (S31803) duplex stainless steel, 253MA (S31805) heat-resistant steel, thickness 0.4mm-60.0mm
Chemical board series: materials are 316L (00Cr17Ni12Mo2 American Standard and 00Cr17Ni14Mo2 GB), 316Ti, 321 (1Cr18Ni9Ti or 0Cr18Ni10Ti), 304L (00Cr18Ni9), 304 (0Cr18Ni9), 304J1 (304 copper material), 202 (1Cr18Mn8Ni5N), 201 (1Cr17Mn6Ni5N), etc., the thickness of 0.4mm-60.0mm plate series: Specifications 3.0mm-30.0mm * 1500/1800 * 2000 * 6000 or 6000 or more. Normal tolerances or small negative balance campaign materials, 3.0mm-14.0mm length can be cold-rolled sheet series: Specifications 0.4-6.0mm * 1219/1000 * 1500 * 2438/2000 / not length, length can be set to open 304 is a general purpose of stainless steel plate, it is widely used to produce good overall performance requirements (corrosion resistance and formability) of equipment and parts.
301 stainless steel suppliers in the deformation showing a significant hardening, are used for a variety of applications require a higher intensity.
302 stainless steel is essentially a higher carbon content of 304 stainless steel variant, it may be obtained by cold-rolled high strength.
302B is a high silicon content of stainless steel, it has a high temperature oxidation resistance.
303 and 303Se are cutting stainless steel containing sulfur and selenium, the main requirements for cutting and table Guanghao high occasions. 303Se also necessary for the production of stainless steel hot forging of parts, because in such conditions, this steel has good hot workability.
304L is a low-carbon 304 stainless steel variant, the need for welding applications. Lower carbon content makes it close to the weld heat affected zone to minimize carbide precipitation, and carbide precipitation may lead to intergranular corrosion of stainless steel in some environments (welding erosion).
304N is a nitrogen-containing stainless steel, add nitrogen to increase the strength of steel.
305 and 384 stainless steel with high nickel, the hardening rate is low, suitable for cold forming requires a variety of occasions.

Galvanized steel oxidation process introduced

Galvanized 409 stainless steel plate oxidation process introduced
(1) black handle. By some special treatment, as galvanized steel 1Cr13,3Cr13,4Cr13 on black nickel and zinc plating layer blackened.
     ① black nickel plating solution composition and soil conditions Arts
     Molybdate press [(NH4) 6Mo7O24.4H20] 30 ~ 40g / L
     Nickel sulfate (NiS04.7H2O) 120 ~ 150g / L
     Boric acid (H3BO4) 20 ~ 25g / L
     a pH value of 4.5 5.5
     20 to 25 ℃ temperature
     Cathode current density 0.15 ~ 0.3A / dm2
     15 hours a 20min
     ② black zinc coating solution composition and process conditions
     Molybdate press [(NH4) 6Mo7O24.4H20] 300g / L
     Aqueous ammonia (NH3 · H2O) (d = 0.89) 600mL / L
     Temperature 30 ~ 40 ℃
     Time 10min
     (2) Galvanized - black nickel plating process. Electrolytic degreasing → washing → weak corrosive (sulfuric acid 110mL / L, thiourea 10g / L, wash clean right amount) → washing → galvanized [NH4Cl220 ~ 280g / L, ZnCl230 ~ 35g / L, H3BO325 ~ 30g / L, polyethylene diol 1 ~ 2g / L, thiourea 1 ~ 2g / L, detergent 0.5 ~ 1mL / L, pH5.6 ~ 6.0, temperature 10 ~ 35 ℃, the cathode current density (Dk) 1 ~ 1.5A / dm2, the time 30s] → washing → retreat zinc (ZnCl250g / L, HCl50mL / L, room temperature, and the time to do back up) → washing → weak corrosion (ZnCl250g / L, HCl50mL / L, room temperature, and the time to do back up) → washing → galvanized
     (Time 5min) → → washing → black nickel plated closed treatment (CrO32.5 ~ 5g / L, pH1.5 ~ 5, temperature 10 ~ 30 ℃, time 10 ~ 20s) → washing → dry (less than 500 ℃)
     (3) galvanized black treatment process. Pre-galvanized and pre-treatment to black nickel plating process → galvanizing same (time 1.0 ~ 15min) → washing → → washing → black zinc coating and drying.

Stainless steel sheet during the drawing when what features

Stainless steel products for its exquisite appearance, excellent corrosion resistance, high temperature oxidation resistance and high temperature strength and drew people of all ages, more and more widely used for decoration, light industry, civilian hardware, kitchen equipment and utensils, etc. . Due to the high quality requirements of the appearance of these products in the whole process of the product, to ensure that the product is not high surface brightness scratches and abrasions very difficult indeed, especially since 304 stainless steel sheet sheet drawing characteristics brought Die Selection , heat treatment, machining and process lubrication problems directly affecting product quality gold, production, costs and die life.

     Features stainless steel sheet drawing

     Due to the high yield point of stainless steel 304ba, high hardness, work hardening effect is remarkable, stainless steel sheet were drawing the following features:
     1) due to poor thermal conductivity than ordinary low-carbon steel, resulting in deformation force required;
     2) stainless steel sheet drawing, the severe plastic deformation hardening, easy to wrinkle when drawing sheet, full BHF want greater;
     3) sheet metal bending in the rebound and reverse pull furrow mold caused by bending at the corner, and usually forms a depression in the side wall of distortion product makes high dimensional accuracy and shape requirements of the product to achieve the required increase in plastic surgery procedures.
     4) stainless steel sheet bonded tumor phenomenon drawing process prone.
     From the microscopic point of view, the key panel material rough mold surfaces are uneven, due to the process of drawing BHF larger load raised by the local unit to withstand a lot of pressure parts; because between the sheet and the mold to produce relative motion and the plastic deformation of sheet metal production of heat, making the lubricating film viscosity decreases, lower intensity; protruding parts of the sheet in a high pressure, high temperature instantaneously by shearing motion, the lubricant film rupture, sheet metal in direct contact with the mold, sheet metal parts to be scraped off the mold raised bumps become part of people die in front of the debris pile protruding parts, such as the temperature is high enough so that the pieces soften, melt, dry welding in the mold to form an adhesive tumor. Bond and form a tumor is difficult to come off, and the more the bigger stick, causing deep drawing steel sheet products severe scratches left on the surface. In addition, the drawing speed, sheet deformed child size also plays an important role on the bond neoplasia. How to avoid drawing die bonding tumor formation, improve the surface quality of drawing parts are stainless steel sheet drawing technical problems lies.

     2 solutions

     Deep drawing steel sheet bonding occurs during tumor has been plagued by production site, a great deal of trouble to producers, but due to the bonding neoplasia and other issues related to tribology, influenced by many factors. Currently, we can only propose measures from different angles to prevent tumor formation and reduce adhesion.

     2.1 working part mold material selection and heat treatment

     For bond tumor problem, choose a stainless steel mold material Chak relations, two points should be combined according to the pro stainless steel sheet metal and mold material: Choose one anti-adhesion strength, and second mold material wear and friction reduction. In general, the metal lattice type, lattice pitch, electron density, electrochemical properties interlinked metal, which attract each other, dissolving ability, easy to adhere together, the results of the friction coefficient becomes large. Cr, Ni and Fe miscibility big, so when using steel deep drawing, bonding tumors more susceptible to the phenomenon. Practice has proved that: use aluminum bronze, aluminum bronze hard sticking better; using Steel bonded tungsten carbide manufacturing die than raise with Cr12Mov tufftride manufacturing die life several times, and non-stick mode; if using code 3054 alloy cast iron, just mold surface flame hardening, the mold surface does not appear bond tumor. Also in vulnerable parts of the mold can be used carbide inserts, it has excellent compression performance, superior wear resistance and long-lasting love of the surface roughness and dimensional control. However, due to the price, the production used less.
 
     Surface processing mold work portion 2.2

     Stainless steel drawing die surface quality requirements are high. Low surface roughness may serve to improve the anti-friction and anti-adhesion effect so. After drawing die during the grinding process, the more important is to eliminate machining marks. In the mold is often overlooked grinding and polishing processes. It should be noted. Throughout the mold process, polishing workload should account for one third, because the appearance of quality stainless steel products depends largely on the mold polishing techniques. Reduce mold surface roughness, a corresponding reduction in the number of grinding mold, mold life correspondingly improved.
     If the mold surface polishing enough, coupled with deep drawing steel sheet bonded easily cause tumor characteristics, thus drawing out of the product scratches serious. And that the scratches on the product with polished to solve time-consuming and reach results. Therefore, we should step up and down in the mold polishing great effort, only the mold surface machining accuracy is improved in order to reduce scratches, mold repair mold life can be greatly improved. In recent years, there have been a variety of new techniques of polishing and polishing tools, the development of ultrasound, electrolytic polishing, abrasive blasting, honing extrusion and other new technology, new equipment. According to information on CrWMo, 3Cr12W8V, Cr12 mold test three materials studied electrochemical polishing, polishing prove that only 5-10 minutes from the mold cavity surface roughness of the original Ra3.2-Ra1.6 down to Ra0.4-RaO.2 basis. While by electrochemical polishing may improve the surface hardness to improve wear resistance. Again, ultrasonic polishing machine can be used by soft nitriding treatment cavity fine polishing, it is easy to avoid the disadvantages of manual polishing damage nitride film. For new polishing techniques we should take active steps to use and summary.
     Stainless steel drawing die surface quality requirements are high. Low surface roughness may serve to improve the anti-friction and anti-adhesion effect so. After drawing die during the grinding process, the more important is to eliminate machining marks. In the mold is often overlooked grinding and polishing processes. It should be noted. Throughout the mold process, polishing workload should account for one third, because the appearance of quality stainless steel products depends largely on the mold polishing techniques. Reduce mold surface roughness, a corresponding reduction in the number of grinding mold, mold life correspondingly improved.
     If the mold surface polishing enough, coupled with deep drawing steel sheet bonded easily cause tumor characteristics, thus drawing out of the product scratches serious. And that the scratches on the product with polished to solve time-consuming and reach results. Therefore, we should step up and down in the mold polishing great effort, only the mold surface machining accuracy is improved in order to reduce scratches, mold repair mold life can be greatly improved. In recent years, there have been a variety of new techniques of polishing and polishing tools, the development of ultrasound, electrolytic polishing, abrasive blasting, honing extrusion and other new technology, new equipment. According to information on CrWMo, 3Cr12W8V, Cr12 mold test three materials studied electrochemical polishing, polishing prove that only 5-10 minutes from the mold cavity surface roughness of the original Ra3.2-Ra1.6 down to Ra0.4-RaO.2 basis. While by electrochemical polishing may improve the surface hardness to improve wear resistance. Again, ultrasonic polishing machine can be used by soft nitriding treatment cavity fine polishing, it is easy to avoid the disadvantages of manual polishing damage nitride film. For new polishing techniques we should take active steps to use and summary.

How to identify stainless steel products?

Q: Many cookware is now appearing on the market, even though the sign is written in stainless steel suppliers, is actually a "stainless steel iron" products. How should identify the 430 stainless steel plate and the "stainless steel iron" supplies it? A: 1 from the identification tag: Many stainless steel supplies are playing surface has stamp, for example: the words, short in front of the number 13 ~ 0,18 ~ 8 indicates that the product, such as chromium content, short behind the numbers indicate the amount of nickel-containing products . Like 13 to 0 indicates it does not contain nickel chromium, commonly known as "stainless iron"; 8 and 18 to indicate that the product also contains chromium nickel, this isstainless steel plate. 2. From the sound judgment: Tap stainless steel or "stainless iron" products can also be used as a method to judge. 3. Use a permanent magnet to attract: the real attraction of 430 stainless steel magnetic is not magnetic, "stainless steel iron," you can be attracted to a magnet. Although there are differences "stainless iron" and stainless nature, but in terms of its anti-corrosion ability, are much better than wrought iron and cast iron cookware.

Japan's Kobe Steel will produce ultra-high strength steel in China

According to "Japanese Economic News" reported on September 9, Kobe Steel will reach twice the current product ultralight stainless steel magnetic production in China. In order to achieve one-stop production in China locally, Kobe Steel's joint venture company will provide technology, drive down costs. Investment will amount to about 30 billion yen (about 1.73 billion yuan), as early as 2016 to begin production. China as the world's largest auto market, increasingly stringent environmental regulations.stainless steel sheets, a move designed to meet the automotive manufacturers to reduce vehicle weight to improve fuel efficiency performance requirements.

Kobe Steel will be its new plant in Liaoning Province, Anshan Iron and Steel Group and the joint venture's launch "ultra high strength" steel plate production equipment, the strength of "ultra-high strength" steel is nearly 2 times the normal high-strength steel. The intensity produced by the ultra-high strength steel, Kobe Steel is 980Mpa (M = 100 million) level and above, is the main vehicle of high strength steel (590Mpa grade) nearly two-fold.

Kobe Steel will invest about 30 billion yen rapid cooling can be introduced advanced equipment, precise control of steel structure. And to provide for a new plant with a processing base plate Anshan Group provides independent research and production techniques, in order to build in China's system of one-stop production locally. Previously, the car has been used by the Japanese steel exports to China. Kobe Steel will be links from the base plate of the one-stop-start local production by improving cost competitiveness.

Kobe Steel will 980Mpa grade steel as the originator, the further production of higher strength steel in the future 1180Mpa level.

Contribute to the body weight of the ultra-high-strength steel has been applied to part of the body frame and other car parts. However, compared with ordinary steel, higher prices, even in Japan, using the ratio is also only about 10% of the skeleton as a whole. Current demand in China is also minimal.

Reported that the affected air pollution problems, the Chinese government put forward to strengthen the principle of environmental restrictions. To improve fuel efficiency performance, lightweight body indispensable, so in addition to Japanese and European companies are expected to China's automobile manufacturers will also move to higher field strength steel.

magnetic stainless steel sheets performance overall presentation

magnetic stainless steel sheets have a stainless steel high temperature, acid and alkali resistance, corrosion resistance, abrasion characteristics. It uses three types of mesh are not the same, the first two categories are generally used for load-bearing, protection, fencing, magnetic stainless steel sheets decorative and other purposes, stainless steel filter sheets are generally used for acid-base environment screening and filtration. magnetic stainless steel sheets, is reported in the current portion of Origin thick material to appear a little more scarce, many more than 2.0 specifications are only sporadic inventory, mainly because some of the thin compound tolerances, specifications very good resource widely fancied traders at the time of delivery have preferences, resulting in an imbalance Bohou material resources.

magnetic stainless steel using the Solution

magnetic stainless steel pump will be able to become a leader in the vanguard for the development of China's stainless steel pump industry contribute China stainless steel mesh editing informed. magnetic stainless steel fasteners investigation, saying that magnetic stainless steel  can not prove that dumping products on the EU market, the Thai stainless steel fastener manufacturers exporting to the European market brighter future. Organizational performance and quality super ferrite magnetic stainless steel has an extremely important role. Series of studies by super ferrite stainless steel billet quality and performance, and determine niobium, stainless steel sheets titanium, super ferrite stainless steel in the mode of occurrence and limit the content, as well as niobium, titanium, carbon, nitrogen, the best ratio, magnetic stainless steel can provide an effective solution stainless steel plate to the problem and process optimization slab quality ferritic stainless steel production process faces.

mechanical properties of magnetic stainless introduction

Melting point, specific heat capacity, thermal conductivity and thermal expansion coefficient of the thermodynamic properties of the electromagnetic properties, resistivity, conductivity and permeability, magnetic stainless as well as Young's modulus, stiffness coefficient and other mechanical properties. These properties are generally considered to be the inherent characteristics of the stainless steel material, but it can also be affected by factors such as temperature, degree of processing and the magnetic magnetic stainless steel sheets field strength and the like. Typically magnetic stainless, low thermal conductivity as compared with pure iron, resistance, and the linear expansion coefficient and the permeability and other properties depending on the crystal structure of the stainless steel itself varies. magnetic stainless corrosive chemical in the air or in a high-alloy steel to resist corrosion, magnetic stainless is a beautiful surface and 304 stainless steel sheet good corrosion resistance, without going through the plated surface treatment, and play inherent in the surface properties of stainless steel, used in wide range of steel, often referred to as stainless steel.

Material properties of magnetic stainless steel sheets and presentation

304 stainless steel at room temperature so that the yield and tensile strength has improved greatly and there is magnetic stainless steel a certain plasticity and toughness decreased, and TiC added, the greater the intensity of increase. Wear during magnetic stainless steel sheets subjected to load and play a role in generating film, which can effectively improve the wear resistance of steel reinforced TiC, TiC and added more wear better. By using the newly developed super-hard base material particles, magnetic stainlesssteel but also improves the magnetic stainless steel sheets grooving in resistance to chipping resistance and fracture resistance. By coating the base material with a new combination, even if a cutting process of cutting the workpiece near the center drop can achieve long life and stable processing.

magnetic stainless steel processing technology

Clearly, the production of finished pipes for cold extrusion method and provide mother pipe material, is currently abroad thermal processing magnetic stainless steel production widely used as a magnetic stainless more economical approach. magnetic stainless steel with high-speed, automated, large-tonnage extrusion machine uses, as well as glass lubricants, non-oxidizing heating, high strength and toughness for the development of molds and other heat-related technologies, with the production of stainless steel seamless hot extrusion method in particular the production of hard deformed steel pipes, high alloy steel pipe has been rapid development. Magnetic stainless steel sheets  a single two-roll rotary piercing mother pipe material for cold provide a method has basically not adopted abroad. magnetic stainless steel tend to be mainly using cold, cold drawn, supplemented by the joint production process, cold rolling machine, drawing machine to high-speed, high-precision, Stainless Steel Sheets long-range line, multi-line direction of 50 to 80% stainless steel tube through cold a finished product. Therefore, the development of cold process equipment given more attention.

magnetic stainless's sustainable development strategy

magnetic stainless TISCO postdoctoral research completed by the "niobium, titanium impact on the super ferrite stainless steel billet quality and performance" issues through the assessment. magnetic stainless steel sheet  experts believe that this research has high academic and application value, at the international advanced level. Research on the subject, not only can effectively research on scientific research, but also for the development of high-quality, high-performance, low-cost ultra-pure ferritic stainless steel to provide adequate theoretical basis, create considerable market and economic value. magnetic stainlesssteel  super ferrite magnetic stainless steel due to carbon, nitrogen content is very low, compared with ordinary ferritic stainless steel has superior corrosion resistance, toughness and weldability, nearly half a century has been the strong development and wide application. In the 21st century, put forward the strategy of sustainable development, so that the development of new materials must be environmentally friendly as a prerequisite. The ultra-pure ferritic Stainless Steel Sheets  is an ideal resource-saving and environmentally friendly materials, magnetic stainless allergic to humans without nickel metal elements in the automotive exhaust system ferritic stainless steel, especially ferritic stainless steel containing niobium good resistance corrosion resistance, making it a good selection instead of cast iron.

Magnetic stainless steel sheets classification and organization structure of the

Magnetic stainless steel sheets atomic magnetic moment offset each other without closed magnetic moment. But when subjected to external magnetic field, the original in the thermal agitation mixed arrangement of the atomic magnetic moment is also subject to a magnetic stainless steel sheets  field to make the magnetic field aligned and hot trend with the anarchy Sao action arrangement, so the effect of magnetic stainless steel sheets is the total magnetic component in certain external magnetic field direction. Thus the magnetic susceptibility (magnetization and the magnetic field strength) become positive, but the value is also very small, magnetic stainlesssteel generally paramagnetic magnetic material rate is about one hundred thousand points, and increases with decreasing temperature. Magnetic stainless steel sheets is commonly used as a most decorative tube plate of stainless steel is Austenitic 304 material, generally speaking is stainless steelp late suppliers  or weakly magnetic, but caused by smelting chemical composition fluctuation or the processing status of different magnetic properties may also appear, but this can not be considered to be counterfeit or substandard.

The physical phenomenon of magnetic stainless steel and organization structure

Magnetic stainless steel is mainly used for high temperature applications, high temperature application magnetic stainless steel  with strong anti sensitization, to prevent corrosion in the low temperature grain. High strength, corrosion resistance and bending performance, excellent toughness of welding heat affected zone of high strength stainless steel plate. Reuse containing Mo, B and so on, can significantly improve the performance of the welding part stamping process. Mechanical yield strength, Magnetic stainless steel sheets tensile strength, elongation and hardness of magnetic stainless steel to meet the requirements of steel plate must be after annealing, solid solution treatment, aging treatment and other heat treatment before delivery. The composition of the alloy magnetic stainless steel corrosion depends primarily on its (chrome, nickel, titanium, silicon and aluminum) and internal organizational structure, played a major role in the CR. Chromium has the very high chemical stability, can form a passivation film on the steel surface, tainless Steel Sheets the metal and isolated, protect the steel by oxidation, enhance the steel corrosion resistance. Passivation membrane destruction, the corrosion resistance will decline.

Magnetic stainless why magnetic

Many customers often think that the magnet adsorption of stainless steel material, verify the authenticity of the advantages and disadvantages, don't smoke non-magnetic, that is good, magnetic stainless steel sheets  goods at a fair price; the suction magnetic, that is fake fake. In fact, this is an extremely one-sided, not practical error method of identification, I hope the following contents will be helpful to you! Many kinds of stainless steel, room temperature according to the organizational structure can be divided into several categories: 1 austenitic: such as 304, 321, 316, 310; 2 martensite or ferrite such as: 430, 420, 410; austenite is non-magnetic or weak magnetic properties, martensite or ferrite is a magnetic. Magnetic stainless is commonly used as a decorative stainless steel  pipe, stainless steel plate is most of austenitic stainless steel 304 material, generally speaking is non-magnetic or weakly magnetic, but caused by smelting chemical composition fluctuation or the processing status of different magnetic stainlesssteel  properties may also appear, but it cannot be considered to take card or unqualified, what reason is this? Austenite is the above-mentioned non-magnetic or weakly magnetic, and martensite or ferrite is a magnetic, because smelting when segregation or improper heat treatment, will cause a small amount of martensite austenite stainless steel in 304 body or ferrite. In this way, will magnetic stainless with a weak magnetic. In addition, magnetic stainless after cold working, organizational structure will be transformed to martensite, the greater the degree of cold deformation, the more the martensite transformation, the greater the magnetic properties of steel. Like a lot of the strip, the production of phi 103 tube, no obvious induction, the production of pipe. Because of cold bending deformation of large stainless steelp late suppliers  is obvious, producing rectangular tube due to deformation than the cylinder, especially the angle of deformation, more intense magnetic more obvious. Magnetic to completely eliminate the causes of 304 steel, can be opened through the high temperature solution treatment to restore the stability of austenite, thereby eliminating magnetic. In particular, magnetic because it causes 304 stainless steel, and other materials such as stainless steel, carbon steel, magnetic 430 is not the same level, that is to say the magnetic steel 304 always showed a weak magnetic.

The design concept of magnetic stainless steel sheets

Magnetic stainless steel sheets, completely changed the traditional impression of the iron and steel enterprises. "The cold rolling plant to gardens, this is not an exaggeration." magnetic stainless steel sheets  of environmental protection way thinking decided "domestic first established the cause of Environmental Protection Industry Development Department of the iron and steel enterprises, according to the foreign advanced experience to integrate all environmental management department. Magnetic stainless steel sheets from the concept of environmental protection work, to improve pollution control from the first to the development of the stainless steel  industry height. Shougang environmental protection industrialization is the idea of comprehensive utilization of Shougang internal environmental resources." The cause of environmental protection industry development department chief engineer Liao Hongqiang introduced to the "Chinese stainless steel net" reporter. The enterprises have to implement circular economy projects energy-saving emission reduction as a necessary condition for the development of enterprises. As development of combination of iron and steel industry in Hebei area of Qian'an, magnetic stainless steel sheets built the first national metallurgical enterprises circular economy industrial park, focused on building a stainless steelp late suppliers  slag treatment, tail slag brick, primary purification, blast furnace slag powder of steel slag, dust and mud concentrated treatment of resource utilization, comprehensive utilization of waste oil such as project 11, caused great concern in the domestic industry, the market promotion of independent R & D technology has played an exemplary role greatly.

The development of magnetic stainless steel

The stainless steel mesh editing was informed that at present, the magnetic stainless steel has reached 76%, the pipeline Water Leakage rate from the original 14.7% to the current 7.5%. Osaka magnetic stainless steel  from the earthquake, stainless steel storage tank intact. Recently, developed a corrugated pipe joint, the stainless steel water pipeline construction cost reduced by 20%, the total cost reduction of 3%, Magnetic stainless steel sheets  the cost of repair 3/4. Magnetic stainless steel industry drives the stainless steel pump under, has a good market prospect, not only is civil stainless steel pump, or the industrial field demand of stainless steel magnetic  industrial pump. Expected stainless steel pump market in China in the past ten years up to 3000000000. By adding green stainless steel materials, stainless steel pump can become China's pump industry leading pioneer, for the development of the stainless steel pump industry in China do what little one can to help the Chinese stainless steel mesh editing was informed.

Magnetic stainless steel technology innovation development

Magnetic stainless steel vigorously implement the quality strategy, relying on scientific and technological progress and technological innovation, efforts to develop varieties, improve quality, optimize the structure, specifications and more than $500000000 in 2010. As a powerful response to severe market situation, determine the target last year increase magnetic stainless steel , and the product quality specifications and efficiency as the key, highlight the enhanced product market competition ability and creation ability. Magnetic stainless steel launched a series of technical research on the development of varieties of different specifications, years to complete the key research topic in technology 24, 4 breakthroughs, 55 varieties of quality development project implementation efficiency targets. The successful development of micro oxidation annealing board, to fill the domestic blank. Screw thread steel, cold rolled steel, ship to maintain the physical quality of metallurgical products, "Gold Award" and "excellent magnetic stainlesssteel  products" title for hot-rolled steel products such as 6, "heat generation of cold rolled product development and application of" project won the national staff of outstanding technical innovation achievement award, product market recognition, reputation improve. Carry out the "fine management, precise control of" quality crucial action, strengthening production process control and process tracking system, the investigation and rectification constraints quality products 233. Continue to improve the quality control system, establish the quality process control and rapid response mechanism. Close to the customer, improve customer service service, use tracking products, and according to the problems and needs of the user, the timely adjustment of production technology, magnetic stainless steel with good quality and service, fine shape, to win the market. Insist to be with the market oriented, efficient development and production of varieties and specifications, to expand market share, to ensure that the product benefit maximization. The 2 millimeter thin products reached stainless steelp late suppliers  tons, increased 45% over the previous year. Production of 1.8 mm specifications of products based on the stability, with 1.6 mm specifications of products, stable production capacity. Cold rolled galvanized plate system, oxidation annealing, deep drawing board and other high-end products output rose 240%, and the annual export 570000 tons, covering 48 countries around the world, the 159 area, accounting for 1/10 of total exports of domestic similar products. Realization of long products quality long period stability, screw steel negative differential stable rate reaches above 93.5%, hard line steel wire rope products to enter the high-end domain.

The whole magnetic stainless introduction

The so-called magnetic stainless just referred to, and you say with and without an external magnetic field is not saying, magnetic stainless steel sheet  say is can be a magnet for! If the judge quality stainless steel to this method, you must suffer the! The reason can be magnetic stainless as 201, 430 of the materials are:, high carbon content, the magnetic stainless steel sheets  of easy to rust, advantages of high strength, Magnetic stainless such as 202, 304, 316 and other materials containing nickel, chromium, reason: materials, advantages and disadvantages of high cost, poor strength, corrosion resistance is strong, is: easy to stretch.

Magnetic stainless steel sheets the use of advantages and material introduction

Magnetic stainless steel sheets, high temperature resistant, non deformation, environmental protection, support is iron. The so-called magnetic stainless steel sheets just referred to, and magnetic stainless steel sheets  say with and without an external magnetic field is not saying, should say is can be a magnet for! If the judge quality stainless steel to this method, you must suffer the! General can be magnetic attraction such as 201, 430 of the materials are, reason: high carbon content, the magnetic stainlesssteel  of easy to rust, advantages of high strength, but not by magnetic attraction such as 202, 304, 316 and other materials containing nickel, chromium, reason: materials, advantages and disadvantages of poor strength, high price,: - corrosion strong, relatively easy stretch. The difference between magnetic stainless and steel sheets in the use of galvanized bolt According to the experience of our company: The equipment for a long time in moist environment, often Stainless Steel Sheets  flushing, often be caught in the rain. Magnetic stainless steel sheets so exposed all use stainless steel, if used galvanized bolt, time is not more than half a year, never rust.

Magnetic stainless steel maintenance layer should be able to request

Magnetic stainless steel screw surface anti-corrosion treatment refers to the use of various methods applied to maintain layer on the metal surface, its role is to isolate the metal with the magnetic stainless steel sheet  environment, to reduce the corrosion process, or reduce the corrosive medium in contact with the metal surface, and to avoid or reduce the corrosion of the. Maintenance layer should be able to fit the request: 1, corrosion resistance, wear resistance, high hardness, 2, structure tight, well, small pores. 3, with the base metal, separation of strong adhesive force. 4, the average spread and a certain thickness. Magnetic stainless steel is divided into metal coating and two kinds of non metal coating, metal coating is refers to the metal Stainless Steel Sheets  with corrosion resistance of strong metal or alloy in easy corrosion form maintenance layer, the coating and coating. Metal coating method and a lot of different varieties, of which the most common is the electroplating method, followed by the molten metal plating (hot dip) and chemical surface treatment. Non metal coating is refers to the use of organic polymer materials such as paint, and inorganic material such as ceramic, a maintenance layer on the metal equipment or parts on the surface, the maintaining layer can be magnetic stainlesssteel  and environmental media complete isolation, avoid the base metal due to contact corrosion in stainless steel standard parts and the formation of corrosion medium.

The application and characteristics of magnetic stainless

Magnetic stainless by adding 2% Mo to stability, T-316 is a "18-8" alloy. In saline water, sulfur or the halide salt than other chromium nickel stainless steel is not easy to be magnetic stainless  by corrosion. Such as chloride is one obvious example of. Characteristics of T-316 the most valuable is that it has a better creep resistance in the rise of the temperature. Other mechanical properties and structural characteristics of the T-304. Magnetic stainless and T-316 are very similar, the Magnetic stainless steel sheets  lies in reducing the amount of carbon, more conducive to knitting and re welding. Use: stainless steel with acid, alkali resistance, wear resistance, heat resistance and other properties, is commonly used in acid, alkali conditions screening (screen) and the filter (filter), for net mud, oil industry, chemical fiber industry as screen mesh, plating industry as pickling nets Because the stainless steel net product variety specification stainless steel sheets  are different, the factory can be customized according to customer request processing.

Features and use the magnetic stainless steel sheets

Features: magnetic stainless steel sheets high temperature resistance, acid resistance, alkali resistance, corrosion resistance, abrasion resistance, impact resistance, stable structure, magnetic stainless steel sheets  wear resistance, low cost, long-term to maintain uniform mesh, beautiful. Usage: magnetic stainless steel sheets can be widely used in mining, sand stone, coal screening and architectural, civil, aquaculture and other industries the isolation and protection. The stainless steel Crimped Wire mesh can be used for acid, alkali environment of the oil, chemical, magnetic stainless steel  industries such as filtering, screening and protection, made basket continuous glass reinforced, various industrial, storage basket handicrafts, kitchen, the refrigerator in the. Magnetic stainless steel sheets is a high quality low carbon steel wire welded row, and then cold plating (electroplating), magnetic stainlesssteel  coating, PVC coated the surface passivation, plastics processing, flat surface, uniform mesh, strong joints, local machine good processability, stability, corrosion, corrosion resistance.

Comparison of the magnetic stainless steel products

Magnetic stainless steel in the petroleum chemical industry, food processing and paper making industry as magnetic stainless  ability and level. The composite of magnetic stainless steel can be used for the manufacture of susceptible to corrosion, high strength products. Magnetic stainless steel is a stainless steel, nickel or other metal surface corrosion resistance and other low cost metal appropriate compound and into products, it is the most ideal choice for magnetic stainless steel. High quality and low price; 304 composite stainless steel series and ordinary magnetism stainless steel  corrosion resistance and durability of holding the same. Products made with it can greatly reduce the manufacturing cost, for example, we processed the 300 series and 1000 series stainless steel carbon steel, surface layer of 300 series stainless steel, and the inner layer is made up of 1000 series of carbon steel and form. Therefore, the product not only low prices, but also has 300 Magnetic stainless steel sheets  and with the same corrosion resistance when in use. High quality low price magnetic stainless steel is the best choice to surface corrosion products production and durable, and is also one of the best stainless steel material selection.

Corrosion of magnetic stainless often

Magnetic stainless no after solid solution treatment. Alloy elements do not dissolve into the matrix, the magnetic stainless steel sheets  alloy content is low, poor anticorrosion performance. Magnetic stainless does not contain titanium and niobium material tends to natural intergranular corrosion. Addition of Ti and Nb, with stable processing, can reduce the intergranular corrosion. A high alloy steel against stainless steel sheet suppliers  in air or chemical corrosion, stainless steel is a beautiful surface and corrosion resistant performance is good, do not have to go through surface treatment such as plating color, and play the inherent surface properties magnetic stainless, a used in many aspects of steel, often called stainless steel.

Magnetic stainless steel sheets. What are the reasons

Magnetic stainless steel sheets materials appear rusting phenomenon, there may be several reasons: there are 1 magnetic stainless steel sheets  ion environment. Chloride ions exist widely, such as salt, sweat, sea water, sea breeze, soil etc.. Magnetic stainless steel sheets in the presence of chloride ions in the environment, corrosion is very fast, even more than ordinary low carbon steel. So the use of stainless steel environmental requirements, but also need regular cleaning, remove dirt, keep clean and dry. (so you can give him a "improper use".) One example: the Stainless steel sheet metal  of an enterprise with an oak container containing a chlorine ion, the container has been used for hundreds of years, the last century ninety's plans to replace, because the oak not enough modern, the leakage due to corrosion of stainless steel container for 16 days after replacement.

Use of magnetic stainless steel

The use of the magnetic stainless steel as long as shown in corrosion resistance, which has certain corrosion resistance to sulfuric acid and nitric acid, because of this characteristic, the magnetic stainless steel sheets  is easily separated from other products. We can use this property to determine the authenticity of products, while the other magnetic stainless steel, such as 400 and 420 steel in sulfuric acid erosion occurs when a stainless steel sheet suppliers  corrosion, and like other non-ferrous metal if sulfuric acid will be corroded, so, because of the characteristics of the magnetic stainless steel is widely application in a lot of places.

The name magnetic stainless description

The stress corrosion resistance is good, the typical non heat treatment hardening ferritic stainless steel. Often used as building decoration, heavy oil burner parts etc.. Magnetic stainless magnetic stainless steel  the processing properties and welding performance. For hot water tank, hot water supply system, sanitary ware, household appliances, and other durable bicycle flywheel. Magnetic stainless, the oxidation of steel above +12% CR can prevent the natural factors, known as the stainless steel, the code number, therefore is also called magnetic stainless. But magnetic stainlesssteel  can't resist oxidation chemical substances in the air caused by, because more and more acidic chemicals in the air, so the magnetic stainless is often used for a period of time, will still result in non natural factors and oxidation (rust) situation.

Use of magnetic stainless steel sheets:

Magnetic stainless steel sheets decoration materials and outdoor advertising column; For anti stress corrosion magnetic stainless steel sheets  of products; electronic products, tableware, bolt, nut, screen and burner etc.. Magnetic stainless steel sheets used for building decoration, a fuel burner parts, household appliance, home appliance parts. In an oxidizing acid solution and especially have good magnetic stainless steel  resistance in nitric acid, it is widely used in chemical equipment manufacturing and production of nitric acid, such as nitric acid absorption tower, heat exchanger, tank, pipe and tank, can also be the production of food, wine and other industrial pipes and tableware.

Magnetic stainless steel material

Magnetic stainless steel has good corrosion resistance and general steel, better thermal magnetic stainless steel sheets  than austenitic, thermal expansion coefficient smaller than the austenitic heat resistant, fatigue, adding stabilized elements Ti, parts of the mechanical properties of the welded seam. Surface level: Magnetic stainless steel has the following kinds of state, state is not the same, dirt and corrosion resistance are not the same. NO.1, 1D, 2D, 2B, N0.4, HL, BA, Mirror, and various other surface treatment. Hangzhou ang Yao metal products Co. Ltd. stainless steel coils special service: 430 stainless steel precision strip, plate shear, longitudinal shearing, stretching (Burr), chamfer, drawing and other special requirements can be customized according to customer requirements. Magnetic stainless steel is a good corrosion resistance and general steel, better thermal conductivity than austenitic, thermal expansion coefficient smaller than the austenitic heat resistant, fatigue, adding stabilized elements Ti, parts of the mechanical properties of the welded seam. For architectural decoration, a fuel burner parts, household appliance, household appliance parts.430F is steel and free cutting performance in 430 steel. For automatic lathe, bolts and nuts,.430LX add Ti or Nb, in the 430 steel decreased the content of C, improve the processing properties and welding performance. For hot water tank, hot water supply system, sanitary ware, household appliances, and other durable bicycle flywheel.

Magnetic stainless steel brushed

magnetic stainless steel is brushed stainless steel surface like filamentous texture, this is just a process of stainless steel. Surface is matte, look carefully there is the slightest stainless steel‍ of textures above, but not out of touch. Wear resistant than stainless steel is generally bright side, it looks more on the grade number. 

Loss of thickness of the drawing process of the stainless steel plate to a certain extent, generally 304 stainless steel coil‍. In addition, because the human body has a relatively strong, especially palm oil and sweat secretion, brushed stainless steel plate is often more obvious touch will leave fingerprints, requiring regular scrubbing.‍

Magnetic stainless steel scrap processing

As a magnetic stainless steel metal industry, the daily material must be divided according to customer requirements of a variety of specifications, then there will be a waste and post-use Stainless steel factory‍ value, if done standardization would affect the production schedule, we can see we slitting process directly linked with the cost of today's talks in this made ​​the following main points of the few against. 

Reuse offcuts control all materials on the machine has a narrow material production department Precision stainless steel‍ consistent configuration, according to long-term needs of existing customers narrow strip material well-off points, making ready the next time the customer orders, customers need to narrow material specifications can be shipped directly, saving time and cost-saving effort.‍

Magnetic stainless steel to keep clean

magnetic stainless steel steering control, in order to reduce customer costs, all the material on the machine, slitting machine 409 stainless steel be checked countertops sanitation, clean machines, materials kept clean to avoid customer complaints imprint, scratches, deformation, distortion phenomenon. 

The cargo control, crane 430 grade stainless steel‍ once all the materials, other materials have to pay attention to the collision, to avoid collision deformation, scratches, personnel security, both sides of the sling is solid, in the course of the operation must be two third-pretentious, other relevant personnel away from the crane in order to avoid unnecessary accidents.

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Why magnetism rusting stainless steel

People often think that magnets magnetic stainless material and verify the authenticity of their advantages and disadvantages, do not 304 ss sheet‍ no magnetic, considered good, genuine; absorption is magnetic, so thought to be counterfeit, fake. In fact, this is an extremely one-sided and erroneous identification method. The fact that stainless steel will "rust", also with magnetic 

Stainless steel is more than 430 stainles‍ of the iron matrix, join the network, high alloy nickel, molybdenum and other alloying elements, its biggest feature is the corrosion resistance is strong, but not absolute, stainless steel does not rust. In some coastal areas or areas with serious air pollution, while larger chloride ion content in the air, exposed to the atmosphere of the stainless steel surface may be some rust, but these only surface rust, will not erode the steel inside the base.

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There is no magnetic 201 stainless steel

201 austenitic magnetic stainless, should not magnetic. 

However, the actual 304 stainless steel strip‍ may also be produced using magnetism. 

Such as the production process, not all the tissue in which the formation of austenite, the Cold rolled stainless steel‍ of ferrite or other magnetic organization. 

Such as cold, for austenitic caused damage. 

Is possible to generate magnetic.‍

Magnetic stainless steel - martensitic stainless steel profile

magnetic stainless steel martensitic stainless steel: high strength, ductility and weldability is poor. Martensitic stainless steel grades are used grade 430 stainless steel  3Cr13, etc., due to the higher carbon content, it has a high strength, hardness and wear resistance, corrosion resistance, but slightly lower for high mechanical performance requirements, corrosion Precision stainless steel Some of the general requirements of the parts, such as springs, turbine blades, valves and other hydraulic machines. Such steel is after quenching, tempering use.‍

Defined magnetic stainless steel

magnetic stainless steel refers to the resistance of air, steam, water and 410 stainless steel plate‍ corrosive medium and weak acid, alkali, salt and other chemical etching medium corrosion of steel, also known as acid-resistant stainless steel. Practical applications, often the weak corrosion 304 ss sheet‍ as stainless steel corrosion medium, and the resistance to chemical corrosion of steel known as acid-resistant steel. Due to the difference in chemical composition, the former does not necessarily resistant to chemical corrosion, while the latter generally have a stainless steel.

The surface properties of magnetic stainless steel

Corrosive chemicals in the air or in a high-alloy steel to resist corrosion, stainless steel is a beautiful surface and good corrosion resistance, without going through the stainless steel 304 plate‍ surface treatment, and play a magnetic stainless steel surface properties inherent in the use in the wide range of steel, often referred to stainless steel. Representative of the performance of 13 chrome steel, 18-8 chrome-nickel steel alloy. From the perspective of metallographic analysis, because the stainless steel contains chromium chromium film formed on the grade 430 stainless steel‍ leaving a thin, the membrane separating the oxygen from corrosion-resistant steel intrusive role. To maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium.

Magnetic stainless steel plate manufacturing method

Stainless steel plate manufacturing method are two hot and cold, including sheets and 4.5-35 mm thickness of 0.5-4 mm thick by organizational characteristics of steel is divided into five categories: austenitic, austenitic - ferritic, ferritic, martensitic, precipitation hardening. Requirements can withstand acid, 410 stainless steel plate‍ acid - ferric sulfate, nitrate, nitric acid - hydrofluoric acid, sulfuric acid - stainless steel 409‍ sulfate, phosphoric acid, formic acid, acetic acid and other corrosive, widely used in chemical, food, pharmaceutical, paper, oil, nuclear, etc. industry and construction, kitchen utensils, cutlery, vehicles, household appliances all kinds of spare parts.

Premise magnetic stainless steel performance to meet the requirements of

In order to ensure the yield strength of various types of stainless steel, mechanical properties of tensile strength, elongation and hardness to meet the requirements, you must go through stainless steel 430‍, solution treatment, aging heat treatment prior to delivery of steel. Corrosion resistance of stainless steel depends primarily on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and internal organizational structure, play a major role in the chromium. Chromium has a high chemical stability, steel coil stainless steel‍ film formed on the surface of the metal with the outside world to isolate and protect steel from oxidation, increase the corrosion resistance of steel. After the destruction of the passive film, corrosion resistance decreased.

Analysis of the performance characteristics of magnetic stainless steel plate

Corrosion resistance
Stainless steel with nickel-chromium alloy with an unstable 304 similar to resist corrosion. For a long time in the degree of chromium carbide heating temperature range may affect alloy 430 stainless steel sheet and 347 in the harsh corrosive medium. Mainly used in high temperature applications, high-temperature applications require materials with strong anti-allergy activity in order to prevent stainless steel coils between grains lower temperatures.
High temperature oxidation resistance
Stainless steel has high temperature oxidation resistance, however, the oxidation rate will be affected by exposure to environmental and product form factors such as inherent.

Technical Standard magnetic stainless steel plate

Corrosion resistance of stainless steel plate, the bending workability and toughness of welded portion, and the punching workability of the welded portions of high-strength steel sheet excellent in its manufacturing method. Specifically included are the C: 0.02% or less, N: 409 stainless steel or less, Cr: more than 11% but less than 17%, the content of the appropriate Si, Mn, P, S, Al, Ni, and satisfies 12 ≤ Cr Mo 1.5Si ≤ 17,1 ≤ Ni 30 (CN) 0.5 (Mn Cu) ≤ 4, Cr 0.5 (Ni Cu) 3.3Mo ≥ 16.0,0.006 ≤ CN ≤ 0.030 stainless steel plate heated to 850 ~ 1250 ℃, and then to 1 Stainless steel factory the cooling rate of the above heat treatment. This can be a tissue containing mroe than 12% volume fraction of martensite, 730MPa or more high strength, corrosion resistance and bending workability, excellent HAZ toughness, high strength stainless steel. Recycling containing Mo, B, etc., can significantly improve the performance of welded parts stamping.

magnetic stainless steel sheets of non-magnetic or weakly magnetic introduction

Austenite is weak magnetic or non-magnetic, while ferrite and martensite is magnetic, due to improper segregation smelting or heat, or may cause a small amount of martensite 304 austenitic ferritic 430 stainless steel suppliers occurs organization, so 304 will appear weak magnetic. In addition, 304 stainless steel after cold working, the organizational structure will be transformed to martensite, the greater the cold deformation, stainless steel magnetic transformation, the more will be the stronger magnetic. Want to completely eliminate 304magnetic stainless steel sheets, you can restore stability austenite at high temperature solution treatment, thus eliminating magnetic.

introduction of magnetic stainless steel

Typically, 410 stainless steel plate stainless steel (represented in 304) is non-magnetic, but may have weak magnetism, and ferrite (mainly 430,409 L, 439, and 445NF etc.) and martensite (in 410 as the representative) are generally with magnetic. 

magnetic stainless steel there are some kinds of Precision stainless steel(such as 304, etc.) are classified as "non-magnetic stainless steel" refers to its magnetic indicator just below a certain value, that is, more or less generally stainless steel with a certain magnetism.

Magnetic magnetic stainless materials

Therefore, the magnetic material is arranged by the molecule determines whether the same rules and isotropic electron spin, we believe that the physical properties of stainless steel coils manufacturers, and corrosion resistance of the material can then be stainless steel 301 by the chemical composition of the material, and chemical materials properties, and regardless of whether there is a magnetic material. From magnetic stainless development perspective, instead of the 300 series 400 series can be described as a trend.