magnetic stainless steel sheet site together

There remind noteworthy point is that , after more than a week of rapid correction, the current construction steel market has been close to cost price, the price will of the next business may be reduced from the previous month . 321 stainless steel plate manufacturers magnetic stainless ex-factory launched a new round of " flat ", after the start of the site together with warmer weather will gradually increase, demand will improve.
China stainless steel mesh editing relevant agencies informed analysts believe that the country in mid- February average daily crude steel production exceeded 200 million tons, this is the first time since last October . On the one hand is the pressure of both steel production and inventory ; hand downstream demand in the steel industry is still not overly magnetic stainless steel. In the steel overcapacity in the background, even if macroeconomic been warmer, it is not enough to improve the operational status of the entire steel industry fundamentally . Steel City is estimated to weak consolidation pattern based.

magnetic stainless steel sheet by the structure

1 , multi- spot welding filter sheet : This product is mainly used by the process of stainless steel filter film . 2 , qiyi magnetic stainless steel sheet edge filter . Stainless steel sheet according to the shape of the filter : rectangular, round, circular , from the shape , waist and shaped .
Stainless steel filter sheet by the structure : single network, multi-layer composite filter sheet , combined filter film .
Stainless steel sheet by layers of filter : single, double, three, four , five, layers.
Stainless steel filter sheet main material : stainless steel sheet metal filter. ( 20 to 800 mesh ) .
Stainless steel filter sheet for the industry: Widely used in " chemical fiber spinning , staple fiber , microfiber , leather, non-woven, plastic granulator (pvc cable jacket material . ) , Sheet extrusion (PEPPABSPS) , masterbatch , rubber "and melt filtration.

Identification of magnetic stainless steel sheets mesh material basics

Today, the market is not stainless steel mesh vane manufacturers untidy mess , there is no unified brand prices. Pricing businesses generally rely on stainless steel mesh material , mesh size , weight, price and other factors . Similarly 80 mesh qiyi magnetic stainless steel mesh specifications, good between 35-45 yuan per square meter , the average 20-25 million, so poor on $ 15. This is such a huge price difference because the stainless steel mesh of different materials, the general absence of nickel , two nickel, nickel- 4 , 304,304 L, 316,316 L and other materials. Nickel nickel content stainless steel mesh different different grades of stainless steel 200 series 201 models will be mixed with manganese and nickel content is low , the price is relatively low , relatively easy to rust ; 304 and 300 series models only chrome and stainless steel coils manufacturers two elements of nickel , nickel is generally accounted for 8 % ratio , which ensures the stability of the stainless steel . As nickel is widely used in industrial elements , the higher the price , so different content raises the price difference .

Advantages of magnetic stainless steel sheets

( 1 ) more than twice as high yield strength than ordinary austenitic stainless steel, and has a plastic molding requires sufficient toughness . Wall thickness using magnetic stainless steel tank or pressure vessel than usual 30-50% reduction in austenite , help reduce costs.
( 2 ) has excellent resistance to stress corrosion cracking capacity , even with the lowest amount of duplex stainless steel alloy also has a higher capacity than the austenitic stainless steel resistant to stress corrosion cracking , especially chlorine ions in the environment . Stress corrosion is a prominent problem difficult to solve common austenitic stainless steel .
( 3 ) In many applications the most common medium of 2205 duplex stainless steel corrosion resistance than ordinary 316L austenitic stainless steel, and super duplex stainless steel with high corrosion resistance , and then some of the medium, such as acetic acid , formic acid can even replace high-alloy austenitic stainless steel, as well as corrosion resistant alloys .
( 4 ) has good resistance to localized corrosion , compared with austenitic stainless steel alloy content corresponding to its resistance to corrosion and wear and fatigue resistance superior to austenitic stainless steel.
( 5 ) the linear expansion coefficient lower than the austenitic stainless steel , and carbon steel close connections for steel has important engineering significance , such as the production of composite panels and linings .
( 6 ) whether under qiyi magnetism stainless steel or static load conditions than the austenitic stainless steel has a higher energy absorption capacity , which structures to cope with unexpected incidents such as collisions , explosions , etc., duplex stainless obvious advantages, there are practical applications .

magnetism stainless steel and carbon steel compared with the following characteristics

1 ) high resistivity , carbon steel is about 5 times .
2 ) a large linear expansion coefficient larger than 40% carbon , and as the temperature rises , the value of the linear expansion coefficient is increased accordingly .
3 ) low thermal conductivity of steel is about 1/ 3 .
Whether stainless steel or 430 stainless steel magnetic , austenitic steel of the best overall performance , both adequate strength, and excellent hardness while the plastic is not high , which is one reason they are widely used . Austenitic stainless steel with the majority of other similar metal material , the tensile strength , yield strength and hardness increase with decreasing temperature ; the plasticity decreases with decreasing temperature . Increase in the tensile strength of 15 ~ 80 ° C temperature range is more uniform . More important: As the temperature decreases , the impact toughness decreased slowly, there is brittle transition temperature . So magnetic stainless steel sheets at low temperatures to maintain sufficient ductility and toughness .
The so-called duplex stainless steel is quenched organization in its solid phase austenitic ferritic phase of each half , at least relative to the general content may be up to 30 %.
Due to the characteristics of the two -phase structure , through proper control of chemical composition and heat treatment process, so that both the advantages of DSS ferritic and austenitic stainless steel .

Austenitic stainless steel anti- corrosion ability

This uniform corrosion can be removed by mechanical polishing . Comparative steel is an austenitic 304 stainless steel sheet popular because of its anti- corrosion ability ( due to stress corrosion cracking , but exceptions ) . As time migration , austenitic stainless steel will be black . If, for aesthetic reasons or otherwise , which blackening can be removed by grinding . Stainless steel in seawater rarely produce uniform rust candle , so in actual use may not have to worry.
Pusher tug propulsion boats on the ocean and on the other by cast stainless steel plate 304 CF-8 ( quite dry type 304 stainless steel) . When not sailing vessels , from the hull to the propeller shaft bearings by forming a conductive metal loop. Type 410 stainless steel components for the equivalent of casting propellers are often draped selection , and has been widely used in other areas such as icebreakers and so on.

magnetism stainless steel is increasingly widespread

Various types of stainless steel is increasingly widely and successfully used in various marine environments . It must be noted , in the sea of stainless steel from corrosion needs to be long-term corrosion engineering complex and a lot of investment. Austenitic and qiyi magnetic stainless steel sheets steel has long been used for navigation on the superheater pipes and power plant turbine blades. In these devices to keep a low chloride content is not easy , because the basic principles of applied technology and general maritime power plant power plant and non-discriminatory. Stainless steel is also used for large -capacity chemical containers on ocean-going merchant ships , the use of the land in some respects very different chemical conditions of use .
Most grades of stainless steel applications in the magnets stainless steel conditions can be satisfied with the result , but different grades of performance is sensitive to stress corrosion cracking . Represented in 410 and 430 martensitic steels represented ferritic steels in sea conditions , it will rust within a few months .

magnetic stainless steel sheets Curtain

So wash interval is influenced by many factors, the main factor is the aesthetic standards required. Although many steel wall is only flushed when the windows, but, in general, stainless steel per year for external washing twice.
Representation of the number and the stainless steel
① with international chemical element symbols and magnetic stainless steel sheets to represent their chemical composition, using the Arabic alphabet to represent ingredient: eg: China, Russia 12CrNi3A
② with a fixed number of digits to represent the stainless steel sheet metal or numbers; such as: USA, Japan, 300 series, 400 series, 200 series;
③ composition and sequence number with the Latin alphabet, saying only that purpose.
The number of rules
① elemental symbols
② purposes, pinyin, open-hearth steel: P, boiling steel: F, killed steel: B, A steel: A, T8: Special 8,
GCr15: Ball
◆ structural steel, spring steel, such as: 20CrMnTi60SiMn, (with a very few that C content)
◆ stainless steel, alloy tool steel (with a few thousandths C content), such as: 1Cr18Ni9 thousandth (ie, 0.1% C), stainless C ≤ 0.08% as 0Cr18Ni9, ultra-low carbon C ≤ 0.03% as 0Cr17Ni13Mo

magnetism stainless steel is also dirty

Exposed to the atmosphere and other materials , like grade 430 stainless steel is also dirty. However, rainfall, there is also a correlation between artificial irrigation and dirty surfaces.
Determine the effect of rainfall through the same lath directly on the atmosphere and on the covered areas. Human artificial washing effect is achieved by using six scrubbing sponge with soapy water to the right of each block is determined every slat . The results showed that , compared with the stainless steel 304 csp in place and covered the place not to be flushed through the rain wash and scrub the artificial surface and remove dust deposition on the surface of the case has a good effect. Has also been found , also affect the condition of the surface machining , the surface roughness of the smooth surface area slats slats better results .

magnetic stainless steel sheets alloying treatment

When you add the amount of chromium reached 10.5% , atmospheric corrosion qiyi magnetic stainless steel sheet increased significantly, but higher chromium content , although still improve corrosion resistance , but not obvious. The reason is that when the steel with a chromium alloying treatment , the type of change has become similar to the surface oxide formed on the surface of pure chromium oxide of the metal . Chromium-rich oxide protects the surface of this tightly adherent to prevent further oxidation. This oxide layer is very thin , it can be seen through the surface of the natural sheen of steel , so stainless steel has a unique surface. Moreover, if the damaged surface , and atmospheric reactions exposed steel surface will 304 stainless steel sheet  re- formation of this " passive film " , continue to play a protective role. Therefore, all of the stainless steel have a common characteristic , i.e., the chromium content of more than 10.5% .