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.
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2014年4月28日星期一
2014年4月25日星期五
2014年4月21日星期一
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.
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.
2014年4月15日星期二
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 .
2014年4月13日星期日
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 .
( 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 .
2014年4月10日星期四
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 .
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 .
2014年4月9日星期三
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.
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.
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