2014年3月27日星期四

The following are the main features of stainless steel coils at room temperature with

A lower temperature ferromagnetic stainless steel , in general, the corrosion resistance is not qiyi stainless steel sheet coil, but the high-intensity , high-strength structural steel used .
2 , with a stable austenite at high temperatures , air or oil cooled down into the martensite phase , with full martensite at room temperature .
Duplex stainless steel
 Components of high Cr high N, at room temperature with a mix of austenite and ferrite phase , representing the steel is 2304,2205,2507 . The main features are:
1 , a substantially ferritic structure , having 30-50 % ferrite + austenite two-phase structure qiyi stainless steel coil suppliers to room temperature at a high temperature .
2, high yield strength, superior resistance to pitting corrosion , stress corrosion resistance , ease of forming and welding.

stainless steel plate layman's terms

Heat treatment can be adjusted by the mechanical properties of stainless steel , in layman's terms , is a class of hardened stainless steel 304 plate  Typical grades for Cr13 type, such as 2Cr13, 3Cr13, 4Cr13 and so on. After quenching, the higher hardness , different tempering temperature with different combinations of strength and toughness , mainly for steam turbine blades, cutlery , surgical instruments . According to differences in chemical composition , can be divided into martensitic chromium martensitic stainless steel and martensitic chromium nickel steel categories. Depending on the organization and to strengthen the mechanism , can be divided into 410 stainless steel plate , martensitic and semi- austenitic ( or semi- martensite ) precipitation hardening stainless steel and maraging stainless steel.

2014年3月26日星期三

Non-magnetic stainless steel coils and has a high toughness and ductility

Carbon content of 0.03% or less of the ultra-low carbon nickel-chromium stainless steel such as 00Cr18Ni10, 00Cr17Ni13Mo2, chromium-nickel stainless steel containing titanium , which are among 0Cr18Ni9Ti as qiyi stainless steel sheet coil to intergranular corrosion . Manganese , nitrogen, chromium-nickel stainless steel , such as 1Cr18Mn8Ni5N and 0Cr18Ni9N , etc., have a higher yield strength.
It is understood the metal line , at room temperature with a qiyi stainless steel coil suppliers tissue . Cr steel containing about 18%, Ni8% ~ 10%, while about 0.1% C , having a stable organization . Chrome-nickel stainless steel , including the famous 18Cr-8Ni steel and Cr increase on this basis , Ni content and adding Mo, Cu, Si, Nb, Ti and other elements developed series of high Cr-Ni steels . Non-magnetic stainless steel and has a high toughness and ductility , but lower intensity , it is impossible to make it through the strengthening phase change can only be strengthened by cold working .

2014年3月25日星期二

stainless steel coils common classification methods

Many stainless steel , performance has varied , common classification methods are:
① Press the organizational structure of the classification of steel, such as stainless steel, ferritic qiyi 304 stainless steel coil , austenitic stainless steel and duplex stainless steel.
② Press the main chemical ingredient in steel or steel to classify some of the characteristic elements such as chromium stainless steel, chrome-nickel stainless steel, chrome -nickel-molybdenum stainless steel and low carbon stainless steel , high molybdenum stainless steel , high purity stainless steel.
③ Press steel performance characteristics and uses to classify , such as resistance to nitric acid ( nitrate levels) stainless steel, acid -resistant steel , stainless steel resistant to pitting , qiyi 430 stainless steel coil corrosion of stainless steel , high- strength stainless steel.
④ Press features steel classification , such as low temperature stainless steel , non-magnetic stainless steel , free cutting steel , stainless steel and other superplasticity .

2014年3月24日星期一

stainless steel coil surface treatment

qiyi stainless steel coil is the world's most widely used and best price-performance steel surface treatment.
With the implementation of the western development strategy, in-depth electric power, natural gas and water diversion, the Three Gorges Project, two rural power grid networks and urban transformation projects unfold, our hot dip galvanizing industry has entered a new round of high-speed stage of development.
China's stainless steel industry raw materials in foreign countries is a chromium-nickel oversupply, while the situation in our country is in short supply; stainless steel is overcapacity, oversupply, frequent fluctuations in profit margins. With the growing competition in the steel industry, large steel producers merger integration and qiyi stainless steel sheet coil is becoming more frequent, more emphasis on domestic producers of stainless steel excellent market research on the industry, especially for enterprise development environment and changes in customer demand trends in-depth study. Because of this, a large number of outstanding domestic stainless steel brand has risen rapidly, becoming a leader in the stainless steel industry!