Stainless Steel Base Metal Categories

Stainless Steel Base Metal Categories

Posted in the Top Stories Forum

Since: Nov 13

Chongqing, China

#1 Nov 5, 2013
We all know that metals and alloys are solid crystals, which in its interior atoms are arranged according to certain rules, arranged generally three ways namely: body-centered cubic lattice structure, face-centered cubic lattice structure and the hcp lattice structure.
[url=http://www.mirachmetallur ss-steel-bar/]cold drawn stainless steel bar[/url] is composed of a polycrystalline structure which is formed in the metal of the crystallization process . Composed of iron-carbon alloy of iron with two lattice structure : 910 ℃ the following as having a body-centered cubic lattice structure of α - iron , 910 ℃ for more than a face-centered cubic lattice structure Υ - iron . If the carbon atom to squeeze [url=http://www.mirachmetallur ss-steel-bar/]stainless steel bar[/url], which does not destroy the iron has the lattice structure , called a solid solution of such materials . Carbon dissolved in the α - Fe solid solution formed in said ferrite, its ability to dissolve the carbon is very low, the maximum solubility of not more than 0.02%. While the carbon dissolved in the Υ - the formation of a solid solution of iron called austenite , and its ability to dissolve the carbon is higher, up to 2%. Austenitic iron -carbon alloy high-temperature phase . Steel of austenite formed at high temperatures , cooled to below 727 ℃ supercooled austenite becomes unstable . If the cooling rate is too great to cool to below 230 ℃ , when the austenite diffusion of carbon atoms is no longer possible , the direct transformation of austenite into a carbon supersaturated solid solution α , called martensite . Since [url=http://www.mirachmetallur ss-steel-bar/]hot rolled stainless steel bar[/url], causing the strength and hardness of martensite , plastic lower brittleness increases . The corrosion resistance of stainless steel mainly from chromium.

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