201 316 Cold Rolled Stainless Steel Strip 2B BV Antirust Anti Corrosion

Grade 201 316 304 Hot Cold Rolled Stainless Steel Strips For Building Materials

We usually say "stainless steel", full name is "rust resistant acid steel". To prevent steel from rusting, it is as simple as adding some metal impurities to make an alloy (such as chromium). But not rust, only on behalf of it will not be air corrosion, ability or too poor. So we also need it to resist chemical corrosion, so there is the "rust resistant acid steel". Want to make stainless acid steel, need to add many kinds of metal, different metal formula formed a different stainless steel.
304 and 316 are austenitic stainless steel. Stainless steel is often divided into: martensitic steel, ferrite steel, austenitic steel, austenitic - ferrite (duplex) stainless steel and precipitation hardening stainless steel. In addition, can be divided into: chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel. Among them, austenitic stainless steel has the best comprehensive performance and no magnetism, so it is most widely used in our daily life. 304 and 316 belong to austenitic stainless steel.
304 stainless steel corrosion resistance has been very strong, the NATIONAL standard positioning "food grade" metal - normal contact with water, tea, coffee, milk, oil, salt, sauce and vinegar and so on. 316 stainless steel is further upgraded on this basis (control the proportion of impurities, add molybdenum), so that the corrosion resistance is stronger, in addition to oil, salt, sauce, vinegar and tea, all kinds of strong acid and alkali, it can resist. Not only that, 316 stainless steel is better adaptability to the environment, too high or too low temperature, do not affect the corrosion resistance of 316 stainless steel. But 316 costs more to produce and costs more.

304:18/8 stainless steel. Products such as: corrosion - resistant containers, tableware, furniture, railings, medical equipment. The standard ingredient is 18 % chromium and 8 % nickel. For non magnetic stainless steel, can not be changed by heat treatment of its metallographic structure. GB brand is 06Cr19Ni10.

304 L: Same as 304, low carbon, so more corrosion resistance, easy heat treatment, but poor mechanical properties.

304 N: With the same characteristics of 304, is a stainless steel containing nitrogen, nitrogen is added to improve the strength of steel.

After 304, the second most widely used steel is mainly used in the food industry, watch accessories, pharmaceutical industry and surgical equipment. Molybdenum is added to give it a special structure that is resistant to corrosion. It is also used as "Marine steel" because of its better resistance to chloride corrosion than 304. SS316 is usually used in nuclear fuel reprocessing units.

316L: low carbon, so more corrosion resistance, easy heat treatment, products such as: chemical processing equipment, nuclear power generator, refrigerant storage.