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Classification of Stainless Steel

Author:Site Editor     Publish Time: 2019-02-19      Origin:Site

Classification of Stainless Steel

Classification of Stainless Steel

There are many classifications of stainless steel in the world, and the criteria for distinguishing stainless steel from other parts are complicated, but they are generally classified according to metallographic structure, chemical composition, performance characteristics, functional characteristics, processing uses and use industries.

1. Classification by metallographic structure of stainless steel

According to the characteristics of the metallographic structure of stainless steel (that is, the structure of stainless steel), it can be divided into martensitic stainless steel, ferritic stainless steel, austenitic stainless steel and duplex stainless steel.

2. Classification by chemical composition of stainless steel

According to the chemical composition of stainless steel, it can be divided into chromium stainless steel, Chromium-Nickel Stainless steel, chromium-nickel-molybdenum stainless steel, ultra-low carbon stainless steel, High-Molybdenum stainless steel, high-purity stainless steel and so on.

3. Classification according to the properties of stainless steel

According to the properties of stainless steel, it can be divided into sulfuric acid resistant stainless steel, nitric acid resistant stainless steel, stress corrosion resistant stainless steel, pitting corrosion resistant stainless steel and high strength stainless steel.

4. Classification according to the functional characteristics of stainless steel

According to the functional characteristics of stainless steel, it can be divided into non-phosphorus stainless steel, low temperature stainless steel, superplastic stainless steel, clean stainless steel, free cutting stainless steel, etc.

5. Classification according to the processing use of stainless steel

According to the classification of stainless steel processing purposes, it can be divided into pressure processing steel (commonly known as hot working steel) and cutting processing steel (commonly known as cold working steel). The main difference between these two kinds of steels lies in the low magnification structure and surface quality. Relatively speaking, the surface requirement of cold-working steel is not high, and the surface defects allowed are deeper.


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