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Classification of stainless steel by seamless steel pipe manufacturers

Fujin Iron and Steel2021-09-29

According to the metallographic structure, it can be divided into 1: Ferritic stainless steel (400 series), chromium stainless steel, mainly represented by Gr13, G17, Gr27-30

Austenitic stainless steel (300 series), chromium-nickel stainless steel, mainly represented by 304, 316, 321, etc.

Martensitic stainless steel (200 series), chromium-manganese stainless steel, high carbon content, mainly represented by 1Gr13, etc.

2: Stainless steel is classified according to the label

One: Austenitic stainless steel (201 304 310s 316 etc.)

Two: Super austenitic stainless steel (904L, 254 SMo)

3. Martensitic stainless steel (410, 420, 431)

4. Ferritic stainless steel (430, 434)

5. Austenitic-martensitic duplex stainless steel (2205, 2304, 2507)

6. Precipitation hardening stainless steel (17-4PH, 17-7PH, 15-7Mo)