General classification of stainless steel

General classification of stainless steel

Stainless steel is generally divided into:

  1. Ferritic stainless steel. Chromium 12% ~ 30%. Its corrosion resistance, toughness and weldability increase with the increase of chromium content, and its chloride stress corrosion resistance is better than other kinds of stainless steel.
  2. Austenitic stainless steel. It contains more than 18% chromium, about 8% nickel and a small amount of molybdenum, titanium, nitrogen and other elements. It has good comprehensive performance and can resist the corrosion of various media.
  3. AUSTENITIC FERRITIC duplex stainless steel. It has the advantages of both austenitic and ferritic stainless steel, and has superplasticity.
  4. Martensitic stainless steel. High strength, but poor plasticity and weldability. It should be noted that the strength of stainless steel plate is high and the tool wear of NC punch is large. Generally, it is not suitable for numerical punching.

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