The performance classification of stainless steel pipes is mainly based on their chemical composition and mechanical properties. Common classifications include:
- Austenitic stainless steel
- Representative materials:304,316,321
- Features: Excellent corrosion resistance and formability, good toughness and strength, suitable for general chemical, food and pharmaceutical industries.
- Ferritic stainless steel
- Representative materials:430,409
- Features: Good corrosion resistance, especially poor corrosion resistance to chlorides, suitable for automobile exhaust systems and home appliances, etc.
3.Martensitic stainless steel- Representative materials:410,420, 440C
- Features: High hardness and wear
resistance, mainly used for cutting tools, bearings and mechanical parts. - Duplex stainless steel
- Representative materials:2205,2507
- Features: It has the dual characteristics of austenite and ferrite, excellent corrosion resistance and strength, and is suitable for marine environment and chemical treatment.
