Classification de l'acier inoxydable et composition chimique

Classification de l'acier inoxydable et composition chimique

Stainless Steel Classification

Stainless steel is classified into three main types:Stainless Steel Classification and Chemical

• Austenitic stainless steel
• Ferritic stainless steel
• Martensitic stainless steel

Austenitic Stainless Steel Pipes

The seamless stainless steel pipes we produce, including round, square, rectangular, and custom thick-walled pipes, are made from austenitic stainless steel. Below are the chemical compositions of commonly used materials:

201 Tuyau en acier inoxydable

• C: ≤0.15%
• Si: ≤1.00%
• Mn: 5.50-7.50%
• P: ≤0.060%
• S: ≤0.030%
• Ni: 3.50-5.30%
• Cr: 16.00-18.00%
• N: ≤0.25%

301 Tuyau en acier inoxydable

• C: ≤0.15%
• Si: ≤1.0%
• Mn: ≤2.0%
• Cr: 16.0-18.0%
• Ni: 6.0-8.0%
• S: ≤0.03%
• P: ≤0.045%

304 Tuyau en acier inoxydable

• C: ≤0.08%
• Si: ≤1.0%
• Mn: ≤2.0%
• Cr: 17.0-19.0%
• Ni: 8.0-10.0%
• S: ≤0.03%
• P: ≤0.045%

316L Stainless Steel Pipe

• C: ≤0.03%
• Si: ≤1.0%
• Mn: ≤2.0%
• Cr: 16.0-18.0%
• Ni: 10.0-14.0%
• S: ≤0.03%
• P: ≤0.045%
• Mo: 2.00-3.00%

2520 Tuyau en acier inoxydable

• C: ≤0.08%
• Si: ≤1.0%
• Mn: ≤2.0%
• Cr: 24.0-26.0%
• Ni: 19.0-22.0%
• S: ≤0.03%
• P: ≤0.045%

321 Tuyau en acier inoxydable

• C: ≤0.12%
• Si: ≤1.0%
• Mn: ≤2.0%
• Cr: 16.0-19.8%
• Ni: 8.0-10.0%
• S: ≤0.03%
• P: ≤0.035%
• Mo: 2-3%

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