1Cr17 stainless steel

1Cr17 stainless steel, the tensile strength is greater than 450, the yield strength is greater than 205, and the HBS is less than 183 (the data is the annealed state).

1cr17 Chemical composition:
Carbon C: 0.12
Silicon Si: ≤0.75
Manganese Mn: ≤1.00
Sulfur S: ≤0.030
Phosphorus P: ≤0.035
Chromium Cr: 16.00～18.00
Nickel Ni: allowed to contain ≤ 0.60

1cr17 Mechanical Properties:
Tensile strength σb (MPa): ≥450
Conditional yield strength σ0.2 (MPa): ≥205
Elongation δ5 (%): ≥22
Area shrinkage ψ (%): ≥50
Hardness: ≤183HB
Annealing at 780～850℃ with air cooling or slow cooling.

1cr17 stainless steel, steel + 12% or more of chromium can prevent oxidation caused by natural factors, it is called stainless steel, and its code name in JIS is 430, so it is also called 1cr17 stainless steel.

However, 1cr17 stainless steel cannot resist the oxidation caused by chemical substances in the air. Because there are more and more acidic chemicals in the air, 1cr17 stainless steel will still be oxidized (rusted) due to unnatural factors after being used for a period of time. Happening.

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