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Stainless steel: SUS321
● Features and Scope:
Add Ti improve resistance to intergranular corrosion, is not recommended for decorative parts.
● Chemical Composition:
Carbon C: ≤0.08
Si Si: ≤1.00
Manganese Mn: ≤2.00
Sulfur S: ≤0.030
Phosphorus P: ≤0.035
Chromium Cr: 17.00 ~ 19.00
Ni Ni: 9.00 ~ 12.00
Titanium Ti: ≥5 × C%
● Mechanical Properties:
Tensile strength σb (MPa): ≥520
Conditions yield strength σ0.2 (MPa): ≥205
Elongation δ5 (%): ≥40
Reduction of ψ (%): ≥50
Hardness: ≤187HB; ≤90HRB; ≤200HV
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) solid solution 920 ~ 1150 ℃ rapid cooling; 2) According to the requirements may be stabilizing treatment, heat treatment temperature is 850 ~ 930 ℃, but it must be stated in the contract.
Microstructure: Organizing for the austenitic type.
● Delivery status: to heat treatment delivery in general, the treatment types specified in the contract; not indicated, by not heat treatment delivery. |
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