SUS309S
Adding Ti to improve resistance to intergranular corrosion, 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
          Ti Ti: ≥ 5 × C%
Mechanical properties:
Tensile strength σb (MPa): ≥ 520
         Conditions yield strength σ0.2 (MPa): ≥ 205
         Elongation δ5 (%): ≥ 40
         Reduction of area ψ (%): ≥ 50
         Hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV
● Heat treatment and microstructure specifications:
    Heat treatment specifications:
             1) solid solution 920 ~ 1150 ℃ fast-cooling;
             2) According to the demand side, demand 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:
           Generally heat treatment delivery, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.