SUS309S 
 Material Name: SUS309S characteristics and application: SUS309s heat-resistant austenitic stainless steel, because steel containing chromium and nickel content ratio between austenite possible on the basis of a small amount of ferrite, The corrosion resistance and good heat resistance than 0Cr19Ni9 steel, and oxidation resistance 也好. 309S contains sulfur components, the main requirements for cutting and high tables Guanghao occasions. Adding Ti to improve resistance to intergranular corrosion, not recommended for decorative parts. [Chemical composition 
 Carbon C: "0.08 Silicon Si:" 1.00 Manganese Mn: "2.00 Sulphur S:" 0.030 P P: "0.035 Chromium Cr :17.00-19 .00 Ni Ni :9.00-12 .00 Other: Titanium Ti: ≥ 5 × C% 
 SUS309S 
 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 
 SUS309S 
 [3] Microstructure: Organizing for the austenitic type.