405 stainless steel
405 stainless steel is a composite steel that does not produce significant hardening from high temperatures.

405 stainless steel tube annealing / (°C): 780-830 quick cooling or slow
Tensile test: σ0.2 /Mpa≧ 177; σb /Mpa≧ 410; δ5 (%)≧ 20; Ψ(%)≧ 60;
Impact test: Ak / J 78
Hardness test: HBW≤183

405 steel chemical composition 1:
Carbon C: ≤0.08
Manganese Mn: ≤1.00
Silicon Si: ≤1.00
Chromium Cr: 11.5~14.5
Nickel Ni2: ≤0.60
Phosphorus P: ≤0.04
Sulfur S: ≤0.03
Aluminum Al: 0.10~0.30

405 steel characteristics and applications:
405 is equivalent to China’s 0Cr13Al stainless steel, which does not produce significant hardening from high temperature cooling. 405 stainless steel is used as steam turbine material, quenching component, composite steel.