Standard: GB / T 1220-1992
● Features and application:
Good general corrosion resistance of steel. For building decoration, heavy oil burner parts, home appliances and appliances components.
● Chemical Composition:
Carbon C: 0.12
Si Si: ≤ 0.75
Manganese Mn: ≤ 1.00
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: 16.00 ~ 18.00
Ni: to allow containing ≤ 0.60
● Mechanical Properties:
Tensile strength σb (MPa): ≥ 450
Conditions yield strength σ0.2 (MPa): ≥ 205
Elongation δ5 (%): ≥ 22
Reduction of area ψ (%): ≥ 50
Hardness: ≤ 183HB
● Heat treatment and microstructure specifications:
Heat treatment specifications: air-cooled 780 ~ 850 ℃ annealing or slow cooling.
Microstructure: Organizing for the ferrite.
