Chemical Composition (%)
C: ≤ 0.15
Si: ≤ 1.00
Mn: ≤ 2.00 [1]
  P: ≤ 0.20
S: ≥ 0.15
Cr :17.00-19 .00
Ni :8.00-10 .00
Mechanical properties:
Hardness (HB): ≤ 187
Tensile strength (бb) (Mpa): ≥ 520
Yield strength (σs) (Mpa): ≥ 205
Elongation (δ)%: ≥ 40
Reduction in area (ψ)%: ≥ 50