Grade Z120M12
Corresponding Standard NF F 80-107-1984
Materials for Railway Rolling Stock Steels of Recommended Use for The Construction of Railway Rolling Stock Vii - Non-alloy and Alloy Steels, Special Steels for Heat Treatment
Classification Alloy Steel
Z120M12 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 1.05 0.2 11 - -
Maximum Value 1.35 0.6 14 0.045 0.035
Z120M12 Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
d≤16 100°C Quenching in water ≥880 R0.002: ≥315 ≥40

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