Grade ML20CrMo
Corresponding Standard GB /T 28906-2025
Hot Rolled Wire Rod for Cold Heading
Classification Alloy Steel
Properties Forgability Weldability
ML20CrMo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.18 0.1 0.6 - - 0.9 0.15
Maximum Value 0.23 0.3 0.9 0.025 0.02 1.2 0.25
ML20CrMo Mechanical Properties
Tensile Strength
σb
Mpa
Reduction of Area
ψ
%
≤560 ≥58
Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization
GB JIS ASTM ISO
ML20CrMo SCM420 4120 20CrMo4
ML20CrMo Corresponding Standards(Same grade name, different standards)

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