Grade 12CrMo4
Corresponding Standard ISO 4954-2018
Steels for cold heading and cold extruding
Classification Alloy Steel
12CrMo4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu Mo
Minimum Value 0.1 - 0.6 - - 0.9 - 0.15
Maximum Value 0.15 0.3 0.9 0.025 0.025 1.2 0.25 0.25
12CrMo4 Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Reduction of Area
ψ
%
Hardness
HBW
5<d≤40 +AC ≤500 ≥62
5<d≤40 +FP 135~185
2<d≤5 +AR+C+AC ≤500 -
5<d≤40 +AR+C+AC ≤480 ≥64
5<d≤40 +AR+C+AC+LC ≤520 ≥62
Approximate Comparison Table
International Organization for Standardization European Standard
ISO EN Numerical Grade
12CrMo4 12CrMo4 1.7201
12CrMo4 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!