Grade
34CrMo4
Germany W-Nr.
1.7220
Corresponding Standard
DIN EN 10263-4-2018
Steel Rod, Bars and Wire for Cold Heading and Cold Extrusion Part 4: Technical Delivery Conditions for Steels for Quenching and Tempering
Classification
Alloy Steel
34CrMo4 Chemical Element Composition Content (%)
Component
C ⓓ
Si ⓔ
Mn
P
S
Cr
Cu
Mo
Minimum Value
0.3
-
0.6
-
-
0.9
-
0.15
Maximum Value
0.37
0.3
0.9
0.025
0.025
1.2
0.25
0.3
34CrMo4 Mechanical Properties
condition
Heat Treatment or Condition
Tensile Strength σb
Mpa
Reduction of Area ψ
%
Wire; 2<d≤5
Spheroidizing + Cold Drawn + Spheroidizing (+AC+C+AC)
≤590
≥62
Wire; 5<d≤40
Spheroidizing + Cold Drawn + Spheroidizing (+AC+C+AC)
≤580
≥62
Bars, wires; 2<d≤5
Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)
≤630
≥60
Bars, wires; 5<d≤40
Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)
≤620
≥60
Bars, rods, wires; 5<d≤40
Spheroidizing or Spheroidizing + Rotary Peeling (+AC or +AC+PE)
≤600
≥60
1 Approximate Comparison Table Structural Alloy Steel
2 Approximate Comparison Table Cold Heading Steel
3 Approximate Comparison Table Structural Alloy Steel
4 Approximate Comparison Table Cast Steel
5 Approximate Comparison Table Cast Steel
6 Approximate Comparison Table Cast Steel
7 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
34CrMo4 Corresponding Standards(Same grade name, different standards)
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