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Grade 42CrMoS4
Corresponding Standard ISO 4954-1-2024
Steels for cold heading and cold extruding - Technical delivery conditions - Part1: Non-alloy and alloy steels
Classification Alloy Steel
42CrMoS4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu Mo
Minimum Value 0.38 - 0.6 - 0.02 0.9 - 0.15
Maximum Value 0.45 0.3 0.9 0.025 0.04 1.2 0.25 0.3
42CrMoS4 Mechanical Properties
diameter
d
mm		 Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Reduction of Area
ψ
%
5＜d≤40 +AC or +AC+PE ≤630 ≥58
2≤d≤5 +AC+C+AC ≤620 ≥60
5＜d≤40 ≤610 ≥60
2≤d≤5 +AC+C+AC+LC ≤660 ≥58
5＜d≤40 ≤650 ≥58
①+AR=as hot-rolled；+AR or +PE=as hot-rolled or peeled；+AR+C=as hot-rolled+cold drawn；+AR+C+AC=as hot-rolled+cold drawn+spheroidized；+AR+C+AC+LC=as hot-rolled+cold drawn+spheroidized+skin passed；+AC= spheroidized ；+AC or +AC+PE=spheroidized or spheroidized+peeled；+AC+C=spheroidized +cold drawn；+FP=treated to ferrite-pearlite structure and hardness range；+AC+C+AC=spheroidized +cold drawn + spheroidized；+AC+C+AC+LC=spheroidized +cold drawn + spheroidized + skin passed
1 Approximate Comparison Table
United States International Organization for Standardization Germany France European Standard
ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade
4140 42CrMoS4 42CrMoS4 42CD4u 42CrMoS4 1.7227
2 Approximate Comparison Table
International Organization for Standardization European Standard
ISO EN Numerical Grade
42CrMoS4 42CrMoS4 1.7227
42CrMoS4 Corresponding Standards(Same grade name, different standards)
1 ISO 683-18-1996
42CrMoS4
2 DIN 17200-1987
42CrMoS4 1.7227
3 EN 10083-3-2006
42CrMoS4 1.7227
4 EN 10263-4-2001
42CrMoS4 1.7227
5 DIN EN 10263-4-2018
42CrMoS 4 1.7227
6 EN 10263-4-2017
42CrMoS 4 1.7227
7 ISO 683-2-2016
42CrMoS4
8 ISO 683-18-2014
42CrMoS4
9 EN ISO 683-2-2018
42CrMoS4
10 ISO 4954-2018
42CrMoS4
11 NF EN 10083-3-2006
42CrMoS4 1.7227 (42CD4U)
12 ISO 4954-1-2024
42CrMoS4

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