20MnCrS5 - ISO 4954-1-2024

Grade	20MnCrS5
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

20MnCrS5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu
Minimum Value	0.17	-	1.1	-	0.02	1	-
Maximum Value	0.22	0.3	1.4	0.025	0.04	1.3	0.25

20MnCrS5 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
5＜d≤40	+AC	≤570	≥60
5＜d≤40	+FP			HB: 152~201
2≤d≤5	+AR+C+AC	≤570	≥62
5＜d≤40		≤550	≥62
2≤d≤5	+AR+C+AC+LC	≤610	≥60
5＜d≤40		≤590	≥60
5＜d≤10	+AC+C	≤680	≥57
10＜d≤40		≤670	≥57

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 Structural Alloy Steel

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
20MnCrS5	20MnCrS5	1.7149

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
20MnCrS5	20MnCrS5	1.7149

20MnCrS5 Corresponding Standards(Same grade name, different standards)

1	DIN 17210-1986
	20MnCrS5 1.7149
2	ISO 683-18-1996
	20MnCrS5
3	EN 10084-1998
	20MnCrS5 1.7149
4	EN 10263-3-2001
	20MnCrS5 1.7149
5	DIN EN 10263-3-2018
	20MnCrS5 1.7149
6	EN 10263-3-2017
	20MnCrS5 1.7149
7	DIN EN ISO 683-3-2019
	20MnCrS5
8	ISO 683-3-2019
	20MnCrS5
9	DIN EN 10084-2008
	20MnCrS5 1.7149
10	ISO 683-11-2012
	20MnCrS5
11	ISO 683-18-2014
	20MnCrS5
12	ISO 4954-2018
	20MnCrS5
13	NF EN 10084-2008
	20MnCrS5 1.7149
14	ISO 4954-1-2024
	20MnCrS5

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