20NiCrMoS2-2 - ISO 4954-1-2024

Grade	20NiCrMoS2-2
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

20NiCrMoS2-2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	-	0.65	-	0.02	0.35	0.4	-	0.15
Maximum Value	0.23	0.3	0.95	0.025	0.04	0.7	0.7	0.25	0.25

20NiCrMoS2-2 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
5＜d≤40	+AC	≤590	≥60
5＜d≤40	+FP			149~194
2≤d≤5	+AR+C+AC	≤590	≥62
5＜d≤40		≤570	≥62
2≤d≤5	+AR+C+AC+LC	≤630	≥60
5＜d≤40		≤610	≥60
5＜d≤10	+AC+C	≤720	≥57
10＜d≤40		≤710	≥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	Germany	European Standard		Sweden
ISO	DIN EN/DIN	EN	Numerical Grade	SS
20NiCrMoS2-2	20NiCrMoS2	20NiCrMoS2-2	1.6526	2506

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
20NiCrMoS2-2	20NiCrMoS2-2	1.6526

20NiCrMoS2-2 Corresponding Standards(Same grade name, different standards)

1	EN 10084-1998
	20NiCrMoS2-2 1.6526
2	EN 10263-3-2001
	20NiCrMoS2-2 1.6526
3	DIN EN 10263-3-2018
	20NiCrMoS2-2 1.6526
4	EN 10263-3-2017
	20NiCrMoS2-2 1.6526
5	DIN EN ISO 683-3-2019
	20NiCrMoS2-2
6	ISO 683-3-2019
	20NiCrMoS2-2
7	DIN EN 10084-2008
	20NiCrMoS2-2 1.6526
8	ISO 683-11-2012
	20NiCrMoS2-2
9	ISO 683-18-2014
	20NiCrMoS2-2
10	ISO 4954-2018
	20NiCrMoS2-2
11	NF EN 10084-2008
	20NiCrMoS2-2 1.6526
12	ISO 4954-1-2024
	20NiCrMoS2-2

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