20NiCrMoS2-2 1.6526 - EN 10263-3-2017

Grade	20NiCrMoS2-2
European Standard Steel Grade	1.6526
Corresponding Standard	EN 10263-3-2017 Steel Rod, Bars and Wire for Cold Heading and Cold Extrusion Part 3: Technical Delivery Conditions for Steels for Case Hardening 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

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
Bars; 5<d≤40	Processed to Ferrite-Pearlite Structure and Hardness Range (+FP)			149~194
Bars; 5<d≤40	Spheroidizing (+AC)	≤590	≥60
Bar, wire; 2<d≤5	Untreated, Cold Drawn, Spheroidizing Treatment (+U+C+AC)	≤590	≥62
Bar, wire; 5<d≤40	Untreated, Cold Drawn, Spheroidizing Treatment (+U+C+AC)	≤570	≥62
Bar, wire; 2<d≤5	Untreated, Cold Drawn, Spheroidizing Treatment, and Tempered Rolling (+U+C+AC+LC)	≤630	≥60
Bar, wire; 5<d≤40	Untreated, Cold Drawn, Spheroidizing Treatment, and Tempered Rolling (+U+C+AC+LC)	≤610	≥60
Bars, wire; 5<d≤10	Spheroidizing Treatment and Cold Drawing (+AC+C)	≤720	≥57
Bars, wire; 10<d≤40	Spheroidizing Treatment and Cold Drawing (+AC+C)	≤710	≥57

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)

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