37Cr4 1.7034 - EN 10263-4-2017

Grade	37Cr4
European Standard Steel Grade	1.7034
Corresponding Standard	EN 10263-4-2017 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

37Cr4 Chemical Element Composition Content (%)

Component	C ^ⓓ	Si ^ⓔ	Mn	P	S	Cr	Cu
Minimum Value	0.34	-	0.6	-	-	0.9	-
Maximum Value	0.41	0.3	0.9	0.025	0.025	1.2	0.25

37Cr4 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
Wire; 2<d≤5	Spheroidizing + Cold Drawn + Spheroidizing (+AC+C+AC)	≤580	≥62
Wire; 5<d≤40	Spheroidizing + Cold Drawn + Spheroidizing (+AC+C+AC)	≤570	≥62
Bars, wires; 2<d≤5	Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)	≤620	≥60
Bars, wires; 5<d≤40	Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)	≤610	≥60
Bars, rods, wires; 5<d≤40	Spheroidizing or Spheroidizing + Rotary Peeling (+AC or +AC+PE)	≤590	≥60

1 Approximate Comparison Table Alloy Steel for Quenching and Tempering

China	International Organization for Standardization	European Standard
GB	ISO	EN	Numerical Grade
35Cr	37Cr4	37Cr4	1.7034

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany		France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
35Cr	SCr435H	Gr.5135	37Cr4	37Cr4	1.7034	37Cr4 38C4	37Cr4	1.7034	38KHA 40KH	2245	530A36 530M36

3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
37Cr4	37Cr4	1.7034

37Cr4 Corresponding Standards(Same grade name, different standards)

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