25CrMo4 1.7218 - EN 10263-4-2017

Grade	25CrMo4
European Standard Steel Grade	1.7218
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

25CrMo4 Chemical Element Composition Content (%)

Component	C ^ⓓ	Si ^ⓔ	Mn	P	S	Cr	Cu	Mo
Minimum Value	0.22	-	0.6	-	-	0.9	-	0.15
Maximum Value	0.29	0.3	0.9	0.025	0.025	1.2	0.25	0.3

25CrMo4 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)	≤570	≥62
Wire; 5<d≤40	Spheroidizing + Cold Drawn + Spheroidizing (+AC+C+AC)	≤560	≥62
Bars, wires; 2<d≤5	Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)	≤610	≥60
Bars, wires; 5<d≤40	Spheroidizing + Cold Drawn + Spheroidizing + Quenched Rolling (+AC+C+AC+LC)	≤600	≥60
Bars, rods, wires; 5<d≤40	Spheroidizing or Spheroidizing + Rotary Peeling (+AC or +AC+PE)	≤580	≥60

1 Approximate Comparison Table structural alloy steel

2 Approximate Comparison Table

3 Approximate Comparison Table

China		Japan	International Organization for Standardization	European Standard
GB	ISC	JIS	ISO	EN	Numerical Grade
30CrMo	A30302	SCM425 SCM425H	25CrMo4	25CrMo4	1.7218

4 Approximate Comparison Table structural alloy steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	SAE	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
30CrMo	SCM420 SCM430	4130	25CrMo4	25CrMo4	25CD4	25CrMo4	1.7218	20KHM 30KHM 30KHMA	2225	708A25 708M25 CFS10

5 Approximate Comparison Table

Japan	International Organization for Standardization	European Standard
JIS	ISO	EN	Numerical Grade
SCM425 SCM425H	25CrMo4	25CrMo4	1.7218

25CrMo4 Corresponding Standards(Same grade name, different standards)

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