25CrMo4 - ISO 683-18-2014

25CrMo4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo
Minimum Value	0.22	0.1	0.6	-	-	0.9	-	0.15
Maximum Value	0.29	0.4	0.9	0.025	0.035	1.2	0.4	0.3

25CrMo4 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
16＜t≤100	S.annealed +peeled (+A +SH)				≤212
5≤t≤10	S.annealed +Cold drawn (+A +C)				≤270
10＜t≤16	S.annealed +Cold drawn (+A +C)				≤260
16＜t≤40	S.annealed +Cold drawn (+A +C)				≤255
40＜t≤100	S.annealed +Cold drawn (+A +C)				≤250
16＜t≤40	Quenched and tempered and peeled (+QT+SH)	800~950	≥600	≥14		≥50
40＜t≤100	Quenched and tempered and peeled (+QT+SH)	700~850	≥450	≥15		≥50
5≤t≤16	Quenched and tempered + Cold drawn (+QT +C)	900~1100	≥700	≥9
16＜t≤40	Quenched and tempered + Cold drawn (+QT +C)	800~1000	≥600	≥10
40＜t≤63	Quenched and tempered + Cold drawn (+QT +C)	700~900	≥520	≥11
63＜t≤100	Quenched and tempered + Cold drawn (+QT +C)	700~900	≥450	≥12

1 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

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	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

3 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)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!