25CrMoS4 - ISO 683-18-2014

Grade	25CrMoS4
Corresponding Standard	ISO 683-18-2014 Heat-treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Steel Products
Classification	Alloy Steel

25CrMoS4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo
Minimum Value	0.22	0.1	0.6	-	0.02	0.9	-	0.15
Maximum Value	0.29	0.4	0.9	0.025	0.04	1.2	0.4	0.3

25CrMoS4 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 Alloy Steel for Quenching and Tempering

International Organization for Standardization	Germany		France	European Standard
ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade
25CrMoS4	25CrMoS4	1.7213	25CD4u	25CrMoS4	1.7213

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
25CrMoS4	25CrMoS4	1.7213

25CrMoS4 Corresponding Standards(Same grade name, different standards)

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