21CrMoV5-7 1.7709 - EN 10269-2006

Grade	21CrMoV5-7
European Standard Steel Grade	1.7709
Corresponding Standard	EN 10269-2006 Steels and Nickel Alloys for Fasteners with Specified Elevated and/or Low Temperature Properties
Classification	Alloy Steel
Properties	Quench Hardness
Density	7.85 g/cm³

21CrMoV5-7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	V	Al
Minimum Value	0.17	-	0.4	-	-	1.2	-	0.55	0.2	-
Maximum Value	0.25	0.4	0.8	0.025	0.03	1.5	0.6	0.8	0.35	0.03

①Elements not listed in this table may not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the usefulness of the steel.

1 Approximate Comparison Table Structural Alloy Steel

China	Germany		European Standard		United Kingdom
YB	DIN EN/DIN	W-Nr.	EN	Numerical Grade	BS EN/BS
25Cr2MoV	21CrMoV5-7	1.7709	21CrMoV5-7	1.7709	21CrMoV5-7

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	European Standard
GB	EN
ML20CrMoV	21CrMoV5-7

21CrMoV5-7 Corresponding Standards(Same grade name, different standards)

1	EN 10269-2006
	21CrMoV5-7 1.7709
2	EN 10269-2013
	21CrMoV5-7 1.7709
3	NF EN 10269-1999
	21CrMoV5-7 1.7709
4	DIN EN 10269-2014
	21CrMoV5-7 1.7709
5	DIN 17240-1976
	21CrMoV 5-7 1.7709

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