S7-4-2-5 1.3246 - DIN 17350-1980

Grade	S7-4-2-5
Germany W-Nr.	1.3246
Corresponding Standard	DIN 17350-1980 Tool steels; technical terms of delivery
Classification	Tool Steel

S7-4-2-5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	W	V	Co
Minimum Value	1.05	-	-	-	-	3.8	3.6	6.6	1.7	4.8
Maximum Value	1.15	0.45	0.4	0.03	0.03	4.5	4	7.1	1.9	5.2

S7-4-2-5 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Steel	Softening Annealing	240~300
Steel	Quenching + Tempering	≥66HRC；≥910HV

1 Approximate Comparison Table High-Speed Steel 1

China	Japan	United States	International Organization for Standardization	Germany		France	Russia
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST
W7Mo4Cr4V2Co5	MH41	M41	HS7-4-2-5	S7-4-2-5	1.3246	Z110WKCDV07-05-04-04-04	Р6М5К5

2 Approximate Comparison Table High-Speed Steel 2

China		United States		International Organization for Standardization	Germany		France	United Kingdom
GB	ISC	ASTM	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	BS EN/BS
W7Mo4Cr4V2Co5	T77445	M41	T11341	HS 7-4-2-5	S 7-4-2-5	1.3246	HS 7-4-2-5	HS 7-4-2-5 BM41

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