HM7 1.3348（VDEh） SKH58（JIS）

Grade	HM7
AISI American Iron and Steel Institute	M7
Other Names
Classification	Tool Steel

HM7 Chemical Element Composition Content (%)

Component	C	Cr	Mo	W	V
Nominal Value	1	4	8.5	1.5	2

HM7 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Steel:	Quenching: 1190-1210°C Tempering: 540-580°C	HRC：63-66
Steel:	Annealing	HB：＜255

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