AISI M42 Steel Round Bar Sheet Plate, JIS SKH59, DIN 1.3247

M42 tool steel is high-speed steel with high cobalt. And it also is called JIS SKH59 and DIN 1.3247 steel. It is mainly used for high toughness precision, wear-resistant hardware, cold stamping die and cutting tools. It has high toughness and hardness could reach to 70HRC. Its hot hardness is high and easy to grind and cut. The cutting tools which are made of M42 steel can cut cast superalloys, titanium alloys, and ultra-high-strength steels. It is used widely to manufacture high precision and complex cutting tools because of its great grinding properties. M42 Steel round bar sheet plateproperties and chemical composition as below.

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M42 Steel Grade Equivalent Chart

Country USA Germany/UK/France JAPAN ISO
Standard ASTM A600-92a EN ISO 4957-1999 JIS G4403: 2006 ISO 4957-1999
Grades M42(t11342) HS 2-9-1-8 SKH59 HS 2-9-1-8
Delivery condition:In annealing (≤269HB), or after heat treatment (65.5-68.5HRC). Quality control:100% UT (Ultrasonic Testing), UT Standard is SEP 1921-84 C/c.

Certificate & SGS Report

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