M4 High Speed Steel / HS 6-5-4 / E M4 / SKH 54

M4 is an extremely versatile high-speed steel with its extremely high carbon and vanadium contents for exceptional abrasion-resistance. It is well suited for premium cutting tools of all types, particularly those used for machining abrasive alloys, castings and heat-treated materials. The high carbon content enables M4 steel to be hardened in excess of 65HRC. However, the high hardness and high vanadium carbide content make it more difficult to grind after heat treatment compared to M2 and other high-speed steels.

Other Known Names: HS 6-5-4, E M4, SKH 54, Stark.

भौतिक गुण

घनत्व

0.288 एलबी / में³ (7972 किलो / मी³)

विशिष्ट गुरुत्व

7.97

Modulus Of Elasticity

30 एक्स 10⁶ psi (207 GPa)

मशीन की

35-40% of a 1% carbon steel

M4 High Speed Steel Chemical Composition

M4 High Speed Steel Heat Treating