PM M4 high speed tool steel is a flexible steel that provides a unique combination of high wear-resistance with high impact toughness and bend strength, which are results of the fine grain size, small carbides and superior cleanliness of the steel. PM M4 offers improved cutting tool life compared to conventionally-wrought M1, M2, M7 and other lower-alloyed high-speed steels. It excels in cold work tooling applications, outlasting high-carbon, high-chromium die steels such as D2 and D3.
Other Known Names: CPM REX M4 steel®, ASP 2004, S690
Griggs Steel Color Code:Yellow
Broaches, End Mills, Punches, Hobs, Fine Blanking, and Forming Dies.
0.286 lb/in3 (7806 kg/m3)
Modulus Of Elasticity
31 x 106 psi (214 GPa)
40-45% of a 1% carbon steel