CPM REX M2HS, produced by the Crucible Particle Metallurgy (CPM) Process, is an improved-quality product. The CPM process allows an increased sulfide content for better machinability in the annealed temper and grindability in the heat-treated condition. This datasheet provides information on composition, physical properties, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-535. Producer or source: Crucible Specialty Metals Division, Colt Industries.