Böhler (or Boehler) S630 tungsten-molybdenum HSS material similar with aluminum (similar to M2) has excellent toughness and cutting properties. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-738. Producer or source: Böhler Edelstahl GmbH & Company KG.