Ampcoloy 944 was developed for plastic tooling and has a hardness greater than 285 HB, a high thermal conductivity, with good machinability and polishability. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance as well as forming and machining. Filing Code: CU-785. Producer or source: AMPCO Engineered Alloys.