MoldMax HH is a part of a family of copper based alloys that are trade named MoldMax and PROtherm. These alloys are processed to provide an optimal combination of hardness and thermal conductivity and are specified in a variety of injection and blow mold tooling applications. The HH grade is the premier copper mold alloy supplied by the producer. This alloy has hardness and strength comparable with standard tool steels but its thermal conductivity is at four to six times higher. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion andwear resistance, and surface qualities as well as forming, machining, and joining. Filing Code: Cu-823. Producer or source: Materion Brush Performance Alloys.