IMPAX SUPREME is a vacuum degassed chromium-nickel-molybdenum steel, manufactured to consistently high quality. It is ideally suited to the production of molds and dies for plastics processing. (Supercedes UHB IMPAX P20, Alloy Digest TS-326, October 1977.) This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on heat treating, machining, and joining. Filing Code: TS-497. Producer or source: Uddeholm Corporation.

IMPAX WELD COATED ELECTRODE and IMPAX TIG-WELD TIG FILLER ROD give a deposited weld metal almost identical in composition to IMPAX SUPREME parent metal. Both the electrode and the filler rod are also suitable for welding standard AISI P20 tool steel grades and Uddeholm Holder grades. Composed to be compatible with Uddeholm Mold Steel Impax Supreme, Alloy Digest TS-497, March 1989. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on joining. Filing Code: TS-505. Producer or source: Uddeholm Corporation.

UHB IMPAX P20 is a chromium-nickel-molybdenum tool steel for molds. It is supplied in the prehardened condition, so that the mold cavity can be machined and the mold placed directly in service. It is used for molds for plastics and die-casting molds for zinc, lead and tin alloys. (See update, IMPAX SUPREME, Alloy Digest TS-497, March 1989.) This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-326. Producer or source: Uddeholm Aktiebolag.