VISCOUNT 20 is an air-hardening, 5% chromium hot-work steel with the same analysis as Latrobe's VDC except for the addition of carefully controlled and evenly dispersed alloy sulfides. These additives improve the machinability of the steel so that it is an excellent selection for a variety of hot-work applications where machinability is of primary importance. Its many uses include forging and heading dies, aluminum extrusion dies, mandrels and mold dies for plastics. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-446. Producer or source: Latrobe Steel Company.