VASCO VANADIUM TYPE BB is a high carbon, chromium-vanadium alloy steel of the water-hardening or oil-hardening type having high wear resistance combined with toughness. It has good depth hardenability for a water-hardening steel. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-128. Producer or source: Vanadium Alloys Steel Corporation.