HAYNES STELLITE Alloy No. 12 is a cobalt-base alloy having high heat and corrosion resistance with excellent wear and abrasion resistance. It will withstand moderate shock and impact. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: Co-30. Producer or source: Haynes Stellite Company.