THYROTHERM 2799 is a maraging tool steel with extremely low heat treat distortion and high resistance to thermal shock and excellent weldability. The alloy also possesses resistance to heat checking a high work temperatures. This datasheet provides information on composition, physical properties, and hardness as well as creep and fatigue. It also includes information on heat treating, machining, joining, and surface treatment. Filing Code: TS-511. Producer or source: Thyssen Specialty Steels Inc..