LSS 2714 is a hot-work steel with resistance to softening and good toughness. 2714HT is the same steel available as aged. The alloy is used to replace AISI 4140 and 4340. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating and machining. Filing Code: TS-668. Producer or source: Latrobe Specialty Steel Company.