Jessop-Saville H.27 is a medium carbon, chromium-molybdenum nitriding steel recommended for components subjected to heavy stresses and severe wear, such as crankshafts and air-screw shafts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-164. Producer or source: Jessop-Saville Ltd, Brightside Works.