JESSOP G.34 is a cobalt-base casting alloy recommended for use where very high resistance to creep, fatigue, and thermal shock is necessary. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep and fatigue. It also includes information on casting, heat treating, machining, and surface treatment. Filing Code: Co-12. Producer or source: Wm. Jessop & Sons Ltd.