INCONEL alloy 751 is a high-strength, high-temperature nickel-chromium alloy. It is essentially the same as INCONEL alloy X-750, except that its slightly modified composition imparts increased rupture properties at 1600 F. It is used for diesel engine exhaust valves. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as creep and fatigue. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-116. Producer or source: Huntington Alloy Products Division, An INCO Company.