HAYNES alloy No. 625 is a nickel-chromium-molybdenum high-strength alloy with excellent corrosion and oxidation resistance. It resists stress-corrosion cracking, pitting and intergranular attack. It is useful to about 1800 F. 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 forming. Filing Code: Ni-354. Producer or source: Haynes International Inc..