HASTELLOY alloy H-9M is especially designed for enhanced resistance to pitting and crevice corrosion attack. It is resistant to failure by stress-corrosion cracking in general and to hydrogen/hydrogen sulfide stress cracking in particular. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-365. Producer or source: Haynes International Inc..