HAYNES HR-120 alloy is a solid-solution-strengthened high-strength heat-resistant alloy with very good resistance to carburizing and sulfidizing environments. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: Ni-395. Producer or source: Haynes International Inc..