SUPRA 50 is a soft magnetic alloy with close to 50% nickel. It typically runs 47.5 Ni; 0.5 Mn, 0.1 Si; and 0.005 C This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming and heat treating. Filing Code: Fe-167. Producer or source: Lamineries Matthey SA.