Wieland-L25 is a copper-nickel alloy used almost exclusively as a coining alloy. It shows little variation in its electrical conductivity. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as deformation. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CU-682. Producer or source: Wieland Metals Inc., Wieland-Werke AG.