Copper-coated 1% Nickel solid TIG wire. WB6513 is a solid wire for the welding of high strength, low-temperature steels such as A333 Grade 6 or equivalent, with excellent notch toughness values down to 60°c. The Nickel content of WB6513 is such that compliance with N.A.C.E. specification is ensured. The balanced Manganese and Silicon ensures optimum deoxidisation and weld fluidity. Can also be used for the welding of weathering steels, such as Cor-Ten A and Cor-Ten B.