CuNi 44( constantan)--- Copper 55%, nickel 45%. Thickness: 0.1mm to 3mm Width: 0. ... . Heating Resistance Alloy, Nickel Chromium Alloy, Nickel Iron Alloy, Nickel Copper Alloy, Iron Chrome Alumium Alloy, Kovar, Invar, Nichrome, Soft Expension ... , Alloy Plate, Heating elementsFine Wire, Tankii Produce. Constantan/CuNi44/Copel/Copper nickel alloy strip 02