constantan wire/CuNi44 is better resistance to corrosion, better malleability,better solderability.
Constantan wire/CuNi44 Alloy Wire/sheet/ribbbon/flat wire/stripconstantan resistance alloy wire Material: CuNi1, CuNi2, CuNi6, CuNi8, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi40,CuNi44. Constantan Wire/Rod/Bar diameter: 0.02mm-30mm Strip thickness: 0.1mm-5mm width: 5mm-200mm copper nickel Alloys Wire/Strip/Sheet Principally destined for the manufacturing of low temperatures electric resistances so as heating cables, shunts, resistances for automobile, they have a maximum operating temperature of 752°F. They do not therefore intervene in the field of resistances for industrial furnaces. Those are alloys of chemical composition copper + nickel with addition of manganese with a low resistivity (from 231.5 to 23.6 Ohm.mm2/ft).
CuNi44 wire/constantan wire