I-wire ye-Constatan yesampulu yesampulu yi-nowckel-nickel alloy ihlala inama-55% eepesenti kunye ne-45% i-nickel. Eyona nto iphambili kuyo kukuxhathisa kwayo okuhlala rhoqo kuluhlu lobushushu. Ikwabizwa ngokuba yi-Alloy 294, i-Nico, i-MWS-294, ikomityi, uCeloy 45, Cuni 44, Cani 44, CN49.