Waya wa Constantan wokhala ndi mphamvu yolimbana ndi kutentha pang'ono komanso mphamvu yotsika yolimbana ndi kutentha kwambiri komanso mphamvu yolimbana ndi kutentha kwambiri kuposa "manganins". Constantan imasonyezanso kukana dzimbiri bwino kuposa ma genins a man. Ntchito zake nthawi zambiri zimakhala zochepa pa ma ac circuits.
Waya wa Constantan ndi chinthu choyipa cha mtundu wa J thermocouple pomwe Iron ndiye chinthu chabwino; ma thermocouple a mtundu wa J amagwiritsidwa ntchito pochiza kutentha. Komanso, ndi chinthu choyipa cha mtundu wa T thermocouple yokhala ndi OFHC Copper chomwe ndi chabwino; ma thermocouple a mtundu wa T amagwiritsidwa ntchito pa kutentha kwa cryogenic.