ʻO kēia mea hoʻohuihui keleawe-nickel, i ʻike ʻia hoʻi ʻo constantan, ua hōʻailona ʻia e ke kū'ē uila kiʻekiʻe i hui pū ʻia me kahi coefficient mahana liʻiliʻi o ke kū'ē. Hōʻike pū kēia mea hoʻohuihui i ka ikaika tensile kiʻekiʻe a me ke kū'ē ʻana i ka pala. Hiki ke hoʻohana ʻia i nā mahana a hiki i ka 600°C i ka lewa.
He hui keleawe-nickel ʻo CuNi44 (hui CuNi) meke kū'ē haʻahaʻa waenano ka hoʻohana ʻana i nā mahana a hiki i 400°C (750°F).
Hoʻohana pinepine ʻia ʻo CuNi44 no nā noi e like me nā kaula hoʻomehana, nā fuses, nā shunt, nā resistors a me nā ʻano mea hoʻokele like ʻole.