Copper nickel alloy, he haʻahaʻa ka uila resisitance, maikaʻi ka wela a me ka corrosion-kūʻē, maʻalahi ke hana a me ke alakaʻi welded. Hoʻohana ʻia ia e hana i nā ʻāpana koʻikoʻi o ka relay overload thermal, haʻahaʻa haʻahaʻa haʻahaʻa thermal circuit breaker, a me nā mea uila. He mea koʻikoʻi nō hoʻi ia no ke kaula hoʻomehana uila. Ua like ia me s type cupronickel. ʻO ka nui o ka haku mele ʻana o Nickel, ʻoi aku ka nui o ke kālā keʻokeʻo o ka ʻili.