Ko te konganuku nika he tino pumau i roto i te hau, he kaha te kaha o te haere, ka taea te hanga i te kiriata passivation tino kikokore i roto i te rangi, ka taea te aukati i te waikura o te alkali me te waikawa, kia noho matū te hua i roto i te mahi me te taiao kawakore, kaore i te ngawari ki te whakakore, ka taea kia oxidized ki runga ake i te 600℃; Ko te paparanga nickel whakakikorua he kaha te piri, e kore e ngawari ki te taka; Ko te paparanga nickel whakakikorua ka kaha ake te mata o te rauemi, ka taea te whakapai ake i te kakahu o te hua me te waikawa me te waikura alkali, te kakahu o te hua, te waikura, te mahi aukati waikura he pai rawa atu.