Nickel alloy 825 paipu ti ko ni oju jẹ paapaa sooro si imi-ọjọ ati phosphoric acid. Ti a mọ bi WNR 2.4858 pipe pipe, irin alloy nickel yii ni a lo ni iṣelọpọ kemikali, ohun elo iṣakoso idoti, epo ati gaasi fifin daradara, atunṣe epo iparun, iṣelọpọ acid ati ohun elo gbigbe.