Alloy 625 (UNS N06625) ni nikel-chromium-molybdenum ivanze hiyongereyeho niobium. Kwiyongera kwa molybdenum ikorana na niobium kugirango ikomere matrike ya alloy, itanga imbaraga nyinshi zidakomeje kuvura ubushyuhe. Amavuta arwanya ibintu byinshi byangirika kandi afite imbaraga zo kurwanya imyobo no kwangirika. Alloy 625 ikoreshwa mugutunganya imiti, icyogajuru hamwe n’amavuta yo mu nyanja ya peteroli na gaze, ibikoresho byo kurwanya umwanda hamwe n’ibikorwa bya kirimbuzi.