Alloy 625 (UNS N06625) o se nickel-chromium-molybdenum faʻatasi ma se faʻaopoopoga o le niobium. O le faʻaopoopoga o le molybdenum o loʻo galue faʻatasi ma le niobium e faʻamaʻaʻaina le matrix alloy, e maua ai se malosi maualuga e aunoa ma se faʻamalosia togafitiga vevela. O le u'amea e tetee atu i le tele o si'osi'omaga pala ma e lelei le tete'e atu i pitting ma clevice corrosion. Alloy 625 o loʻo faʻaaogaina i le gaosiga o vailaʻau, aerospace ma le gataifale inisinia suauʻu & kesi, faʻaogaina o mea faʻaleagaina ma masini faaniukilia.