ʻO ka Alloy 625 (UNS N06625) he nickel-chromium-molybdenum alloy me ka hoʻohui o ka niobium. ʻO ka hoʻohui o ka molybdenum e hana me ka niobium e paʻakikī i ka matrix alloy, e hāʻawi ana i ka ikaika kiʻekiʻe me ka ʻole o ka hoʻoikaika ʻana i ka wela. Kūleʻa ka alloy i kahi ākea ākea o nā kaiapuni corrosive a he kūpaʻa maikaʻi i ka pitting a me ka crevice corrosion. Hoʻohana ʻia ʻo Alloy 625 i ka hana kemika, aerospace a me ka ʻaila ʻenekinia moana a me ke kinoea, nā mea hoʻomalu pollution a me nā reactors nuklea.