Hiki ke hoʻohanaʻia nā bolstel 625 bolts i nāʻano o nā wahi o nā'ōkuhi ma muli o ko lākou hiki ke pale aku i ka strosionion a me ka paleʻana i ka corrosion. I nā noi aloha e like me ka atmospheic, hou a iʻole ka wai paʻakai a iʻole ka paʻakai a me nā mea hana alkaline. I loko o nā hihia koʻikoʻi,ʻo Nickel a me nā leka uila a Chromium e hāʻawi i ka paleʻana i ka paleʻana i nā mea kanu. ʻO nā mea kūʻai akuʻo Inconoel 625 e paleʻia i nā wahiʻoleʻole o ka one-oxidizing.