ʻO ke kila kila he pūʻulu ferrous alloys i loaʻa ka liʻiliʻi ma kahi o 11% chromium, kahi ʻano hana e pale ai i ka hao mai ka ʻōpala a hāʻawi pū i nā waiwai pale wela.ʻO nā ʻano like ʻole o ke kila kila nā mea kalapona (mai 0.03% a ʻoi aku ma mua o 1.00%), nitrogen, aluminika, silikoni, sulfur, titanium, nickel, copper, selenium, niobium, a me molybdenum.Hoʻonohonoho pinepine ʻia nā ʻano kila kuhiliʻole e kā lākou AISI helu helu ʻekolu, e laʻa, 304 stainless.