강철 급료
304N, 310S, S32305, S32304, 347, 309S, 409L, 904L, 444, 317L, S32506, S32520, S32550, S32750, S32760, N08020, N08367, N08700, N08800, N08810, N08904, S20910, S21400, S31050, 알로이 20, UNSN08367, AL-6XN, 25-6HN, 6Mo, UNS N08020, Incoloy020, Alloy20Cb-3