2 2 2 DUPLEX STAINLESS STEEL DUPLEX STAINLESS STEEL SLAB AND DUPLEX STAINLESS STEEL MATERIAL

摘要

One aspect of the two-phase stainless steel is a ferritic stainless steel having a composition of 0.03% or less of C, 0.05 to 1.0% of Si, 0.1 to 7.0% of Mn, 0.05% or less of P, 0.0001 to 0.0010% The balance of Fe and inevitable impurities, and the balance of Fe and inevitable impurities, and the balance of Cr and Fe, , The ratio Ca / O of the contents of Ca and O is 0.3 to 1.0, and the formula index PI represented by the formula (1) is less than 30. [Equation 1]