| 摘要 |
Provided is an austenitic stainless steel having excellent surface glossiness. The austenitic stainless steel contains, on the basis of percent by mass, Si from 0.2 to 2.0%, Mn from 0.3 to 5.0%, S at 0.007% or less, Ni from 7.0 to 15.0%, Cr from 15.0 to 20.0%, Al at 0.005% or less, Ca at 0.002% or less, Mg at 0.001% or less, and O from 0.002 to 0.01%, wherein the remainder comprises Fe and unavoidable impurities. The value of (Mn + Si)/Al among Mn, Si, and Al is 200 or more. The oxide-based nonmetallic inclusion consists mainly of MnO-SiO 2 -Al 2 O 3 -CaO, where Al 2 O 3 is 30% by mass or less, Cr 2 O 3 is 5% by mass or less, and MgO is 10% by mass or less. In a sulfide-based nonmetallic inclusion, the maximum area of one sulfide is 100 µm 2 or less. |
