| 摘要 |
<p>This stainless steel includes, by mass %, C of 0. 020% or less, N of 0. 020% or less, Si of 0. 01 to 1. 0%, Mn of 0. 01 to 0. 5%, P of 0. 04% or less, S of 0. 01% or less, Cr of 16. 0% to 23. 0%, Mo of 0. 30 to 3. 00%, Ni of 0. 30 to 3. 00%, and further includes one or more kinds of Ti of 0. 05 to 0. 25% and Nb of 0. 05 to 0. 40%, and a balance of Fe and inevitable impurities. In this stainless steel, the index of rust streaks RI satisfies the following formula (A) and the index of pitting corrosion PI satisfies the following formula (B). RI=Mo+LogNi≥0…(A) PI=Cr+3. 3Mo≥19…(B).</p> |
