| 摘要 |
<p>The present invention offers a boron-containing stainless steel which has excellent hot workability and weldability, while having good surface properties. A boron-containing stainless steel of the present invention is characterized by containing 0.001-0.15 mass% of C, 0.1-2 mass% of Si, 0.1-2 mass% of Mn, 5-25 mass% of Ni, 11-27 mass% of Cr, 0.05-2.5 mass% of B, 0.005-0.2 mass% of Al, 0.0001-0.01 mass% of O, 0.001-0.1 mass% of N and 0.005 mass% or less of S, while containing 0.0001-0.005 mass% of Mg and/or 0.0001-0.005 mass% of Ca. The boron-containing stainless steel of the present invention is also characterized in that some of Si, Al, Mg, Ca and S are contained in the form of non-metallic inclusions that are formed of sulfides and/or oxysulfides.</p> |
