Stainless steel with excellent corrosion resistance to molten salt and process for producing this steel

摘要

PCT No. PCT/JP94/01883 Sec. 371 Date Jul. 10, 1995 Sec. 102(e) Date Jul. 10, 1995 PCT Filed Nov. 8, 1994 PCT Pub. No. WO95/13404 PCT Pub. Date May 18, 1995A stainless steel excellent in fused-salt corrosion resistance having a composition specified in weight per cent including not more than 0.1% of C, not more than 2.0% of Mn, not less than 7.5% and less than 15.0% of Ni, 14.0-20.0% of Cr, more than 0.2% and not more than 4.0% of Si, and 1.0-4.0% of Al, and in some cases also including one or more of not more than 3.0% of Cu, not more than 3.0% of Mo, not more than 1.0% of Ti, not more than 1.0% of Zr, not more than 0.5% Y, and not more than 0.5% of REM, and satisfying the relationship Si%/Al%/=1.0, the balance being Fe and unavoidable impurities.