| 摘要 |
PURPOSE: To produce a stainless steel excellent in hot workability and molten salt corrosion resistance. CONSTITUTION: This stainless steel has a compsn. contg. 0.03 to 0.1% C, <=2.0% Mn, <=0.02% N, 10 to 15% Ni, 14.0 to 20.0% Cr, 0.2 to 1.5% Si, 0.5 to 4.0% Al and 0.0005 to 0.05% B, and the balance substantial Fe. If required, it may contain <=0.5% Ti and <=0.5% La as well. Furthermore, the relationship of, by atomic ratio, Al%/N%>=4 is preferably valid between the Al content and the N content. Thus, it is used as the material suitable for structural materials, parts or the like exposed to a severe high temp. corrosive atmosphere such as a separator for a molten carbonate type fuel battery. |
