| 摘要 |
PURPOSE:To provide high weldability and hot workability to an austenitic high- alloy stainless steel with high corrosion resistance by adding proper amounts of Al, Ca and V to the steel contg. much Cr, Ni, Mo and N. CONSTITUTION:The composition of an austenitic high-alloy stainless steel is composed of, by weight, <0.06% C, 0.1-1% Si, <2% Mn, 15-35% Cr, 10-40% Ni, 0.5-7% Mo, 0.05-0.4% N, 0.01-0.1% Al, 0.001-0.02% Ca, 0.05% V and the balance Fe with inevitable impurities. The weldability and hot workability are further improved by adding <0.1% REM and/or <0.01% B besides said elements.
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