HIGH-STRENGTH TWO-PHASE STAINLESS STEEL FOR ROLLING STOCK EXCELLENT IN YOUNG'S MODULUS AND CORROSION RESISTANCE

摘要

PURPOSE:To improve Young's modulus and corrosion resistance and to prevent deterioration in strength in a weld zone after welding by limiting respective amounts of C, Si, N, Cr, Ni, Cu and Mo and the value of Nibal represented by a specific expression. CONSTITUTION:The titled stainless steel consists of, by weight, =0.05% C, 1-5% Si, 3-10% Mn, 17-22% Cr, 1-7% Ni, 0.5-3% Cu, 0.5-3% Mo and the balance Fe and has a Nibal value of -12--6. The above Nibal value is represented by -1.1{Cr(%)+1.5XSi(%)+0.5XMb(%)+Mo(%)}+30{C(%)+N (%)}+0.5XMn(%)+0.3XCu(%)+Ni(%)+8.2.