AUSTENITIC STAINLESS STEEL EXCELLENT IN NITRIC ACID CORROSION RESISTANCE AFTER COLD WORKING OR DEFORMATION

摘要

PURPOSE: To provide an austenitic stainless steel excellent in nitric acid corrosion resistance after cold working or deformation. ;CONSTITUTION: This steel is an austenitic stainless steel which has a composition consisting of, by weight, ≤0.02% C, ≤0.8% Si, 0.05-2.0% Mn, ≤0.04% P, ≤0.03% S, ≤0.1% Al, ≤0.3% Cu, 6-22% Ni, 13-27% Cr, 0.02-0.10% N, and the balance Fe with inevitable impurities, satisfying 1.5Ni+Mn+65(C+N)-5Si+2.5≥Cr≥52-2.3(Ni+Mn)-200(C+N), and further satisfying, preferably, 3.8Ni+3.3 Mn+265(C+N) -5Si-49.5≥10.;COPYRIGHT: (C)1994,JPO&Japio