METHOD FOR IMPROVING STAINLESS STEEL RESISTANT TO JAPANESE RICE WINE (SAKE)

摘要

PURPOSE: To obtain stainless steel hardly leaching Fe ions even when used in sake-contg. environment and not discoloring sake by improving the sake resistance of 18Cr-8Ni stainless steel utilized for food appliances, etc. ;CONSTITUTION: Stainless steel consisting of, by weight, ≤0.08% C, ≤1.0% Si, ≤0.7% Mn, ≤0.04% P, ≤0.005% S, 8.0-10.50% Ni, 18.0-20.0% Cr, 0.10-0.40% Mo, 0.10-0.30% Cu and the balance Fe is pickled in an aq. HNO₃ soln. or successively pickled in an aq. NHO₃+NH₄F soln. and an aq. HNO₃ soln. to improve the sake resistance of the stainless steel.;COPYRIGHT: (C)1993,JPO&Japio