A COMPONENT FOR SUPERCRITICAL WATER OXIDATION PLANTS, MADE OF AN AUSTENITIC STAINLESS STEEL ALLOY

摘要

An austenitic stainless steel alloy component for use in supercritical water oxidation (SCWO) plants comprises 15-30 wt.% chromium and 20-35 wt.% nickel. The component is intended to be in direct contact with supercritical or near supercritical solution. It may further comprise 0.5-6.0 wt.% copper, 0.01-0.10 wt.% carbon, not 4.0 wt.% molybdenum, 0.2-0.6 wt.% niobium, 0.4-4.0 wt.% tungsten, 0.10-0.30 wt.% nitrogen, 0.5-3 wt.% cobalt, and 0.02-0.10 wt.% titanium. An independent claim is included for use of an austenitic stainless steel alloy comprising 15-30% chromium (Cr) and 20-35% nickel (Ni) in supercritical water oxidation plants.