NICKEL-CHROM-MOLYBDAEN-LEGIERUNG

• Main Authors: WALLIS, ERNST., 6236 ESCHBORN, DE, ROCKEL, MANFRED. DR., 6382 FRIEDRICHSDORF, DE, HEUBNER, ULRICH. DR., 5980 WERDOHL, DE, KOEHLER, MICHAEL. DR., 6370 OBERURSEL, DE
• Format: Patent
• Language: German
• Published: 14.09.1989
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The use of an alloy containing 22.0 to 24.0% of chromium, 15.0 to 16.5% of molybdenum, up to 0.3% of tungsten, up to 1.5% of iron, up to 0.4% of vanadium, 0.1 to 0.4% of aluminium, 0.001 to 0.04% of magnesium and 0.001 to 0.01% of calcium, the remainder being nickel and including unavoidable accompanying elements and impurities, is proposed for the production of structural components which have very good resistance to material-removing corrosion and to pitting corrosion and crevice corrosion under very severe corrosive conditions, as prevail in present-day chemical process engineering and in current environment protection technology, such as, for example, in flue gas desulphurisation plants or plants for concentrating sulphuric acid, and which should be capable of being produced economically and without problems by hot-working and cold-working.