Abstract
The term “corrosion resistant alloys” (CRA’s) covers a wide range of materials from ferritic stainless steels to nickel base or titanium alloys. Nickel, chromium and molybdenum contents increase steadily as we progress from ferritic, duplex, super-duplex, austenitic, 6% or 7% molybdenum super-austenitic stainless steels to nickel-chromium-molybdenum-tungsten alloys. As this progression is made the corrosion resistance, and cost, increase dramatically. A definitive ranking of the general and localized corrosion resistance of these materials in a variety of environments is provided, with special emphasis on effects of welding and choice of filler metals.
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2009
Association for Materials Protection and Performance (AMPP)
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