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Description:
Alloy 20 was designed specifically to withstand sulfuric acid. Its nickel, chromium, molybdenum and copper levels all provide excellent general corrosion resistance. Restricted carbon plus columbium stabilization permits welded fabrications to be used in corrosive environments, normally without post-weld heat treatment. At 33% nickel, Alloy 20 has practical immunity to chloride stress corrosion cracking. This alloy is often chosen to solve SCC problems, which may occur with 316L stainless.
Features
Excellent resistance to hot sulfuric acid
Resistant to intergranular corrosion in the as-welded condition
Chloride stress corrosion cracking resistance
Sulfuric acid pickling tanks, racks and heating coils
Phosphate coating drums and racks
Heat exchangers
Bubble caps
Process piping
Mixing tanks
Chemical and petroleum process equipment
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