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Alloy 20 Nickel Chromium Stainless Steel

Alloy 20 is a nickel–chromium–molybdenum stainless steel alloy great for applications involving sulfuric acid. Other uses include the chemical, food, pharmaceutical, power generation, and plastics industries due to its corrosion resistance. Alloy 20 resists chloride ion corrosion and its copper content protects it from sulfuric acid. Alloy 20 is not a stainless steel but a nickel alloy (ASTM).

Provides excellent resistance to stress-corrosion cracking and to hot sulfuric acid; weldable, machinable and cold formable; best corrosion resistance of all stainless steel grades.

Approximately 34% nickel, 20% chromium.

Features of Alloy 20 Nickel Chromium Stainless Steel

  • Excellent resistance to sulfur acid
  • Resistant to intergranular corrosion in the as-welded condition
  • Great material for chloride stress corrosion, and highly tolerable to cracking

Applications for Alloy 20 Nickel Chromium Stainless Steel

  • Bubble caps
  • Great heat exchanger
  • Phosphate coating drums and racks
  • Sulfuric acid pickling tanks, racks and heating coils
  • Process piping
  • Mixing Tanks
  • Chemical and petroleum processing equipment

 

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