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Stainless Steel Alloy 321

Special Alloys > Stainless Steel Alloy 321

Stainless Steel Alloy 321 is an austenitic stainless steel. It’s most of the qualities match with Type 304, apart from high level of carbon and titanium. It proffers an excellent oxidation and corrosion property to metal fabricators and also shows good strength at very low temperatures.

Other properties of Type 321 Stainless Steel:

  • Good welding and forming ability
  • Performs well up to about 900°C


  • In making annealing covers
  • In making high-temp tempering devices
  • In chemical processing equipment
  • Firewalls Systems
  • Boiler Casings
  • Superheaters equipment
  • Gas and oil refinery equipment

Chemical Composition-

  • Chromium- Between 17-19%
  • Nickel- Between 9-12%
  • Silicon- Up to 0.75%
  • Iron- Up to 0.08%
  • Titanium- Up to 0.70%
  • Phosphorus- Up to .040%
  • Sulfur- Up to .030%

We supplies Stainless Steel Alloy 321 in a wide range of forms and sizes for instance bars and sheets.  Our alloy products meet all standards of different industries where stainless steel is employed like ASTM, UNS, DIN, and EN.

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