incoloy 825 hardness

Hastelloy C22

Corrosion resistant alloys for industries with specific demands

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Description

What is Hastelloy C22?

Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic. This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such “upset” conditions occur frequently.

Hastelloy C22 equivalent

  • ASTM B366
  • ASTM B564
  • ASTM B574
  • ASTM B575
  • ASTM B619
  • ASTM B622
  • DIN 2.4602
  • UNS N06022
What is the difference between Hastelloy C22 and C276?
The major difference between Hastelloy C22 and C276 is that the Hastelloy C22 is very important due to its enhanced versatility and exceptional resistance to chloride-induced pitting whereas the Hastelloy C276 is very important due to its proven performance in a wide range of aggressive chemicals.
Is Hastelloy C compatibility with sulfuric acid?
HASTELLOY” alloy B-2 is a nickel-base wrought alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures. It also withstands hydrogen chloride, sulfuric, acetic and phosphoric acids. … Alloy C-22 has outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking.

 

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