Alloy C-22, Hastelloy C-22

Alloy C22 bar, Alloy C22 plate, Alloy C22 plate, Alloy C22 tubing

HASTELLOY Alloy C-22 (UNS N06022) is a typical nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. Alloy C22 display excellent resistance to pitting and corrosion and excellent resistance to oxidizing atmospheres up to 1040°C. HASTELLOY C-22 has excellent stress corrosion resistance, which is better than C-4 and C-276 in the oxidizing medium. LKALLOY mainly stocks and produces Hastelloy C22 plate, Hastelloy C22 sheet, Hastelloy C22 bar and other forms in various size and specifications.

Available Forms And Specifications

Sheet / Plate / Strip:  ASTM B575
Seamless Pipe / Tube: ASTM B622
Welded Pipe / Tube: ASTM B619; ASTM B626

Round / Flat bar: ASTM B574 Bar
Fittings: ASME SB-366
Forgings: ASME SB-564

Chemical Composition

Remainder20.0-22.512.5-14.52.5-3.52.5 max0.02max0.02max0.35max5.5

Mechanical Properties

Density, g/c㎡8.69
Melting range, ℃1325-1370
Tensile strength, min, Mpa690
Yield strength, 0.2% offset, min, Mpa310
Elongation, %, min45
Hardness, Rockwell/


Hastelloy C22 offers exceptional resistance to strong solutions of oxidizing salts, selected for resistance to wet chlorine gas, hypo-chlorites and many other aggressive chemicals. It’s also ideal for chemical processing such as arduous areas of flue gas desulphurization plants, critical components in sewage treatment, chemical and petrochemical plants; waste incineration, sour gas production and organic acid processing

LKALLOY is a leading supplier of Hastelloy C22 and other high-quality special metal alloys with decades of experience and extensive specifications. To buy or learn more about Alloy C22, contact us now.

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