Alloy C-22, Hastelloy C-22

Alloy C-22 bar, Alloy C-22 plate, Alloy C-22 plate, Alloy C-22 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 C-22 displays 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 C-22 plate, Hastelloy C-22 sheet, Hastelloy C-22 bar, and other forms in various sizes 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

Ni Cr Mo W Co P S V Fe
Remainder 20.0-22.5 12.5-14.5 2.5-3.5 2.5 max 0.02max 0.02max 0.35max 5.5

Mechanical Properties

Density, g/c㎡ 8.69
Melting range, ℃ 1325-1370
Tensile strength, min, Mpa 690
Yield strength, 0.2% offset, min, Mpa 310
Elongation, %, min 45
Hardness, Rockwell /


Hastelloy C-22 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 C-22 and other high-quality special metal alloys with decades of experience and extensive specifications. To buy or learn more about Alloy C-22, contact us now.

Inquire Now