
What to Check Before Buying Hastelloy C22 Pipe Fittings
Before purchasing Hastelloy C22 pipe fittings, it's important to verify several key aspects to ensure they meet your specific application needs and quality standards. These include checking the material's composition, dimensions, pressure and temperature ratings, and corrosion resistance, as well as verifying the manufacturer's certifications and test reports.
What are the properties of Hastelloy C22?
C-22 alloy offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. It also exhibits excellent resistance to oxidizing aqueous media, including acids containing oxidants, wet chlorine, and mixtures of oxidizing acids containing nitric acid or chloride ions.

Hastelloy C22 Pipe Fittings Specifications |
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| Specifications | : | ASTM B366 / ASME SB366 |
| Size | : | Seamless Butt Weld Fittings: 1/2″ – 10″, Welded Butt Weld Fittings: 1/2″ – 48″ |
| Standards | : | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Thickness | : | 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75 |
| Type | : | Seamless / Welded / Fabricated |
Hastelloy C22 Pipe Fittings Chemical Composition
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C22 | 0.010 max | 0.50 max | 0.08 max | 0.02 max | 2.50 max | 50.015 min* | 20.00 – 22.50 | 2.00 – 6.00 | 12.50 – 14.50 | 0.02 max |
Hastelloy C22 Buttweld Fittings Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |

Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.





