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Superior Resistance to Pitting, Crevice & Stress Corrosion
Excellent Performance in Oxidizing and Mixed Acid Environments
Ideal for Chemical Processing & Pollution Control Systems
Hastelloy C-22 pipe is a nickel-chromium-molybdenum alloy engineered to deliver exceptional resistance to localized corrosion, including pitting and crevice attack. Compared to C-276, C-22 offers enhanced resistance in oxidizing environments and improved protection against chloride-induced corrosion. It is widely used in highly aggressive chemical processing systems and pollution control applications.
| Item | Details |
|---|---|
| Grade | Hastelloy C-22 |
| UNS | N06022 |
| Werkstoff No. | 2.4602 |
| Standards | ASTM B622 / ASTM B619 / ASTM B626 / ASME SB622 |
| Pipe Type | Seamless / Welded |
| Outer Diameter | 6mm – 610mm |
| Wall Thickness | 0.8mm – 40mm |
| Length | Random / Fixed / Customized |
| Surface Finish | Annealed / Pickled / Polished |
| Ni (Bal.) | Cr | Mo | Fe | C (Max) |
|---|---|---|---|---|
| Balance | 20.0 – 22.5 | 12.5 – 14.5 | 2.0 – 6.0 | 0.015 |
Used in reactors, heat exchangers, and transfer piping exposed to mixed acids and chlorinated systems.
Applied in scrubbers and ducting systems handling acidic flue gases.
Ideal for equipment exposed to aggressive industrial waste streams.
Provides high purity corrosion resistance for sensitive chemical processes.
C-22 provides improved resistance to pitting and crevice corrosion in oxidizing environments compared to C-276.
Yes, C-22 demonstrates excellent resistance to wet chlorine and mixed acid systems.
No, it maintains strong corrosion resistance in the as-welded condition.
Yes, we manufacture according to project drawings and specifications.
Looking for a reliable Hastelloy C-22 pipe supplier? Our technical team is ready to support your project.
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