Alloy C22 provides resistance to general corrosion, pitting, crevice corrosion, intergranular attack, and stress corrosion cracking. Alloy C22 contains chromium, molybdenum, tungsten, and iron which makes the alloy resistant to corrosion in stagnant or flowing seawater. The alloy is formed by gas tungsten-arc, gas metal-arc, and shielded metal-arc processes.
Alloy C22 Specifications
| Grade | UNS | W.Nr |
| Alloy C22 | N06022 | 2.4602 |
Alloy C22 Chemical composition
| Grade | % | C | P | S | Mn | Si | Cr | Co | Mo | Ti | A1 | Fe | W | V | Ni |
| Alloy C22 | Min | 20 | 125 | 12.5 | 0.6 | 2 | 2.5 | Bal | |||||||
| Max | 0.15 | 0.02 | 0.02 | 0.50 | 0.08 | 22 | 14.5 | 14.5 | 1.2 | 0.2 | 6 | 3.5 | 0.35 |
Alloy C22 Mechanical properties: (Min Value at 20℃)
| Tensile Strength
σb/MPa |
Yield Strength
σp0.2/MPa |
Elongation
σ5/% |
| 690 | 310 | 45 |
Alloy C22 Standard
| Pipe | Sheet | Rod | Strip |
| ASTM A213
ASTM A335 |
ASTM B575 | ASTM B574 | ASTM B575 |
