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Alloy 22 / Hastelloy C-22 (UNS N06022)
Technical Data Sheet
Alloy 22 (UNS N06022) is the most versatile Nickel-Chromium-Molybdenum-Tungsten alloy with controlled Iron. Due to Alloy 22's content this alloy exhibits excellent resistance to both oxidising and reducing acid environments as well as those containing mixed acids. Alloy 22 is particularly useful for resistance to pitting and crevice corrosion in acid-halide environments. Alloy 22 is used in pickling chlorination, sulphonation plants, pollution control, chemical processing, marine and nuclear fuel reprocessing.
| Chemical Composition Limits | ||||||||||||
| Weight % | Ni | Cr | Mo | Fe | W | Co | V | C | Mn | S | Si | P |
| Alloy 22 | Bal | 20-22 | 12.5-14.5 | 2-6 | 2.5-3.5 | 2.5 max | 0.35 max | 0.015 max | 0.50 max | 0.02 max | 0.08 max | 0.02 max |
Typical Mechanical Properties
| Material | Yield Strength (0.2% Offset) | Tensile Strength | Elongation (%) | ||
| ksi | MPa | ksi | MPa | ||
| Alloy 22 Bar | 55 | 379 | 115 | 793 | 60 |
Availability
Alloy 22 is available in Bar, Sheet, Plate, Forging Stock and Welding Wire. For all stock availability contact Sales.
Specifications
| Alloy 22 Bar | ASTM B574, ASTM B462, DIN 17752, ISO 9724, ISO 9723 |
| Alloy 22 Plate | ASTM B 575 |
| Alloy 22 Sheet | ASTM B 575, ASTM B906, ASME SB 575 ASME SB 906, ASME Code Case 2226, ISO 6208, DIN 17750 |
| Alloy 22 Strip | ASTM B 575, ASTM B906, ASME SB 575 ASME SB 906, ASME Code Case 2226, ISO 6208, DIN 17750 |
| Alloy 22 Wire | ASTM B574, DIN 17753 |
| Alloy 22 Forging | ASTM B564, ASTM SB564, DIN 17754 |
| Alloy 22 Pipe | Seamless Pipe ASTM B622, Weld Pipe ASTM B619, ASTM B775 |
| Alloy 22 Tube | Seamless Tube, ASTM B622, ASTM B829, Weld Tube ASTM B626, DIN 17751, ISO 6207 |
| Alloy 22 Fitting | ASTM B366, ASME SB366 |
| Alloy 22 Other | UNS N06022, Werkstoff Nr 2.4602 |
