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Alloy 22
Documentation:
Description:
Alloy 22 is a nickel-chromium-molybdenum alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. It resists the formation of grain boundary precipitates in the weld-heat affected zone making it suitable for use in the as-welded condition. Alloy 22 has outstanding resistance to both reducing and oxidizing media and because of its resistibility can be used where "upset" conditions are likely to occur. It is proven to possess excellent weldability and high corrosion resistance as consumable filler wires and electrodes. The alloy has proven results as a filler wire in many applications. As filler wire use when other corrosion resistant wires have failed.
Chemical Composition:
| Element | Avg. Nominal % |
| Nickel | Balance |
| Chromium | 22.0 |
| Molybdenum | 13.5 |
| Tungsten | 3.0 |
| Iron | 4.0 |
| Carbon | 0.015 Max |
| Silicon | 0.08 Max |