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MedicalHAYNES® 188 alloy (UNS R30188) is a cobalt-nickel-chromium-tungsten alloy that offers excellent high-temperature strength and superior oxidation resistance up to 2000°F (1095°C) and thermal stability. This alloy is used extensively in demanding military and civil aircraft gas turbine engine combustors, transition ducts, and after-burner components.
Chemical Makeup
| Element | Min | Max |
|---|---|---|
| Carbon, C | 0.05 | 0.15 |
| Manganese, Mn | - | 1.25 |
| Silicon, Si | 0.20 | 0.50 |
| Phosphorous, P | - | 0.02 |
| Sulfur, S | - | 0.02 |
| Chromium, Cr | 20.00 | 24.00 |
| Nickel, Ni | 20.00 | 24.00 |
| Tungsten, W | 13.00 | 16.00 |
| Lanthanum, La | 0.02 | 0.12 |
| Boron, B | - | 0.00 |
| Iron, Fe | - | 3.00 |
| Cobalt, Co | Balance | - |
Common Applications
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Defense
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Industrial
Benefits
- Excellent strength
- Superior oxidation resistance and thermal stability
- Good sulfidation resistance
We stock HAYNES 188 to the following specifications:
- AMS 5772
Click on a cross-section to see the sizes we stock: