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| % | Co | Ni | Cr | W | Fe | C | Mn | Si | P | S | La | B |
| min | balance | 20.0 | 20.0 | 13.0 | 0.05 | 0.20 | 0.02 | |||||
| max | 24.0 | 24.0 | 16.0 | 3.0 | 0.15 | 1.25 | 0.50 | 0.020 | 0.015 | 0.12 | 0.015 |
Physical properties
| Density | 8.98 g/cm3 |
| Melting range | 1315-1410℃ |
Features: Haynes 188 combines excellent high temperature strength with very good resistance to oxidizing environments up to 1095℃ for prolonged exposure, and excellent resistance to sulfate deposit hot corrosion. It also has excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.
Applications: Military and commercial gas turbine engine combustion cans, transition ducts and after-burner components.
Note: Haynes is a registered trademark of Haynes International, Inc.