IN948
SuperalloyIN948
Cast / wrought superalloy IN948.
Chemical Composition (%)
| CR | 8 |
|---|---|
| CO | 0 |
| MO | 0 |
| TI | 0 |
| AL | 0 |
| W | 0 |
| TA | 0 |
| C | 0.03 |
Mechanical Properties
Tensile:≥900 MPa;Yield:≥650 MPa;Elongation:≥15%
Equivalent Grades
Superalloy IN948
Applications
Turbine, aero-engine, hot section
Available Forms
Bar,Casting,Forging
Uses
Nickel/cobalt-base superalloy retaining high strength, creep and corrosion resistance at extreme temperature. Cobalt (≈10%) raises hot corrosion and wear resistance. Used in gas-turbine blades, aero-engine hot sections, combustors and advanced energy systems.
Heat Treatment
Solution treated 1050–1250 °C and aged (≈700–900 °C) to precipitate γ′/γ″ strengtheners; processed via vacuum induction + VAR/ESR for cleanliness.
Precautions
Machining is difficult — use ceramic/PCBN tools, generous coolant and rigid setups. Keep clean (vacuum/inert melting) to avoid inclusions; avoid contamination by low-melting elements.
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