Inconel alloy 690
High-Temp SteelInconel alloy 690
Inconel alloy 690 grade supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| FE | 7 |
|---|---|
| C | 0.05 |
| SI | 0.5 |
| MN | 0.5 |
| S | 0.015 |
| CR | 27 |
| NI | 58 |
| CU | 0.5 |
Available Forms
Bar, Forging, Sheet, Wire
Uses
Nickel/cobalt-base superalloy retaining high strength, creep and corrosion resistance at extreme temperature. 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.
Comments 0