Inconel 625
High-Temp SteelInconel 625
Nickel-chromium superalloy with exceptional corrosion & heat resistance.
Chemical Composition (%)
| NI | 58 |
|---|---|
| CR | 20 |
| MO | 8 |
| NB+TA | 3.15 |
| FE | 5 |
| C | 0.1 |
| MN | 0.5 |
| SI | 0.5 |
| AL | 0.4 |
| TI | 0.4 |
| P | 0.015 |
| S | 0.015 |
Mechanical Properties
Tensile:≥830 MPa;Yield:≥415 MPa;Elong:≥30%;Hardness:≤240 HB
Chinese Standard
ASTM B446
Equivalent Grades
UNS N06625 / DIN 2.4856 / EN 2.4856
Applications
Aerospace, marine, chemical, nuclear.
Available Forms
Bar, Rod, Plate
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.
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