250 Maraging
High-Strength250 Maraging / high strength steel
250 Maraging supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| C | 0.03 |
|---|---|
| NI | 17 |
| CO | 7 |
| MO | 4.6 |
| TI | 0.3 |
| MN | 0.1 |
| SI | 0.1 |
Chinese Standard
AMS 6512
Equivalent Grades
18Ni 250
Available Forms
Bar, Plate, Forging
Uses
Nickel/cobalt-base superalloy retaining high strength, creep and corrosion resistance at extreme temperature. Cobalt (≈7.75%) 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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