MARAging250

High-Strength

MARAging250

Specialty steel grade. ; equiv Maraging 250 / AMS 6512). Nominal values—confirm mill certificate.

Chemical Composition (%)

NI17
CO7
MO4.6
TI0.3
C0.03

Mechanical Properties

Tensile (Aged):≥1800 MPa;Yield:≥1700 MPa

Chinese Standard

AMS 6512 MARAging250

Equivalent Standards

Maraging 250 / AMS 6512

Applications

250级马氏体时效钢。,Bar

Available Forms

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.

Uses

Solution treated 1050–1250 °C and aged (≈700–900 °C) to precipitate γ′/γ″ strengtheners; processed via vacuum induction + VAR/ESR for cleanliness.

Heat Treatment

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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