10Ni-14Co-2Cr

High-Strength

10Ni-14Co-2Cr

Secondary-hardening ultra-high-strength steel. (GJB 5255; equiv UNS K92580 / 16Co14Ni10Cr2Mo1). Nominal values—confirm mill certificate.

Chemical Composition (%)

NI9.5
CO13.5
CR1.8
MO0.9
C0.13

Mechanical Properties

Tensile:≥1515 MPa;Yield:≥1380 MPa

Chinese Standard

GJB 5255 10Ni-14Co-2Cr

Equivalent Grades

UNS K92580 / 16Co14Ni10Cr2Mo1

Applications

二次硬化超高强钢。,"Bar

Available Forms

Forging"

Uses

Nickel/cobalt-base superalloy retaining high strength, creep and corrosion resistance at extreme temperature. Cobalt (≈14%) 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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