GH5605

High-Temp Steel

GH5605

Precipitation-strengthened Ni-base superalloy. (YB/T 5231; equiv GB GH4169 / UNS N07718). Nominal values—confirm mill certificate.

Chemical Composition (%)

NI50
CR17
NB4.75
MO2.8
TI0.65
AL0.2

Mechanical Properties

Tensile:≥1275 MPa;Yield:≥1035 MPa

Chinese Standard

T 5231 GH5605

Equivalent Standards

GB GH4169

Equivalent Grades

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.

Applications

沉淀强化镍基合金。,"Bar

Available Forms

Forging

Uses

Plate"

Heat Treatment

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.

Precautions

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

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