Incoloy800H

High-Temp Steel

Incoloy800H

Fe-Ni-Cr alloy, heat & carburization resistant. (UNS N08810; equiv Incoloy 800H / UNS N08810). Nominal values—confirm mill certificate.

Chemical Composition (%)

NI30
CR19
TI0.15
AL0.15

Mechanical Properties

Tensile:≥450 MPa;Yield:≥170 MPa

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

铁镍铬耐热抗渗碳。,"Plate

Available Forms

Bar

Uses

Tube"

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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