N08825(825)

High-Temp Steel

N08825(825)

Acid-resistant Fe-Ni-base alloy. (ASTM B425; equiv UNS N08825 / ASTM B425). Nominal values—confirm mill certificate.

Chemical Composition (%)

NI38
CR19.5
MO2.5
TI0.6

Mechanical Properties

Tensile:≥590 MPa;Yield:≥240 MPa

Chinese Standard

ASTM B425 N08825(825)

Equivalent Standards

ASTM B425

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

耐酸铁镍基合金。,"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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