611

High-Temp Steel

611

Co-strengthened Ni-base alloy. (ASTM B637; equiv UNS N06611). Nominal values—confirm mill certificate.

Chemical Composition (%)

CR	17
CO	9
MO	6
TI	1.5
AL	1

Mechanical Properties

Tensile:≥1000 MPa;Yield:≥750 MPa

Chinese Standard

ASTM B637 611

Applications

钴强化镍基合金。,Bar

Available Forms

Nickel/cobalt-base superalloy retaining high strength, creep and corrosion resistance at extreme temperature. Cobalt (≈10.5%) 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.

Precautions

UNS N06611

Request a Quote Back to category

611