Project Description

Haynes 25 (UNS R30605 / W.Nr 2.4964)

Haynes 25 (UNS R30605 / W.Nr 2.4964) is a cobalt-nickel- chromium-tungsten alloy that combines excellent high-temperature strength with good resistance to oxidizing environments up to 980℃ for prolonged exposures, and excellent resistance to sulfidation. It can be fabricated and formed by conventional techniques, and has been used for cast components. Other attractive features include excellent resistance to metal galling.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Haynes 25
L605		GH5605–Haynes 25R30605CoCr20W15Ni2.4964
2.4967		CoCr20W15Ni
KC20WN		–––

Chemical Composition, %

AlloyCSiMnPSCrNiCoWFe
Haynes 250.05-0.15≤0.401.0-2.0≤0.04≤0.0319.0-21.09.0-11.0Bal14.0-16.0≤3.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
9.071330-141099647654.7/

Available Products and Specifications

Rod, Bar, Wire and ForgingsAMS 5759
Plate, Sheet and StripAMS 5537
Pipe and Tube–
Welding ProductAMS 5797, AMS 5796
Others–

Features

  • Outstanding high temperature strength
  • Oxidation resistant to 1800° F
  • Galling resistant
  • Resistant to marine environments, acids and body fluids

Applications

  • Gas turbine engine combustion chambers and afterburners
  • High temperature ball bearings and bearing races
  • Springs
  • Heart valves