Haynes 25 Cobalt Based Alloy

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Cobalt-nickel-chromium-tungsten alloy

Haynes 25 Cobalt Based Alloy

Physical and Mechanical Properties

Density

9.13g/cm³

Melting point

1330-1410°C

Tensile strength

960MPa

Yield strength

340MPa

Elongation at break

35%

Product Form and Standard Specification

Bar

AMS5759

Plate

AMS5537

Strip

AMS5537

Wire

AMS5796

Forging

AMS5759

Haynes 25 (L605) is a cobalt-nickel-chromium-tungsten alloy renowned for its high-temperature strength, oxidation resistance, and wear resistance. It finds extensive applications in aerospace, medical, energy, and other demanding sectors, serving as a vital material in the production of engine components and artificial joints.

Features

Excellent high-temperature strength: Maintains structural integrity and mechanical performance under extreme heat.
Oxidation resistance at 1800°F (980°C): Ideal for components exposed to continuous high-temperature oxidation.
Wear resistance: Suitable for high-friction environments where material degradation must be minimized.
Seawater resistance: Performs reliably in marine environments, resisting corrosion caused by prolonged seawater exposure.

Application

Aerospace industry: Used in gas turbine combustion chambers, jet engine parts, and combustion liners where high strength and oxidation resistance are essential.
Industrial furnaces: Ideal for mufflers, bushings, and linings in high-temperature kilns and furnace systems.
Chemical equipment: Applied in reactors and pipeline systems that demand resistance to high-temperature corrosion.
Marine industry: Suitable for marine turbines and other ocean-exposed components requiring long-term corrosion resistance.

Chemical compositions

Element	Min. %	Max. %
Fe	-	3
C	0.05	0.15
Si	-	0.4
Mn	1	2
P	-	0.04
S	-	0.03
Cr	19	21
Co	9	11
Ni	Bal
W	14	16

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