Special Metals INCOLOY® alloy 908

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Special Metals INCOLOY® alloy 908 (discontinued **)
Categories:	Metal; Superalloy; Iron Base; Nickel Base
Material Notes:	INCOLOY® alloy 908 (UNS N09908) is an age-hardenable nickel-iron alloy which exhibits a low coefficient of thermal expansion, high tensile strength, high fracture and impact toughness, fatigue crack growth resistance, good ductility, metallurgical stability and weldability plus sufficient resistance to stress accelerated grain boundary oxygen embrittlement (SAGBO) to permit hot fabrication without cracking. This cobalt-free, low CTE alloy was designed to meet sheathing material requirements for internally cooled Nb₃Sn superconductor magnets to be used in prototype fusion reactors at cryogenic operating temperatures of -452°F (-269°C). With low temperature properties it is excellent for cryogenic applications. Information Provided by Special Metals Corporation
Key Words:	UNS N09908; ASTM B 872
Vendors:

Available Properties

Density
Hardness, Rockwell C
Tensile Strength at Break
Tensile Strength, Yield
Elongation at Break
Modulus of Elasticity
Poissons Ratio
Shear Modulus
Curie Temperature
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
Specific Heat Capacity
Thermal Conductivity
Melting Point
Solidus
Liquidus
Minimum Service Temperature, Air
Aluminum, Al
Boron, B
Carbon, C
Chromium, Cr
Cobalt, Co
Copper, Cu
Iron, Fe, Balance
Manganese, Mn
Nickel, Ni
Niobium, Nb (Columbium, Cb)
Phosphorus, P
Silicon, Si
Sulfur, S
Titanium, Ti

Property Data

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Manufacturer Notes:
Special Metals (includes the former Inco Alloys International Inc.)

Category Notes
none

**
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