Alloy X750: High Temperature & Corrosion Resistant Nickel Alloy

Alloy X750 is a precipitation-hardening or age hardenable alloy. This alloy is useful for its strength and corrosion resistance in temperatures as high as 1500 degrees Fahrenheit; additionally, alloy X750 has significant creep rupture strength in this temperature range. Common uses of this alloy include high temperature applications such as jet engines and furnaces. Other uses include bellows, vacuum envelopes, aircraft sheets, steam service, and springs.

Alloy X750 is known for its corrosion resistance. This alloy is highly resistant to harsh corrosive environments and high temperature oxidation. The corrosion resistance of this alloy is similar to that of Alloy 600. Even when Alloy X750 is exposed in the fully precipitation hardened condition, the alloy remains immune to chloride stress corrosion cracking.

NOMINAL DATA SHEET

CHEMICAL COMPOSITION

TYPICAL APPLICATIONS

C - .08 max	Al - .4/1.0 max	Vacuum Envelopes
Mn - .35 max	Ti - 2.25/2.75 max	Bellows
P - .015 max	Cb+ta - .7/1.2	Aircraft Sheet
S - .015 max	Co - 1.0 max	Steam Service
Si - .35 max		Springs
Cr - 14/17
Ni - 70.0
Cu - .50 max
Fe - 5/9

PHYSICAL PROPERTIES(ANNEALED CONDITION) **

Modulus of Elasitcity, Tension 10(******)psi - 31.0
Magnetic permeability at 200H(At 70 F) - 1.0035
Electrical Resistivity, Microhm-cm(At 70 F) - 122
Density,lb/cu.in. - .298
Coefficient of Thermal Expansion, in./in./ F x 10(-******)
70 - 200 F ............................ 7.0
70 - 400 F ............................ 7.1
70 - 800 F ............................ 7.8
70 - 1000 F ........................... 8.1
** (Aged)

NOMINAL MECHANICAL PROPERTIES(ANNEALED CONDITION)

Ultimate Tensile Strength,psi - 112,000
0.2% Offset Yield Strength,psi -46,000
Elongation in 2 inches percent - 45
Hardness, Rockwell - B80

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