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Singapore 437433

Tel: (65) 9617 5912
E-Mail: andrewmarshall@alloywire.com

Inconel® X750
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Inconel® X750

Available in any of the 'profile options'

View X-750 Standard Stock Sizes

X750 is a Nickel-Chromium alloy made precipitation hardenable by additions of Al and Ti, having creep-rupture strength at high temperatures to about 700oC (1290oF). It is widely used for high temperature conditions but is not as strong as Nimonic 90.

Inconel® X750 is also known as Nicrofer 7016, Superimphy 750, Haynes X750, Pyromet X750, and Udimet X750.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
C 0.08
Mn 1.00
Si 0.50
S 0.01
Cr 14.00 17.00
Ni 70.00
Nb/Cb 0.70 1.20
Ti 2.25 2.75
Al 0.40 1.00
Fe 5.00 9.00
Co 1.00
Ta 0.05
Cu 0.50
AMS 5667
AMS 5671
AMS 5698 (No 1 Spring Temper)
AMS 5699 (Spring Temper)
ASTM B637
BS HR 505
GE B14H41
ISO 15156-3 (NACE MR 0175)
W.NR 2.4669
UNS N07750
AWS 014
Good creep rupture strength at high temperatures
Not as strong as Nimonic 90
Very good at cryogenic temperatures
Age hardenable
High temperature dynamic applications^^
Nuclear reactors
Gas turbines
Rocket engines
Pressure vessels
Aircraft structures
Density 8.28g/cm³ 0.299 lb/in³
Melting Point 1430°C 2600°F
Coefficient of Expansion 12.6 μm/m °C (20 – 100°C) 7.0 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 75.8 kN/mm² 10994 ksi
Modulus of Elasticity
(Spring Temper + Aged)
(Spring Temper + 3 Part Heat Treated)
(No.1 Spring Temper + Aged)
218.0 kN/mm²
212.4 kN/mm²
213.7 kN/mm²
31619 ksi
30806 ksi
30995 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Spring Temper Age Harden 650 1200 4 Air
Spring Temper (3 Part) Anneal
Stabalize
Age Harden
1150
843
704
2100
1550
1300
2
24
20
Air
Air
Air
No. 1 Temper Age Harden 730 1350 16 Air
Properties
Condition Approx. tensile strength Approx. operating temperature depending on load^^ and environment
N/mm² ksi °C °F
Annealed 800 – 1000 116 – 145  –
No 1 Temper 900 – 1150 130 – 167  –  –
Spring Temper 1100 – 1500 160 – 218  –  –
No 1 Temper + Aged 1300 – 1450 188 – 210 -200 to +550 -330 to +1020
Spring Temper + Aged 1350 – 1750 196 – 254 -200 to +370 -330 to +700
Spring Temper + 3 Part heat treated 1100 – 1250 159 – 181 -200 to +550 -330 to +1020

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies

† for diameters below 1.00mm contact AWI quality department.

^^ Dynamic applications = active / lively / changing

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