UNS N07750 Nickel Alloy
N07750 nickel is a nickel alloy formulated for primary forming into wrought products. It has a moderately high tensile strength and a moderately low ductility among wrought nickels. The graph bars on the material properties cards below compare N07750 nickel to: wrought nickels (top), all nickel alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
25 %
Fatigue Strength
520 MPa 76 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
73 GPa 11 x 106 psi
Shear Strength
770 MPa 110 x 103 psi
Tensile Strength: Ultimate (UTS)
1200 MPa 170 x 103 psi
Tensile Strength: Yield (Proof)
820 MPa 120 x 103 psi
Thermal Properties
Curie Temperature
-130 °C -190 °F
Latent Heat of Fusion
310 J/g
Maximum Temperature: Mechanical
960 °C 1760 °F
Melting Completion (Liquidus)
1430 °C 2610 °F
Melting Onset (Solidus)
1400 °C 2540 °F
Specific Heat Capacity
460 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
13 W/m-K 7.3 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
60 % relative
Density
8.4 g/cm3 520 lb/ft3
Embodied Carbon
10 kg CO2/kg material
Embodied Energy
150 MJ/kg 64 x 103 BTU/lb
Embodied Water
260 L/kg 31 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
270 MJ/m3
Resilience: Unit (Modulus of Resilience)
1770 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
40 points
Strength to Weight: Bending
30 points
Thermal Diffusivity
3.3 mm2/s
Thermal Shock Resistance
36 points
Alloy Composition
| Ni | 70 to 77.7 | |
| Cr | 14 to 17 | |
| Fe | 5.0 to 9.0 | |
| Ti | 2.3 to 2.8 | |
| Nb | 0.7 to 1.2 | |
| Al | 0.4 to 1.0 | |
| Mn | 0 to 1.0 | |
| Co | 0 to 1.0 | |
| Si | 0 to 0.5 | |
| Cu | 0 to 0.5 | |
| C | 0 to 0.080 | |
| S | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009
Metallic Materials: Physical, Mechanical, and Corrosion Properties, Philip A. Schweitzer, 2003
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998