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Grade N7M Nickel vs. Nickel 908

Both grade N7M nickel and nickel 908 are nickel alloys. They have 52% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Elongation at Break, % 22
11
Fatigue Strength, MPa 190
450
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 85
70
Tensile Strength: Ultimate (UTS), MPa 590
1340
Tensile Strength: Yield (Proof), MPa 310
930

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 900
920
Melting Completion (Liquidus), °C 1650
1430
Melting Onset (Solidus), °C 1590
1380
Specific Heat Capacity, J/kg-K 390
460
Thermal Expansion, µm/m-K 9.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 75
50
Density, g/cm3 9.3
8.3
Embodied Carbon, kg CO2/kg material 16
9.3
Embodied Energy, MJ/kg 200
140
Embodied Water, L/kg 270
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2340
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 18
45
Strength to Weight: Bending, points 17
33
Thermal Shock Resistance, points 19
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 0 to 1.0
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 3.0
35.6 to 44.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 30 to 33
0
Nickel (Ni), % 60.9 to 70
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8