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7129 Aluminum vs. Nickel 30

7129 Aluminum belongs to the aluminum alloys classification, while nickel 30 belongs to the nickel alloys. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 9.0 to 9.1
34
Fatigue Strength, MPa 150 to 190
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
82
Shear Strength, MPa 250 to 260
440
Tensile Strength: Ultimate (UTS), MPa 430
660
Tensile Strength: Yield (Proof), MPa 380 to 390
270

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Maximum Temperature: Mechanical, °C 180
1020
Melting Completion (Liquidus), °C 630
1480
Melting Onset (Solidus), °C 510
1430
Specific Heat Capacity, J/kg-K 880
450
Thermal Conductivity, W/m-K 150
10
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
60
Density, g/cm3 2.9
8.5
Embodied Carbon, kg CO2/kg material 8.3
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 41
22
Strength to Weight: Bending, points 43 to 44
20
Thermal Diffusivity, mm2/s 58
2.7
Thermal Shock Resistance, points 19
18

Alloy Composition

Aluminum (Al), % 91 to 94
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0.5 to 0.9
1.0 to 2.4
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
13 to 17
Magnesium (Mg), % 1.3 to 2.0
0
Manganese (Mn), % 0 to 0.1
0 to 0.030
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
1.5 to 4.0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0
Residuals, % 0 to 0.15
0