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7003 Aluminum vs. Nickel 80A

7003 aluminum belongs to the aluminum alloys classification, while nickel 80A 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 7003 aluminum and the bottom bar is nickel 80A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 11
22
Fatigue Strength, MPa 130 to 150
430
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
74
Shear Strength, MPa 210 to 230
660
Tensile Strength: Ultimate (UTS), MPa 350 to 390
1040
Tensile Strength: Yield (Proof), MPa 300 to 310
710

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Maximum Temperature: Mechanical, °C 200
980
Melting Completion (Liquidus), °C 630
1360
Melting Onset (Solidus), °C 510
1310
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 150
11
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 8.1
9.8
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
210
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
1300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 33 to 37
35
Strength to Weight: Bending, points 37 to 40
27
Thermal Diffusivity, mm2/s 59
2.9
Thermal Shock Resistance, points 15 to 17
31

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0.5 to 1.8
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.2
18 to 21
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.35
0 to 3.0
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Nickel (Ni), % 0
69.4 to 79.7
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
1.8 to 2.7
Zinc (Zn), % 5.0 to 6.5
0
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0 to 0.15
0