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7003 Aluminum vs. Grade CX2M Nickel

7003 aluminum belongs to the aluminum alloys classification, while grade CX2M nickel belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. 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 grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
220
Elongation at Break, % 11
45
Fatigue Strength, MPa 130 to 150
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
84
Tensile Strength: Ultimate (UTS), MPa 350 to 390
550
Tensile Strength: Yield (Proof), MPa 300 to 310
310

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 200
990
Melting Completion (Liquidus), °C 630
1500
Melting Onset (Solidus), °C 510
1450
Specific Heat Capacity, J/kg-K 870
430
Thermal Conductivity, W/m-K 150
10
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
65
Density, g/cm3 2.9
8.7
Embodied Carbon, kg CO2/kg material 8.1
12
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
210
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 33 to 37
18
Strength to Weight: Bending, points 37 to 40
17
Thermal Diffusivity, mm2/s 59
2.7
Thermal Shock Resistance, points 15 to 17
15

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0 to 0.2
22 to 24
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.35
0 to 1.5
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 0
15 to 16.5
Nickel (Ni), % 0
56.4 to 63
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.0 to 6.5
0
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0 to 0.15
0