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CR021A Copper vs. 295.0 Aluminum

CR021A copper belongs to the copper alloys classification, while 295.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 CR021A copper and the bottom bar is 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 15
2.0 to 7.2
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 230
230 to 280
Tensile Strength: Yield (Proof), MPa 140
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 210
400
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1040
530
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 380
140
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
35
Electrical Conductivity: Equal Weight (Specific), % IACS 99
100

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 9.0
3.0
Embodied Carbon, kg CO2/kg material 2.6
7.9
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 320
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
5.2 to 13
Resilience: Unit (Modulus of Resilience), kJ/m3 83
77 to 340
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
46
Strength to Weight: Axial, points 7.1
21 to 26
Strength to Weight: Bending, points 9.3
27 to 32
Thermal Diffusivity, mm2/s 110
54
Thermal Shock Resistance, points 8.1
9.8 to 12

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.3
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.95 to 99.998
4.0 to 5.0
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 0
0 to 0.35
Phosphorus (P), % 0.0020 to 0.0070
0
Silicon (Si), % 0
0.7 to 1.5
Silver (Ag), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15