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851.0 Aluminum vs. CR012A Copper

851.0 aluminum belongs to the aluminum alloys classification, while CR012A copper belongs to the copper alloys. There are 25 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 851.0 aluminum and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 3.9 to 9.1
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 130 to 140
220

Thermal Properties

Latent Heat of Fusion, J/g 410
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 630
1090
Melting Onset (Solidus), °C 360
1040
Specific Heat Capacity, J/kg-K 850
390
Thermal Conductivity, W/m-K 180
390
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
100
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 14
33
Density, g/cm3 3.1
9.0
Embodied Carbon, kg CO2/kg material 8.4
2.7
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 1140
360

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 12 to 13
6.8
Strength to Weight: Bending, points 19 to 20
9.0
Thermal Diffusivity, mm2/s 69
110
Thermal Shock Resistance, points 6.1 to 6.3
7.8

Alloy Composition

Aluminum (Al), % 86.6 to 91.5
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 0.7 to 1.3
99.85 to 99.94
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0.3 to 0.7
0
Oxygen (O), % 0
0 to 0.040
Silicon (Si), % 2.0 to 3.0
0
Silver (Ag), % 0
0.060 to 0.080
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0