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3105 Aluminum vs. CR004A Copper

3105 aluminum belongs to the aluminum alloys classification, while CR004A copper belongs to the copper 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 3105 aluminum and the bottom bar is CR004A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 1.1 to 20
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 120 to 240
220
Tensile Strength: Yield (Proof), MPa 46 to 220
130

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 660
1090
Melting Onset (Solidus), °C 640
1040
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
380
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
100
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
9.0
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
29
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 12 to 24
6.8
Strength to Weight: Bending, points 20 to 31
9.0
Thermal Diffusivity, mm2/s 68
110
Thermal Shock Resistance, points 5.2 to 11
7.8

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Bismuth (Bi), % 0
0 to 0.00050
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
99.9 to 100
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Oxygen (O), % 0
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Silver (Ag), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0