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6023 Aluminum vs. CR023A Copper

6023 aluminum belongs to the aluminum alloys classification, while CR023A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 6023 aluminum and the bottom bar is CR023A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 11
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 360
220
Tensile Strength: Yield (Proof), MPa 300 to 310
130

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 640
1090
Melting Onset (Solidus), °C 580
1040
Specific Heat Capacity, J/kg-K 890
390
Thermal Conductivity, W/m-K 170
380
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
100
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 2.8
9.0
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
29
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 49
18
Strength to Weight: Axial, points 35 to 36
6.8
Strength to Weight: Bending, points 40
9.0
Thermal Diffusivity, mm2/s 67
110
Thermal Shock Resistance, points 16
7.8

Alloy Composition

Aluminum (Al), % 94 to 97.7
0
Bismuth (Bi), % 0.3 to 0.8
0 to 0.00050
Copper (Cu), % 0.2 to 0.5
99.9 to 99.995
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0
Phosphorus (P), % 0
0.0050 to 0.013
Silicon (Si), % 0.6 to 1.4
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0.6 to 1.2
0
Residuals, % 0 to 0.15
0