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2011A Aluminum vs. CR025A Copper

2011A aluminum belongs to the aluminum alloys classification, while CR025A 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 2011A aluminum and the bottom bar is CR025A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.8 to 16
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 310 to 410
230
Tensile Strength: Yield (Proof), MPa 140 to 310
140

Thermal Properties

Latent Heat of Fusion, J/g 390
210
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 660
1090
Melting Onset (Solidus), °C 550
1040
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 130
370
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
99
Electrical Conductivity: Equal Weight (Specific), % IACS 96
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 3.1
9.0
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
31
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
83
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 44
18
Strength to Weight: Axial, points 28 to 37
7.1
Strength to Weight: Bending, points 33 to 40
9.3
Thermal Diffusivity, mm2/s 49
110
Thermal Shock Resistance, points 14 to 18
8.1

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0
Bismuth (Bi), % 0.2 to 0.6
0 to 0.00050
Copper (Cu), % 4.5 to 6.0
99.9 to 99.96
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0.2 to 0.6
0 to 0.0050
Phosphorus (P), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0