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CR011A Copper vs. 705.0 Aluminum

CR011A copper belongs to the copper alloys classification, while 705.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 CR011A copper and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 15
8.4 to 10
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Tensile Strength: Ultimate (UTS), MPa 220
240 to 260
Tensile Strength: Yield (Proof), MPa 130
130

Thermal Properties

Latent Heat of Fusion, J/g 210
390
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1040
610
Specific Heat Capacity, J/kg-K 390
890
Thermal Conductivity, W/m-K 390
140
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
34
Electrical Conductivity: Equal Weight (Specific), % IACS 100
110

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 9.0
2.8
Embodied Carbon, kg CO2/kg material 2.6
8.4
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 340
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 76
120 to 130
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
49
Strength to Weight: Axial, points 6.8
24 to 26
Strength to Weight: Bending, points 9.0
31 to 32
Thermal Diffusivity, mm2/s 110
55
Thermal Shock Resistance, points 7.8
11

Alloy Composition


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Aluminum (Al), % 0
92.3 to 98.6
Bismuth (Bi), % 0 to 0.00050
0
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 99.88 to 99.97
0 to 0.2
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0
0 to 0.6
Oxygen (O), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 0.030 to 0.050
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 3.3
Residuals, % 0
0 to 0.15