MakeItFrom.com
Menu (ESC)

CR021A Copper vs. A242.0 Aluminum

CR021A copper belongs to the copper alloys classification, while A242.0 aluminum belongs to the aluminum 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 CR021A copper and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
73
Elongation at Break, % 15
1.6
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 230
220

Thermal Properties

Latent Heat of Fusion, J/g 210
390
Maximum Temperature: Mechanical, °C 200
210
Melting Completion (Liquidus), °C 1090
680
Melting Onset (Solidus), °C 1040
550
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 380
140
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
37
Electrical Conductivity: Equal Weight (Specific), % IACS 99
110

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 9.0
3.1
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 320
1130

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
45
Strength to Weight: Axial, points 7.1
20
Strength to Weight: Bending, points 9.3
26
Thermal Diffusivity, mm2/s 110
52
Thermal Shock Resistance, points 8.1
9.3

Alloy Composition

Aluminum (Al), % 0
89.3 to 93.1
Bismuth (Bi), % 0 to 0.00050
0
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 99.95 to 99.998
3.7 to 4.5
Iron (Fe), % 0
0 to 0.8
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
1.2 to 1.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
1.8 to 2.3
Phosphorus (P), % 0.0020 to 0.0070
0
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 0 to 0.015
0
Titanium (Ti), % 0
0.070 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15