MakeItFrom.com
Menu (ESC)

2011 Aluminum vs. CR021A Copper

2011 aluminum belongs to the aluminum alloys classification, while CR021A 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 2011 aluminum and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 8.5 to 18
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Tensile Strength: Ultimate (UTS), MPa 310 to 420
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 640
1090
Melting Onset (Solidus), °C 540
1040
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140 to 170
380
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
98
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
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 29 to 52
31
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
83
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 44
18
Strength to Weight: Axial, points 27 to 37
7.1
Strength to Weight: Bending, points 32 to 40
9.3
Thermal Diffusivity, mm2/s 51 to 64
110
Thermal Shock Resistance, points 14 to 19
8.1

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
0
Bismuth (Bi), % 0.2 to 0.6
0 to 0.00050
Copper (Cu), % 5.0 to 6.0
99.95 to 99.998
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0.2 to 0.6
0 to 0.0050
Phosphorus (P), % 0
0.0020 to 0.0070
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