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6262A Aluminum vs. CR021A Copper

6262A 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 6262A aluminum and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Elongation at Break, % 4.5 to 11
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 270 to 370
140

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
98
Electrical Conductivity: Equal Weight (Specific), % IACS 140
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 2.8
9.0
Embodied Carbon, kg CO2/kg material 8.4
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1190
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
31
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1000
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 49
18
Strength to Weight: Axial, points 31 to 41
7.1
Strength to Weight: Bending, points 36 to 44
9.3
Thermal Diffusivity, mm2/s 67
110
Thermal Shock Resistance, points 14 to 18
8.1

Alloy Composition

Aluminum (Al), % 94.2 to 97.8
0
Bismuth (Bi), % 0.4 to 0.9
0 to 0.00050
Chromium (Cr), % 0.040 to 0.14
0
Copper (Cu), % 0.15 to 0.4
99.95 to 99.998
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0 to 0.15
0
Phosphorus (P), % 0
0.0020 to 0.0070
Silicon (Si), % 0.4 to 0.8
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0.4 to 1.0
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0