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6151 Aluminum vs. C19800 Copper

6151 aluminum belongs to the aluminum alloys classification, while C19800 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 6151 aluminum and the bottom bar is C19800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 5.7
9.0 to 12
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 190 to 200
260 to 330
Tensile Strength: Ultimate (UTS), MPa 330 to 340
430 to 550
Tensile Strength: Yield (Proof), MPa 270 to 280
420 to 550

Thermal Properties

Latent Heat of Fusion, J/g 410
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 590
1050
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
260
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
61
Electrical Conductivity: Equal Weight (Specific), % IACS 150
62

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.9
Embodied Carbon, kg CO2/kg material 8.2
2.8
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
49 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
770 to 1320
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 34
14 to 17
Strength to Weight: Bending, points 39
14 to 17
Thermal Diffusivity, mm2/s 70
75
Thermal Shock Resistance, points 15
15 to 20

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
0
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
95.7 to 99.47
Iron (Fe), % 0 to 1.0
0.020 to 0.5
Magnesium (Mg), % 0.45 to 0.8
0.1 to 1.0
Manganese (Mn), % 0 to 0.2
0
Phosphorus (P), % 0
0.010 to 0.1
Silicon (Si), % 0.6 to 1.2
0
Tin (Sn), % 0
0.1 to 1.0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0.3 to 1.5
Residuals, % 0
0 to 0.2