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3105 Aluminum vs. C70700 Copper-nickel

3105 aluminum belongs to the aluminum alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 30 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 3105 aluminum and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
73
Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 1.1 to 20
39
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
46
Shear Strength, MPa 77 to 140
220
Tensile Strength: Ultimate (UTS), MPa 120 to 240
320
Tensile Strength: Yield (Proof), MPa 46 to 220
110

Thermal Properties

Latent Heat of Fusion, J/g 400
220
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 660
1120
Melting Onset (Solidus), °C 640
1060
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
59
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
34
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 8.2
3.4
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
100
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
51
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 12 to 24
10
Strength to Weight: Bending, points 20 to 31
12
Thermal Diffusivity, mm2/s 68
17
Thermal Shock Resistance, points 5.2 to 11
12

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
88.5 to 90.5
Iron (Fe), % 0 to 0.7
0 to 0.050
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0 to 0.5
Nickel (Ni), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.5