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4145 Aluminum vs. C19000 Copper

4145 aluminum belongs to the aluminum alloys classification, while C19000 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 4145 aluminum and the bottom bar is C19000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
120
Elongation at Break, % 2.2
2.5 to 50
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
43
Shear Strength, MPa 69
170 to 390
Tensile Strength: Ultimate (UTS), MPa 120
260 to 760
Tensile Strength: Yield (Proof), MPa 68
140 to 630

Thermal Properties

Latent Heat of Fusion, J/g 540
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 590
1080
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 100
250
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
60
Electrical Conductivity: Equal Weight (Specific), % IACS 84
61

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 7.6
2.7
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 1040
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
18 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 31
89 to 1730
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 12
8.2 to 24
Strength to Weight: Bending, points 19
10 to 21
Thermal Diffusivity, mm2/s 42
73
Thermal Shock Resistance, points 5.5
9.3 to 27

Alloy Composition

Aluminum (Al), % 83 to 87.4
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
96.9 to 99
Iron (Fe), % 0 to 0.8
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0
0.9 to 1.3
Phosphorus (P), % 0
0.15 to 0.35
Silicon (Si), % 9.3 to 10.7
0
Zinc (Zn), % 0 to 0.2
0 to 0.8
Residuals, % 0
0 to 0.5