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6351 Aluminum vs. C19025 Copper

6351 aluminum belongs to the aluminum alloys classification, while C19025 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 6351 aluminum and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 7.8 to 18
8.0 to 17
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 84 to 200
300 to 360
Tensile Strength: Ultimate (UTS), MPa 140 to 310
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 410
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 650
1080
Melting Onset (Solidus), °C 570
1020
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 180
160
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
40
Electrical Conductivity: Equal Weight (Specific), % IACS 150
40

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.7
8.9
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1180
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 14 to 32
15 to 19
Strength to Weight: Bending, points 22 to 38
15 to 18
Thermal Diffusivity, mm2/s 72
47
Thermal Shock Resistance, points 6.1 to 14
17 to 22

Alloy Composition

Aluminum (Al), % 96 to 98.5
0
Copper (Cu), % 0 to 0.1
97.1 to 98.5
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.4 to 0.8
0
Nickel (Ni), % 0
0.8 to 1.2
Phosphorus (P), % 0
0.030 to 0.070
Silicon (Si), % 0.7 to 1.3
0
Tin (Sn), % 0
0.7 to 1.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0
0 to 0.3