6063 Aluminum vs. Solder Alloy 704
6063 aluminum belongs to the aluminum alloys classification, while solder alloy 704 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 6063 aluminum and the bottom bar is solder alloy 704.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 25 to 95 | |
| 14 |
| Elastic (Young's, Tensile) Modulus, GPa | 68 | |
| 51 |
| Elongation at Break, % | 7.3 to 21 | |
| 30 |
| Poisson's Ratio | 0.33 | |
| 0.36 |
| Shear Modulus, GPa | 26 | |
| 19 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 300 | |
| 55 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 62 |
| Melting Completion (Liquidus), °C | 650 | |
| 240 |
| Melting Onset (Solidus), °C | 620 | |
| 220 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 220 |
| Thermal Conductivity, W/m-K | 190 to 220 | |
| 50 |
| Thermal Expansion, µm/m-K | 23 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 49 to 58 | |
| 13 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 160 to 190 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.7 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 19 |
| Embodied Energy, MJ/kg | 150 | |
| 320 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 3.8 |
| Stiffness to Weight: Bending, points | 50 | |
| 17 |
| Strength to Weight: Axial, points | 11 to 31 | |
| 2.1 |
| Strength to Weight: Bending, points | 18 to 37 | |
| 4.3 |
| Thermal Diffusivity, mm2/s | 79 to 89 | |
| 30 |
| Thermal Shock Resistance, points | 4.8 to 13 | |
| 3.5 |
Alloy Composition
| Aluminum (Al), % | 97.5 to 99.4 | |
| 0 to 0.0010 |
| Antimony (Sb), % | 0 | |
| 0 to 0.1 |
| Arsenic (As), % | 0 | |
| 0 to 0.030 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.1 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0020 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 to 0.050 |
| Gold (Au), % | 0 | |
| 0 to 0.050 |
| Indium (In), % | 0 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.020 |
| Lead (Pb), % | 0 | |
| 0 to 0.070 |
| Magnesium (Mg), % | 0.45 to 0.9 | |
| 0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0.2 to 0.6 | |
| 0 |
| Silver (Ag), % | 0 | |
| 4.8 to 5.2 |
| Tin (Sn), % | 0 | |
| 94.3 to 95.2 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 to 0.1 | |
| 0 to 0.0010 |
| Residuals, % | 0 to 0.15 | |
| 0 |