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Solder Alloy 703 vs. 512.0 Aluminum

Solder alloy 703 belongs to the otherwise unclassified metals classification, while 512.0 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 solder alloy 703 and the bottom bar is 512.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
50
Elastic (Young's, Tensile) Modulus, GPa 51
69
Elongation at Break, % 35
2.0
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 19
26
Tensile Strength: Ultimate (UTS), MPa 57
130

Thermal Properties

Latent Heat of Fusion, J/g 61
420
Melting Completion (Liquidus), °C 220
630
Melting Onset (Solidus), °C 220
590
Specific Heat Capacity, J/kg-K 220
900
Thermal Conductivity, W/m-K 55
150
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
38
Electrical Conductivity: Equal Weight (Specific), % IACS 17
130

Otherwise Unclassified Properties

Density, g/cm3 7.4
2.7
Embodied Carbon, kg CO2/kg material 18
8.8
Embodied Energy, MJ/kg 300
150

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
51
Strength to Weight: Axial, points 2.1
14
Strength to Weight: Bending, points 4.4
22
Thermal Diffusivity, mm2/s 33
60
Thermal Shock Resistance, points 3.7
6.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
90.6 to 95.1
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.050
0 to 0.35
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.6
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
1.4 to 2.2
Silver (Ag), % 3.3 to 3.7
0
Tin (Sn), % 95.8 to 96.7
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.0010
0 to 0.35
Residuals, % 0
0 to 0.15