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Solder Alloy 124 vs. EN AC-48100 Aluminum

Solder alloy 124 belongs to the otherwise unclassified metals classification, while EN AC-48100 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 124 and the bottom bar is EN AC-48100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
76
Elongation at Break, % 46
1.1
Poisson's Ratio 0.44
0.33
Shear Modulus, GPa 5.8
29
Tensile Strength: Ultimate (UTS), MPa 27
240 to 330

Thermal Properties

Latent Heat of Fusion, J/g 24
640
Melting Completion (Liquidus), °C 330
580
Melting Onset (Solidus), °C 320
470
Specific Heat Capacity, J/kg-K 130
880
Thermal Conductivity, W/m-K 22
130
Thermal Expansion, µm/m-K 29
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
87

Otherwise Unclassified Properties

Base Metal Price, % relative 70
11
Density, g/cm3 11
2.8
Embodied Carbon, kg CO2/kg material 4.1
7.3
Embodied Energy, MJ/kg 68
130
Embodied Water, L/kg 470
940

Common Calculations

Stiffness to Weight: Axial, points 0.83
15
Stiffness to Weight: Bending, points 7.6
51
Strength to Weight: Axial, points 0.65
24 to 33
Strength to Weight: Bending, points 1.8
31 to 38
Thermal Diffusivity, mm2/s 15
55
Thermal Shock Resistance, points 3.9
11 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
72.1 to 79.8
Antimony (Sb), % 0 to 0.12
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
4.0 to 5.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 1.3
Lead (Pb), % 97.2 to 98.2
0
Magnesium (Mg), % 0
0.25 to 0.65
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
0 to 0.3
Silicon (Si), % 0
16 to 18
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 1.8 to 2.2
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.0010
0 to 1.5
Residuals, % 0
0 to 0.25