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EN AC-21100 Aluminum vs. Solder Alloy 142

EN AC-21100 aluminum belongs to the aluminum alloys classification, while solder alloy 142 belongs to the otherwise unclassified metals. 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 EN AC-21100 aluminum and the bottom bar is solder alloy 142.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
33
Elongation at Break, % 6.2 to 7.3
37
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 27
12
Tensile Strength: Ultimate (UTS), MPa 340 to 350
43

Thermal Properties

Latent Heat of Fusion, J/g 390
42
Melting Completion (Liquidus), °C 670
210
Melting Onset (Solidus), °C 550
180
Specific Heat Capacity, J/kg-K 880
170
Thermal Conductivity, W/m-K 130
45
Thermal Expansion, µm/m-K 23
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
11

Otherwise Unclassified Properties

Density, g/cm3 3.0
9.3
Embodied Carbon, kg CO2/kg material 8.0
9.4
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
890

Common Calculations

Stiffness to Weight: Axial, points 13
2.0
Stiffness to Weight: Bending, points 46
11
Strength to Weight: Axial, points 31 to 33
1.3
Strength to Weight: Bending, points 36 to 37
2.9
Thermal Diffusivity, mm2/s 48
28
Thermal Shock Resistance, points 15
3.7

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
2.5 to 3.5
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 4.2 to 5.2
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.19
0 to 0.020
Lead (Pb), % 0
47.4 to 50
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.18
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
47.5 to 48.5
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.0010
Residuals, % 0 to 0.1
0