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1070A Aluminum vs. Solder Alloy 102

1070A aluminum belongs to the aluminum alloys classification, while solder alloy 102 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 1070A aluminum and the bottom bar is solder alloy 102.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
38
Elongation at Break, % 2.3 to 33
48
Poisson's Ratio 0.33
0.39
Shear Modulus, GPa 26
14
Tensile Strength: Ultimate (UTS), MPa 68 to 140
31

Thermal Properties

Latent Heat of Fusion, J/g 400
46
Melting Completion (Liquidus), °C 640
180
Melting Onset (Solidus), °C 640
180
Specific Heat Capacity, J/kg-K 900
190
Thermal Conductivity, W/m-K 230
53
Thermal Expansion, µm/m-K 23
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
12
Electrical Conductivity: Equal Weight (Specific), % IACS 200
13

Otherwise Unclassified Properties

Density, g/cm3 2.7
8.8
Embodied Carbon, kg CO2/kg material 8.2
11
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1200
930

Common Calculations

Stiffness to Weight: Axial, points 14
2.4
Stiffness to Weight: Bending, points 50
13
Strength to Weight: Axial, points 7.0 to 14
1.0
Strength to Weight: Bending, points 14 to 22
2.5
Thermal Diffusivity, mm2/s 94
32
Thermal Shock Resistance, points 3.1 to 6.3
2.4

Alloy Composition

Aluminum (Al), % 99.7 to 100
0 to 0.0010
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.050
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.030
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.25
0 to 0.020
Lead (Pb), % 0
36 to 37.5
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
62.5 to 63.5
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.070
0 to 0.0010