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Solder Alloy 401 vs. 1050 Aluminum

Solder alloy 401 belongs to the otherwise unclassified metals classification, while 1050 aluminum belongs to the aluminum alloys. 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 solder alloy 401 and the bottom bar is 1050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
68
Elongation at Break, % 21
4.6 to 37
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 19
26
Tensile Strength: Ultimate (UTS), MPa 29
76 to 140

Thermal Properties

Latent Heat of Fusion, J/g 60
400
Melting Completion (Liquidus), °C 230
640
Melting Onset (Solidus), °C 230
650
Specific Heat Capacity, J/kg-K 220
900
Thermal Conductivity, W/m-K 66
230
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
61
Electrical Conductivity: Equal Weight (Specific), % IACS 17
200

Otherwise Unclassified Properties

Density, g/cm3 7.3
2.7
Embodied Carbon, kg CO2/kg material 15
8.3
Embodied Energy, MJ/kg 250
160
Embodied Water, L/kg 1200
1200

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
50
Strength to Weight: Axial, points 1.1
7.8 to 14
Strength to Weight: Bending, points 2.9
15 to 22
Thermal Diffusivity, mm2/s 40
94
Thermal Shock Resistance, points 1.9
3.4 to 6.2

Alloy Composition

Aluminum (Al), % 0 to 0.0010
99.5 to 100
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
Copper (Cu), % 0.5 to 0.9
0 to 0.050
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.4
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.25
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 98.5 to 99.5
0
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0010
0 to 0.050