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238.0 Aluminum vs. Solder Alloy 191

238.0 aluminum belongs to the aluminum alloys classification, while solder alloy 191 belongs to the otherwise unclassified metals. There are 22 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 238.0 aluminum and the bottom bar is solder alloy 191.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
19
Elongation at Break, % 1.5
32
Poisson's Ratio 0.33
0.43
Shear Modulus, GPa 28
6.5
Tensile Strength: Ultimate (UTS), MPa 210
29

Thermal Properties

Latent Heat of Fusion, J/g 430
27
Melting Completion (Liquidus), °C 600
300
Melting Onset (Solidus), °C 510
300
Specific Heat Capacity, J/kg-K 840
130
Thermal Conductivity, W/m-K 100
24
Thermal Expansion, µm/m-K 21
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 67
7.2

Otherwise Unclassified Properties

Density, g/cm3 3.4
11
Embodied Carbon, kg CO2/kg material 7.4
5.8
Embodied Energy, MJ/kg 140
95

Common Calculations

Stiffness to Weight: Axial, points 12
0.93
Stiffness to Weight: Bending, points 42
8.0
Strength to Weight: Axial, points 17
0.72
Strength to Weight: Bending, points 23
1.9
Thermal Diffusivity, mm2/s 37
16
Thermal Shock Resistance, points 9.1
3.9

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 9.5 to 10.5
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 1.0 to 1.5
0 to 0.020
Lead (Pb), % 0
92.4 to 94
Magnesium (Mg), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 3.6 to 4.4
0
Silver (Ag), % 0
1.2 to 1.8
Tin (Sn), % 0
4.8 to 5.2
Zinc (Zn), % 1.0 to 1.5
0 to 0.0010