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Solder Alloy 715 vs. 771.0 Aluminum

Solder alloy 715 belongs to the otherwise unclassified metals classification, while 771.0 aluminum belongs to the aluminum alloys. 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 solder alloy 715 and the bottom bar is 771.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 16
85 to 120
Elastic (Young's, Tensile) Modulus, GPa 51
70
Elongation at Break, % 21
1.7 to 6.5
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 19
26
Tensile Strength: Ultimate (UTS), MPa 30
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 61
380
Melting Completion (Liquidus), °C 220
630
Melting Onset (Solidus), °C 220
620
Specific Heat Capacity, J/kg-K 220
870
Thermal Conductivity, W/m-K 60
140 to 150
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 15
82

Otherwise Unclassified Properties

Density, g/cm3 7.3
3.0
Embodied Carbon, kg CO2/kg material 16
8.0
Embodied Energy, MJ/kg 270
150

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
46
Strength to Weight: Axial, points 1.1
23 to 35
Strength to Weight: Bending, points 2.9
29 to 39
Thermal Diffusivity, mm2/s 37
54 to 58
Thermal Shock Resistance, points 1.9
11 to 16

Alloy Composition


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Aluminum (Al), % 0 to 0.0010
90.5 to 92.5
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
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 0.5 to 0.9
0 to 0.1
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.15
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
0.8 to 1.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.15
Silver (Ag), % 0.8 to 1.2
0
Tin (Sn), % 97.4 to 98.7
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0 to 0.0010
6.5 to 7.5
Residuals, % 0
0 to 0.15