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7204 Aluminum vs. Solder Alloy 134

7204 aluminum belongs to the aluminum alloys classification, while solder alloy 134 belongs to the otherwise unclassified metals. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 7204 aluminum and the bottom bar is solder alloy 134.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
31
Elongation at Break, % 11 to 13
31
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 26
11
Tensile Strength: Ultimate (UTS), MPa 220 to 380
38

Thermal Properties

Latent Heat of Fusion, J/g 380
41
Melting Completion (Liquidus), °C 640
230
Melting Onset (Solidus), °C 520
190
Specific Heat Capacity, J/kg-K 880
170
Thermal Conductivity, W/m-K 150
45
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
10
Electrical Conductivity: Equal Weight (Specific), % IACS 120
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
100
Density, g/cm3 2.9
9.6
Embodied Carbon, kg CO2/kg material 8.4
8.5
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
820

Common Calculations

Stiffness to Weight: Axial, points 13
1.8
Stiffness to Weight: Bending, points 47
11
Strength to Weight: Axial, points 21 to 36
1.1
Strength to Weight: Bending, points 28 to 40
2.6
Thermal Diffusivity, mm2/s 58
28
Thermal Shock Resistance, points 9.4 to 16
3.4

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
0 to 0.0010
Antimony (Sb), % 0
2.0 to 2.4
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.2
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.35
0 to 0.020
Lead (Pb), % 0
56.5 to 58.5
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0.2 to 0.7
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
39.5 to 40.5
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0 to 0.0010
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0