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EN AC-21100 Aluminum vs. Solder Alloy 104

EN AC-21100 aluminum belongs to the aluminum alloys classification, while solder alloy 104 belongs to the otherwise unclassified metals. There are 23 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 EN AC-21100 aluminum and the bottom bar is solder alloy 104.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
37
Elongation at Break, % 6.2 to 7.3
46
Poisson's Ratio 0.33
0.39
Shear Modulus, GPa 27
13
Tensile Strength: Ultimate (UTS), MPa 340 to 350
51

Thermal Properties

Latent Heat of Fusion, J/g 390
45
Melting Completion (Liquidus), °C 670
190
Melting Onset (Solidus), °C 550
180
Specific Heat Capacity, J/kg-K 880
180
Thermal Conductivity, W/m-K 130
50
Thermal Expansion, µm/m-K 23
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
11

Otherwise Unclassified Properties

Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.0
10
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1150
900

Common Calculations

Stiffness to Weight: Axial, points 13
2.3
Stiffness to Weight: Bending, points 46
12
Strength to Weight: Axial, points 31 to 33
1.6
Strength to Weight: Bending, points 36 to 37
3.4
Thermal Diffusivity, mm2/s 48
30
Thermal Shock Resistance, points 15
4.0

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
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), % 4.2 to 5.2
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.19
0 to 0.020
Lead (Pb), % 0
39 to 40.5
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.18
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.0010
Residuals, % 0 to 0.1
0