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7175 Aluminum vs. Solder Alloy 301

7175 aluminum belongs to the aluminum alloys classification, while solder alloy 301 belongs to the otherwise unclassified metals. There are 25 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 7175 aluminum and the bottom bar is solder alloy 301.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
40
Elongation at Break, % 3.8 to 5.9
51
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
15
Tensile Strength: Ultimate (UTS), MPa 520 to 570
55
Tensile Strength: Yield (Proof), MPa 430 to 490
49

Thermal Properties

Latent Heat of Fusion, J/g 380
55
Melting Completion (Liquidus), °C 640
140
Melting Onset (Solidus), °C 480
140
Specific Heat Capacity, J/kg-K 870
160
Thermal Conductivity, W/m-K 140
19
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 99
4.9

Otherwise Unclassified Properties

Density, g/cm3 3.0
8.7
Embodied Carbon, kg CO2/kg material 8.2
13
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 29
27
Resilience: Unit (Modulus of Resilience), kJ/m3 1310 to 1730
30
Stiffness to Weight: Axial, points 13
2.5
Stiffness to Weight: Bending, points 46
13
Strength to Weight: Axial, points 48 to 52
1.8
Strength to Weight: Bending, points 48 to 51
3.7
Thermal Diffusivity, mm2/s 53
13
Thermal Shock Resistance, points 23 to 25
7.2

Alloy Composition


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Aluminum (Al), % 88 to 91.4
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
56.5 to 59
Cadmium (Cd), % 0
0 to 0.0020
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.2
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.15
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
41 to 43
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 5.1 to 6.1
0 to 0.0010
Residuals, % 0 to 0.15
0