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Solder Alloy 181 vs. C67500 Bronze

Solder alloy 181 belongs to the otherwise unclassified metals classification, while C67500 bronze belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is C67500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
100
Elongation at Break, % 41
14 to 33
Poisson's Ratio 0.44
0.3
Shear Modulus, GPa 6.1
40
Tensile Strength: Ultimate (UTS), MPa 27
430 to 580

Thermal Properties

Latent Heat of Fusion, J/g 26
170
Melting Completion (Liquidus), °C 310
890
Melting Onset (Solidus), °C 300
870
Specific Heat Capacity, J/kg-K 130
390
Thermal Conductivity, W/m-K 24
110
Thermal Expansion, µm/m-K 29
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
24
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
27

Otherwise Unclassified Properties

Density, g/cm3 11
8.0
Embodied Carbon, kg CO2/kg material 6.2
2.8
Embodied Energy, MJ/kg 100
47

Common Calculations

Stiffness to Weight: Axial, points 0.86
7.3
Stiffness to Weight: Bending, points 7.7
20
Strength to Weight: Axial, points 0.66
15 to 20
Strength to Weight: Bending, points 1.8
16 to 19
Thermal Diffusivity, mm2/s 16
34
Thermal Shock Resistance, points 3.8
14 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.25
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
57 to 60
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0.8 to 2.0
Lead (Pb), % 96.2 to 98
0 to 0.2
Manganese (Mn), % 0
0.050 to 0.5
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0 to 0.25
0.5 to 1.5
Zinc (Zn), % 0 to 0.0010
35.1 to 41.7
Residuals, % 0
0 to 0.5