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Solder Alloy 141 vs. C70250 Copper

Solder alloy 141 belongs to the otherwise unclassified metals classification, while C70250 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 141 and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
120
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 13
44
Tensile Strength: Ultimate (UTS), MPa 54
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 46
220
Melting Completion (Liquidus), °C 190
1100
Melting Onset (Solidus), °C 180
1080
Specific Heat Capacity, J/kg-K 180
390
Thermal Conductivity, W/m-K 48
170
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
36 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 10
37 to 51

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 11
2.9
Embodied Energy, MJ/kg 180
45
Embodied Water, L/kg 970
310

Common Calculations

Stiffness to Weight: Axial, points 2.3
7.4
Stiffness to Weight: Bending, points 13
18
Strength to Weight: Axial, points 1.7
16 to 23
Strength to Weight: Bending, points 3.6
16 to 21
Thermal Diffusivity, mm2/s 29
49
Thermal Shock Resistance, points 4.3
18 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.0 to 3.0
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
92.7 to 97.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 35.9 to 38.5
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
2.2 to 4.2
Silicon (Si), % 0
0.25 to 1.2
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0 to 1.0
Residuals, % 0
0 to 0.5