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Solder Alloy 137 vs. C14700 Copper

Solder alloy 137 belongs to the otherwise unclassified metals classification, while C14700 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is solder alloy 137 and the bottom bar is C14700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 24
120
Elongation at Break, % 19
9.1 to 35
Poisson's Ratio 0.42
0.34
Shear Modulus, GPa 8.3
43
Tensile Strength: Ultimate (UTS), MPa 34
240 to 320

Thermal Properties

Latent Heat of Fusion, J/g 33
210
Melting Completion (Liquidus), °C 270
1080
Melting Onset (Solidus), °C 190
1070
Specific Heat Capacity, J/kg-K 150
390
Thermal Conductivity, W/m-K 38
370
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
95
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
96

Otherwise Unclassified Properties

Base Metal Price, % relative 85
30
Density, g/cm3 10
8.9
Embodied Carbon, kg CO2/kg material 6.3
2.6
Embodied Energy, MJ/kg 100
41
Embodied Water, L/kg 660
310

Common Calculations

Stiffness to Weight: Axial, points 1.3
7.2
Stiffness to Weight: Bending, points 9.2
18
Strength to Weight: Axial, points 0.9
7.3 to 10
Strength to Weight: Bending, points 2.2
9.5 to 12
Thermal Diffusivity, mm2/s 25
110
Thermal Shock Resistance, points 3.7
8.4 to 12

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.5 to 3.0
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.080
99.395 to 99.798
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 75.9 to 80
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.0020 to 0.0050
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0.2 to 0.5
Tin (Sn), % 19.5 to 20.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.1