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Solder Alloy 137 vs. C68100 Brass

Solder alloy 137 belongs to the otherwise unclassified metals classification, while C68100 brass 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 C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 24
100
Elongation at Break, % 19
29
Poisson's Ratio 0.42
0.3
Shear Modulus, GPa 8.3
40
Tensile Strength: Ultimate (UTS), MPa 34
380

Thermal Properties

Latent Heat of Fusion, J/g 33
170
Melting Completion (Liquidus), °C 270
890
Melting Onset (Solidus), °C 190
870
Specific Heat Capacity, J/kg-K 150
390
Thermal Conductivity, W/m-K 38
98
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
24
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
27

Otherwise Unclassified Properties

Base Metal Price, % relative 85
23
Density, g/cm3 10
7.9
Embodied Carbon, kg CO2/kg material 6.3
2.8
Embodied Energy, MJ/kg 100
47
Embodied Water, L/kg 660
330

Common Calculations

Stiffness to Weight: Axial, points 1.3
7.3
Stiffness to Weight: Bending, points 9.2
20
Strength to Weight: Axial, points 0.9
13
Strength to Weight: Bending, points 2.2
15
Thermal Diffusivity, mm2/s 25
32
Thermal Shock Resistance, points 3.7
13

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
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
56 to 60
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0.25 to 1.3
Lead (Pb), % 75.9 to 80
0 to 0.050
Manganese (Mn), % 0
0.010 to 0.5
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.040 to 0.15
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 19.5 to 20.5
0.75 to 1.1
Zinc (Zn), % 0 to 0.0010
36.4 to 43
Residuals, % 0
0 to 0.5