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Solder Alloy 136 vs. R31233 Cobalt

Solder alloy 136 belongs to the otherwise unclassified metals classification, while R31233 cobalt belongs to the cobalt alloys. There are 23 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 136 and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 25
220
Elongation at Break, % 19
17
Poisson's Ratio 0.42
0.29
Shear Modulus, GPa 8.9
85
Tensile Strength: Ultimate (UTS), MPa 34
1020

Thermal Properties

Latent Heat of Fusion, J/g 34
320
Melting Completion (Liquidus), °C 260
1350
Melting Onset (Solidus), °C 190
1330
Specific Heat Capacity, J/kg-K 150
440
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.1

Otherwise Unclassified Properties

Density, g/cm3 10
8.6
Embodied Carbon, kg CO2/kg material 6.8
8.4
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 680
480

Common Calculations

Stiffness to Weight: Axial, points 1.4
14
Stiffness to Weight: Bending, points 9.5
23
Strength to Weight: Axial, points 0.92
33
Strength to Weight: Bending, points 2.3
26
Thermal Diffusivity, mm2/s 26
3.2
Thermal Shock Resistance, points 3.6
25

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.5 to 2.0
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Boron (B), % 0
0 to 0.015
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
1.0 to 5.0
Lead (Pb), % 71.9 to 75
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0 to 0.010
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 24.5 to 25.5
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0