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Solder Alloy 103 vs. R31233 Cobalt

Solder alloy 103 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 (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 103 and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
220
Elongation at Break, % 47
17
Poisson's Ratio 0.39
0.29
Shear Modulus, GPa 13
85
Tensile Strength: Ultimate (UTS), MPa 52
1020

Thermal Properties

Latent Heat of Fusion, J/g 45
320
Melting Completion (Liquidus), °C 190
1350
Melting Onset (Solidus), °C 180
1330
Specific Heat Capacity, J/kg-K 180
440
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 10
8.4
Embodied Energy, MJ/kg 180
110
Embodied Water, L/kg 910
480

Common Calculations

Stiffness to Weight: Axial, points 2.3
14
Stiffness to Weight: Bending, points 12
23
Strength to Weight: Axial, points 1.6
33
Strength to Weight: Bending, points 3.5
26
Thermal Diffusivity, mm2/s 30
3.2
Thermal Shock Resistance, points 4.3
25

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), % 0 to 0.1
0
Boron (B), % 0
0 to 0.015
Cadmium (Cd), % 0 to 0.0020
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), % 38.8 to 40.5
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), % 59.5 to 60.5
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0