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Solder Alloy 716 vs. R31233 Cobalt

Solder alloy 716 belongs to the otherwise unclassified metals classification, while R31233 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 716 and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
220
Elongation at Break, % 13
17
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
85
Tensile Strength: Ultimate (UTS), MPa 39
1020

Thermal Properties

Latent Heat of Fusion, J/g 60
320
Melting Completion (Liquidus), °C 230
1350
Melting Onset (Solidus), °C 220
1330
Specific Heat Capacity, J/kg-K 220
440
Thermal Conductivity, W/m-K 60
12
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 16
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.6
Embodied Carbon, kg CO2/kg material 16
8.4
Embodied Energy, MJ/kg 270
110

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 1.5
33
Strength to Weight: Bending, points 3.5
26
Thermal Diffusivity, mm2/s 37
3.2
Thermal Shock Resistance, points 2.5
25

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
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), % 0.3 to 0.7
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), % 0 to 0.070
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), % 0.8 to 1.2
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 97.6 to 98.9
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0