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Solder Alloy 124 vs. R30001 Cobalt

Solder alloy 124 belongs to the otherwise unclassified metals classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 124 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
220
Elongation at Break, % 46
1.0
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
86
Tensile Strength: Ultimate (UTS), MPa 27
620

Thermal Properties

Latent Heat of Fusion, J/g 24
310
Melting Completion (Liquidus), °C 330
1530
Melting Onset (Solidus), °C 320
1260
Specific Heat Capacity, J/kg-K 130
430
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 29
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
1.8

Otherwise Unclassified Properties

Density, g/cm3 11
9.0
Embodied Carbon, kg CO2/kg material 4.1
8.9
Embodied Energy, MJ/kg 68
130
Embodied Water, L/kg 470
460

Common Calculations

Stiffness to Weight: Axial, points 0.83
14
Stiffness to Weight: Bending, points 7.6
22
Strength to Weight: Axial, points 0.65
19
Strength to Weight: Bending, points 1.8
18
Thermal Diffusivity, mm2/s 15
3.7
Thermal Shock Resistance, points 3.9
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.12
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
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
0 to 3.0
Lead (Pb), % 97.2 to 98.2
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 1.8 to 2.2
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 0 to 0.0010
0