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Solder Alloy 151 vs. R30001 Cobalt

Solder alloy 151 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 (2, in this case) are not shown.

For each property being compared, the top bar is solder alloy 151 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 39
220
Elongation at Break, % 37
1.0
Poisson's Ratio 0.37
0.28
Shear Modulus, GPa 14
86
Tensile Strength: Ultimate (UTS), MPa 46
620

Thermal Properties

Latent Heat of Fusion, J/g 47
310
Melting Completion (Liquidus), °C 150
1530
Melting Onset (Solidus), °C 150
1260
Specific Heat Capacity, J/kg-K 190
430
Thermal Conductivity, W/m-K 44
15
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.0
Embodied Carbon, kg CO2/kg material 9.2
8.9
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 920
460

Common Calculations

Stiffness to Weight: Axial, points 2.5
14
Stiffness to Weight: Bending, points 13
22
Strength to Weight: Axial, points 1.4
19
Strength to Weight: Bending, points 3.2
18
Thermal Diffusivity, mm2/s 26
3.7
Thermal Shock Resistance, points 3.2
19

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
Cadmium (Cd), % 17.5 to 18.5
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), % 30.3 to 33
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), % 49.5 to 50.5
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 0 to 0.0010
0