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Solder Alloy 503 vs. R30001 Cobalt

Solder alloy 503 belongs to the otherwise unclassified metals classification, while R30001 cobalt belongs to the cobalt alloys. There are 22 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 503 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 54
220
Elongation at Break, % 30
1.0
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 20
86
Tensile Strength: Ultimate (UTS), MPa 57
620

Thermal Properties

Latent Heat of Fusion, J/g 69
310
Melting Completion (Liquidus), °C 380
1530
Melting Onset (Solidus), °C 220
1260
Specific Heat Capacity, J/kg-K 230
430
Thermal Conductivity, W/m-K 61
15
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 17
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.0
Embodied Carbon, kg CO2/kg material 16
8.9
Embodied Energy, MJ/kg 270
130

Common Calculations

Stiffness to Weight: Axial, points 4.1
14
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 2.1
19
Strength to Weight: Bending, points 4.4
18
Thermal Diffusivity, mm2/s 35
3.7
Thermal Shock Resistance, points 3.5
19

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 0.080
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), % 5.5 to 6.5
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), % 0 to 0.070
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), % 1.8 to 2.2
0
Tin (Sn), % 90.8 to 92.7
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 0 to 0.0010
0