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Solder Alloy 502 vs. G-CoCr28 Cobalt

Solder alloy 502 belongs to the otherwise unclassified metals classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 502 and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
210
Elongation at Break, % 34
6.7
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
83
Tensile Strength: Ultimate (UTS), MPa 58
560

Thermal Properties

Latent Heat of Fusion, J/g 66
320
Melting Completion (Liquidus), °C 350
1330
Melting Onset (Solidus), °C 220
1270
Specific Heat Capacity, J/kg-K 230
470
Thermal Conductivity, W/m-K 47
8.5
Thermal Expansion, µm/m-K 22
14

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.1
Embodied Carbon, kg CO2/kg material 15
6.2
Embodied Energy, MJ/kg 260
84

Common Calculations

Stiffness to Weight: Axial, points 4.0
15
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.2
19
Strength to Weight: Bending, points 4.5
19
Thermal Diffusivity, mm2/s 28
2.2
Thermal Shock Resistance, points 3.6
14

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
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 3.5 to 4.5
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
9.7 to 24.5
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Silver (Ag), % 0.8 to 1.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 93.8 to 95.7
0
Zinc (Zn), % 0 to 0.0010
0