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Grade 3 Babbitt Metal vs. AWS BCo-1

Grade 3 Babbitt Metal belongs to the otherwise unclassified metals classification, while AWS BCo-1 belongs to the cobalt alloys. There are 14 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 3 Babbitt Metal and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 56
200
Poisson's Ratio 0.35
0.3
Shear Modulus, GPa 21
78

Thermal Properties

Latent Heat of Fusion, J/g 79
420
Melting Completion (Liquidus), °C 420
1150
Melting Onset (Solidus), °C 240
1120
Specific Heat Capacity, J/kg-K 230
480
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.1
Embodied Carbon, kg CO2/kg material 12
8.0
Embodied Energy, MJ/kg 200
110
Embodied Water, L/kg 1210
430

Common Calculations

Stiffness to Weight: Axial, points 4.2
14
Stiffness to Weight: Bending, points 17
24

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.050
Antimony (Sb), % 7.5 to 8.5
0
Arsenic (As), % 0 to 0.1
0
Bismuth (Bi), % 0 to 0.080
0
Boron (B), % 0
0.7 to 0.9
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Copper (Cu), % 7.5 to 8.5
0
Iron (Fe), % 0 to 0.080
0 to 1.0
Lead (Pb), % 0 to 0.35
0
Nickel (Ni), % 0
16 to 18
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.5 to 8.5
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 82.3 to 85
0
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.0050
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5