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Grade 2 Babbitt Metal vs. R31233 Cobalt

Grade 2 Babbitt Metal belongs to the otherwise unclassified metals classification, while R31233 cobalt belongs to the cobalt alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 2 Babbitt Metal and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
220
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 19
85
Tensile Strength: Yield (Proof), MPa 42
420

Thermal Properties

Latent Heat of Fusion, J/g 72
320
Melting Completion (Liquidus), °C 350
1350
Melting Onset (Solidus), °C 240
1330
Specific Heat Capacity, J/kg-K 230
440
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.6
Embodied Carbon, kg CO2/kg material 12
8.4
Embodied Energy, MJ/kg 200
110
Embodied Water, L/kg 1240
480

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 17
410
Stiffness to Weight: Axial, points 4.0
14
Stiffness to Weight: Bending, points 17
23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 7.0 to 8.0
0
Arsenic (As), % 0 to 0.1
0
Bismuth (Bi), % 0 to 0.080
0
Boron (B), % 0
0 to 0.015
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.080
1.0 to 5.0
Lead (Pb), % 0 to 0.35
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 87.3 to 90
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.0050
0