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Grade 2 Babbitt Metal vs. R30001 Cobalt

Grade 2 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30001 cobalt belongs to the cobalt alloys. There are 15 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 R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 100
1930
Elastic (Young's, Tensile) Modulus, GPa 53
220
Poisson's Ratio 0.35
0.28
Shear Modulus, GPa 19
86

Thermal Properties

Latent Heat of Fusion, J/g 72
310
Melting Completion (Liquidus), °C 350
1530
Melting Onset (Solidus), °C 240
1260
Specific Heat Capacity, J/kg-K 230
430
Thermal Expansion, µm/m-K 21
11

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.0
Embodied Carbon, kg CO2/kg material 12
8.9
Embodied Energy, MJ/kg 200
130
Embodied Water, L/kg 1240
460

Common Calculations

Stiffness to Weight: Axial, points 4.0
14
Stiffness to Weight: Bending, points 17
22

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
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.080
0 to 3.0
Lead (Pb), % 0 to 0.35
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tin (Sn), % 87.3 to 90
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 0 to 0.0050
0