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R30021 Cobalt vs. Grade 3 Babbitt Metal

R30021 cobalt belongs to the cobalt alloys classification, while grade 3 Babbitt Metal belongs to the otherwise unclassified metals. There are 17 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 R30021 cobalt and the bottom bar is grade 3 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1300
120
Elastic (Young's, Tensile) Modulus, GPa 220
56
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 86
21
Tensile Strength: Yield (Proof), MPa 500
46

Thermal Properties

Latent Heat of Fusion, J/g 330
79
Melting Completion (Liquidus), °C 1350
420
Melting Onset (Solidus), °C 1190
240
Specific Heat Capacity, J/kg-K 450
230
Thermal Expansion, µm/m-K 11
21

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.4
Embodied Carbon, kg CO2/kg material 8.0
12
Embodied Energy, MJ/kg 110
200
Embodied Water, L/kg 520
1210

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 570
19
Stiffness to Weight: Axial, points 15
4.2
Stiffness to Weight: Bending, points 24
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
7.5 to 8.5
Arsenic (As), % 0
0 to 0.1
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0.2 to 0.35
0
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 61.7 to 67.3
0
Copper (Cu), % 0
7.5 to 8.5
Iron (Fe), % 0 to 3.0
0 to 0.080
Lead (Pb), % 0
0 to 0.35
Molybdenum (Mo), % 4.5 to 6.0
0
Nickel (Ni), % 2.0 to 3.0
0
Silicon (Si), % 0 to 1.5
0
Tin (Sn), % 0
82.3 to 85
Zinc (Zn), % 0
0 to 0.0050