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R31539 Cobalt vs. Grade 1 Babbitt Metal

R31539 cobalt belongs to the cobalt alloys classification, while grade 1 Babbitt Metal belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is grade 1 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
53
Elongation at Break, % 13 to 22
34
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 86
20
Tensile Strength: Yield (Proof), MPa 590 to 940
30

Thermal Properties

Latent Heat of Fusion, J/g 320
70
Melting Completion (Liquidus), °C 1360
370
Melting Onset (Solidus), °C 1290
220
Specific Heat Capacity, J/kg-K 450
230
Thermal Conductivity, W/m-K 13
45
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
13
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
16

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.3
Embodied Carbon, kg CO2/kg material 8.2
12
Embodied Energy, MJ/kg 110
200
Embodied Water, L/kg 530
1160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
8.6
Stiffness to Weight: Axial, points 15
4.0
Stiffness to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 3.5
26

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0 to 0.0050
Antimony (Sb), % 0
4.0 to 5.0
Arsenic (As), % 0
0 to 0.1
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 0 to 0.75
0 to 0.080
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
0 to 0.35
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0
89.3 to 92
Zinc (Zn), % 0
0 to 0.0050