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Grade 15 Babbitt Metal vs. R30008 Cobalt

Grade 15 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30008 cobalt belongs to the cobalt alloys. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 15 Babbitt Metal and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 23
210
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 8.2
83

Thermal Properties

Latent Heat of Fusion, J/g 46
320
Melting Completion (Liquidus), °C 280
1400
Melting Onset (Solidus), °C 250
1330
Specific Heat Capacity, J/kg-K 140
450
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
95
Density, g/cm3 10
8.4
Embodied Carbon, kg CO2/kg material 3.6
8.1
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 840
400

Common Calculations

Stiffness to Weight: Axial, points 1.2
14
Stiffness to Weight: Bending, points 9.0
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 14.5 to 17.5
0
Arsenic (As), % 0.8 to 1.4
0
Bismuth (Bi), % 0 to 0.1
0
Boron (B), % 0
0 to 0.0010
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 0.1
7.6 to 20
Lead (Pb), % 79 to 83.9
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.8 to 1.2
0
Zinc (Zn), % 0 to 0.0050
0