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Grade 7 Babbitt Metal vs. R30008 Cobalt

Grade 7 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30008 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 7 Babbitt Metal and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 26
210
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 9.1
83
Tensile Strength: Yield (Proof), MPa 25
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 48
320
Melting Completion (Liquidus), °C 270
1400
Melting Onset (Solidus), °C 240
1330
Specific Heat Capacity, J/kg-K 150
450
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
95
Density, g/cm3 10
8.4
Embodied Carbon, kg CO2/kg material 4.4
8.1
Embodied Energy, MJ/kg 62
110
Embodied Water, L/kg 880
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 12
590 to 2720
Stiffness to Weight: Axial, points 1.4
14
Stiffness to Weight: Bending, points 9.6
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 14 to 16
0
Arsenic (As), % 0.3 to 0.6
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 0.5
0
Iron (Fe), % 0 to 0.1
7.6 to 20
Lead (Pb), % 71.9 to 76.4
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), % 9.3 to 10.7
0
Zinc (Zn), % 0 to 0.0050
0