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Grade 7 Babbitt Metal vs. R30006 Cobalt

Grade 7 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30006 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is grade 7 Babbitt Metal and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 110
1520
Elastic (Young's, Tensile) Modulus, GPa 26
220
Poisson's Ratio 0.4
0.28
Shear Modulus, GPa 9.1
85
Tensile Strength: Yield (Proof), MPa 25
540

Thermal Properties

Latent Heat of Fusion, J/g 48
320
Melting Completion (Liquidus), °C 270
1400
Melting Onset (Solidus), °C 240
1290
Specific Heat Capacity, J/kg-K 150
450
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Density, g/cm3 10
8.6
Embodied Carbon, kg CO2/kg material 4.4
7.8
Embodied Energy, MJ/kg 62
110
Embodied Water, L/kg 880
500

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 12
670
Stiffness to Weight: Axial, points 1.4
14
Stiffness to Weight: Bending, points 9.6
23

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
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Lead (Pb), % 71.9 to 76.4
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tin (Sn), % 9.3 to 10.7
0
Tungsten (W), % 0
4.0 to 6.0
Zinc (Zn), % 0 to 0.0050
0