Grade 2 Babbitt Metal vs. R30605 Cobalt

Grade 2 Babbitt Metal belongs to the otherwise unclassified metals classification, while R30605 cobalt belongs to the cobalt alloys. There are 15 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 grade 2 Babbitt Metal and the bottom bar is R30605 cobalt.

Grade 2 (L13890) Tin-Base Babbitt Metal UNS R30605 (L605, Alloy 25, 2.4964) Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		53
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.35
Poisson's Ratio		0.29

Shear Modulus, GPa		19
Shear Modulus, GPa		81

Tensile Strength: Yield (Proof), MPa		42
Tensile Strength: Yield (Proof), MPa		470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g		72
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		350
Melting Completion (Liquidus), °C		1410

Melting Onset (Solidus), °C		240
Melting Onset (Solidus), °C		1330

Specific Heat Capacity, J/kg-K		230
Specific Heat Capacity, J/kg-K		410

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		7.3
Density, g/cm³		9.6

Embodied Carbon, kg CO₂/kg material		12
Embodied Carbon, kg CO₂/kg material		9.8

Embodied Energy, MJ/kg		200
Embodied Energy, MJ/kg		140

Embodied Water, L/kg		1240
Embodied Water, L/kg		450

Common Calculations

Stiffness to Weight: Axial, points		4.0
Stiffness to Weight: Axial, points		12

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		21

Alloy Composition

Aluminum (Al), %		0 to 0.0050
Aluminum (Al), %		0

Antimony (Sb), %		7.0 to 8.0
Antimony (Sb), %		0

Arsenic (As), %		0 to 0.1
Arsenic (As), %		0

Bismuth (Bi), %		0 to 0.080
Bismuth (Bi), %		0

Cadmium (Cd), %		0 to 0.050
Cadmium (Cd), %		0

Carbon (C), %		0
Carbon (C), %		0.050 to 0.15

Chromium (Cr), %		0
Chromium (Cr), %		19 to 21

Cobalt (Co), %		0
Cobalt (Co), %		46.4 to 57

Copper (Cu), %		3.0 to 4.0
Copper (Cu), %		0

Iron (Fe), %		0 to 0.080
Iron (Fe), %		0 to 3.0

Lead (Pb), %		0 to 0.35
Lead (Pb), %		0

Manganese (Mn), %		0
Manganese (Mn), %		1.0 to 2.0

Nickel (Ni), %		0
Nickel (Ni), %		9.0 to 11

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		0 to 0.4

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

Tin (Sn), %		87.3 to 90
Tin (Sn), %		0

Tungsten (W), %		0
Tungsten (W), %		14 to 16

Zinc (Zn), %		0 to 0.0050
Zinc (Zn), %		0