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Grade 8 Babbitt Metal vs. ISO-WD32250 Magnesium

Grade 8 Babbitt Metal belongs to the otherwise unclassified metals classification, while ISO-WD32250 magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade 8 Babbitt Metal and the bottom bar is ISO-WD32250 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 24
45
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 8.5
17
Tensile Strength: Yield (Proof), MPa 23
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 46
340
Melting Completion (Liquidus), °C 270
600
Melting Onset (Solidus), °C 240
550
Specific Heat Capacity, J/kg-K 150
980
Thermal Conductivity, W/m-K 24
130
Thermal Expansion, µm/m-K 24
26

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 10
1.8
Embodied Carbon, kg CO2/kg material 3.9
24
Embodied Energy, MJ/kg 53
160
Embodied Water, L/kg 840
950

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 11
630 to 930
Stiffness to Weight: Axial, points 1.3
14
Stiffness to Weight: Bending, points 9.2
67
Thermal Diffusivity, mm2/s 16
72

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
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 77.1 to 81.2
0
Magnesium (Mg), % 0
94.9 to 97.1
Tin (Sn), % 4.5 to 5.5
0
Zinc (Zn), % 0 to 0.0050
2.5 to 4.0
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3