AWS BMg-1 vs. Grade 2 Babbitt Metal
AWS BMg-1 belongs to the magnesium alloys classification, while grade 2 Babbitt Metal belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (16, 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 AWS BMg-1 and the bottom bar is grade 2 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 47 | |
| 53 |
| Poisson's Ratio | 0.29 | |
| 0.35 |
| Shear Modulus, GPa | 18 | |
| 19 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 42 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 72 |
| Melting Completion (Liquidus), °C | 600 | |
| 350 |
| Melting Onset (Solidus), °C | 440 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 980 | |
| 230 |
| Thermal Expansion, µm/m-K | 26 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 70 |
| Density, g/cm3 | 1.8 | |
| 7.3 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 12 |
| Embodied Energy, MJ/kg | 160 | |
| 200 |
| Embodied Water, L/kg | 980 | |
| 1240 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 | |
| 17 |
| Stiffness to Weight: Axial, points | 14 | |
| 4.0 |
| Stiffness to Weight: Bending, points | 66 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 8.3 to 9.7 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 7.0 to 8.0 |
| Arsenic (As), % | 0 | |
| 0 to 0.1 |
| Beryllium (Be), % | 0.00020 to 0.00080 | |
| 0 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.080 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Copper (Cu), % | 0 to 0.050 | |
| 3.0 to 4.0 |
| Iron (Fe), % | 0 to 0.0050 | |
| 0 to 0.080 |
| Lead (Pb), % | 0 | |
| 0 to 0.35 |
| Magnesium (Mg), % | 86.1 to 89.8 | |
| 0 |
| Manganese (Mn), % | 0.15 to 1.5 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 0 to 0.050 | |
| 0 |
| Tin (Sn), % | 0 | |
| 87.3 to 90 |
| Zinc (Zn), % | 1.7 to 2.3 | |
| 0 to 0.0050 |
| Residuals, % | 0 to 0.3 | |
| 0 |