ASTM A387 Grade 91 Class 2 vs. Grade 7 Babbitt Metal
ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while grade 7 Babbitt Metal belongs to the otherwise unclassified metals. There are 18 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 ASTM A387 grade 91 class 2 and the bottom bar is grade 7 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 | |
| 23 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 26 |
| Poisson's Ratio | 0.28 | |
| 0.4 |
| Shear Modulus, GPa | 75 | |
| 9.1 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 25 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 48 |
| Melting Completion (Liquidus), °C | 1460 | |
| 270 |
| Melting Onset (Solidus), °C | 1420 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 150 |
| Thermal Expansion, µm/m-K | 13 | |
| 26 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 23 |
| Density, g/cm3 | 7.8 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 4.4 |
| Embodied Energy, MJ/kg | 37 | |
| 62 |
| Embodied Water, L/kg | 88 | |
| 880 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 12 |
| Stiffness to Weight: Axial, points | 14 | |
| 1.4 |
| Stiffness to Weight: Bending, points | 25 | |
| 9.6 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 14 to 16 |
| Arsenic (As), % | 0 | |
| 0.3 to 0.6 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.1 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 71.9 to 76.4 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0.2 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 9.3 to 10.7 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0050 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |