SAE-AISI H21 Steel vs. Grade 8 Babbitt Metal
SAE-AISI H21 steel belongs to the iron alloys classification, while grade 8 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 (9, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is grade 8 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 24 |
| Poisson's Ratio | 0.29 | |
| 0.41 |
| Shear Modulus, GPa | 76 | |
| 8.5 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 46 |
| Melting Completion (Liquidus), °C | 1630 | |
| 270 |
| Melting Onset (Solidus), °C | 1580 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 150 |
| Thermal Conductivity, W/m-K | 27 | |
| 24 |
| Thermal Expansion, µm/m-K | 11 | |
| 24 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 19 |
| Density, g/cm3 | 8.5 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 3.9 |
| Embodied Energy, MJ/kg | 68 | |
| 53 |
| Embodied Water, L/kg | 72 | |
| 840 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 1.3 |
| Stiffness to Weight: Bending, points | 23 | |
| 9.2 |
| Thermal Diffusivity, mm2/s | 7.1 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 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), % | 0.28 to 0.36 | |
| 0 |
| Chromium (Cr), % | 3.0 to 3.8 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 to 0.5 |
| Iron (Fe), % | 87.6 to 93.8 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 77.1 to 81.2 |
| Manganese (Mn), % | 0.15 to 0.4 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tin (Sn), % | 0 | |
| 4.5 to 5.5 |
| Tungsten (W), % | 8.5 to 10 | |
| 0 |
| Vanadium (V), % | 0.3 to 0.6 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0050 |