ASTM A227 Spring Steel vs. Grade 7 Babbitt Metal
ASTM A227 spring steel belongs to the iron alloys classification, while grade 7 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 (15, in this case) are not shown.
For each property being compared, the top bar is ASTM A227 spring steel and the bottom bar is grade 7 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 500 to 640 | |
| 23 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 26 |
| Poisson's Ratio | 0.29 | |
| 0.4 |
| Shear Modulus, GPa | 72 | |
| 9.1 |
| Tensile Strength: Yield (Proof), MPa | 1430 to 1850 | |
| 25 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 48 |
| Melting Completion (Liquidus), °C | 1450 | |
| 270 |
| Melting Onset (Solidus), °C | 1410 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 150 |
| Thermal Expansion, µm/m-K | 12 | |
| 26 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 23 |
| Density, g/cm3 | 7.8 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 4.4 |
| Embodied Energy, MJ/kg | 19 | |
| 62 |
| Embodied Water, L/kg | 46 | |
| 880 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 1.4 |
| Stiffness to Weight: Bending, points | 24 | |
| 9.6 |
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), % | 0.45 to 0.85 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 97.4 to 99.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 71.9 to 76.4 |
| Manganese (Mn), % | 0.3 to 1.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 |
| Tin (Sn), % | 0 | |
| 9.3 to 10.7 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0050 |