Austenitic Nodular Cast Iron vs. ASTM A227 Spring Steel
Both austenitic nodular cast iron and ASTM A227 spring steel are iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is austenitic nodular cast iron and the bottom bar is ASTM A227 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 240 | |
| 500 to 640 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 to 190 | |
| 190 |
| Elongation at Break, % | 6.8 to 34 | |
| 12 |
| Poisson's Ratio | 0.29 to 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 70 to 72 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 430 to 500 | |
| 1720 to 2220 |
| Tensile Strength: Yield (Proof), MPa | 190 to 240 | |
| 1430 to 1850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 to 350 | |
| 250 |
| Melting Completion (Liquidus), °C | 1340 to 1400 | |
| 1450 |
| Melting Onset (Solidus), °C | 1300 to 1360 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 to 490 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 to 14 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 to 25 | |
| 1.8 |
| Density, g/cm3 | 7.7 to 8.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.5 to 4.9 | |
| 1.4 |
| Embodied Energy, MJ/kg | 48 to 68 | |
| 19 |
| Embodied Water, L/kg | 91 to 120 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 140 | |
| 200 to 260 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 24 |
| Strength to Weight: Axial, points | 15 to 18 | |
| 61 to 79 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 41 to 48 |
| Thermal Shock Resistance, points | 12 to 15 | |
| 55 to 71 |