Austenitic Nodular Cast Iron vs. ASTM A229 Spring Steel
Both austenitic nodular cast iron and ASTM A229 spring steel are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 A229 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 240 | |
| 490 to 550 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 to 190 | |
| 190 |
| Elongation at Break, % | 6.8 to 34 | |
| 14 |
| 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 | |
| 1690 to 1890 |
| Tensile Strength: Yield (Proof), MPa | 190 to 240 | |
| 1100 to 1230 |
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 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 98 to 160 | |
| 3260 to 4080 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 24 |
| Strength to Weight: Axial, points | 15 to 18 | |
| 60 to 67 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 12 to 15 | |
| 54 to 60 |