ASTM B817 Type II vs. Austenitic Nodular Cast Iron
ASTM B817 type II belongs to the titanium alloys classification, while austenitic nodular cast iron belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ASTM B817 type II and the bottom bar is austenitic nodular cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 180 to 190 |
| Elongation at Break, % | 3.0 to 13 | |
| 6.8 to 34 |
| Poisson's Ratio | 0.32 | |
| 0.29 to 0.3 |
| Shear Modulus, GPa | 40 | |
| 70 to 72 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 430 to 500 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 190 to 240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 280 to 350 |
| Melting Completion (Liquidus), °C | 1580 | |
| 1340 to 1400 |
| Melting Onset (Solidus), °C | 1530 | |
| 1300 to 1360 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 470 to 490 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 13 to 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 16 to 25 |
| Density, g/cm3 | 4.6 | |
| 7.7 to 8.0 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 3.5 to 4.9 |
| Embodied Energy, MJ/kg | 650 | |
| 48 to 68 |
| Embodied Water, L/kg | 220 | |
| 91 to 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 24 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 98 to 160 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 15 to 18 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 16 to 18 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 12 to 15 |