N08020 Stainless Steel vs. Ductile Cast Iron
Both N08020 stainless steel and ductile cast iron are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is N08020 stainless steel and the bottom bar is ductile cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 170 to 180 |
| Elongation at Break, % | 15 to 34 | |
| 2.1 to 20 |
| Poisson's Ratio | 0.28 | |
| 0.28 to 0.31 |
| Shear Modulus, GPa | 77 | |
| 64 to 70 |
| Shear Strength, MPa | 380 to 410 | |
| 420 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 610 to 620 | |
| 460 to 920 |
| Tensile Strength: Yield (Proof), MPa | 270 to 420 | |
| 310 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 290 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1160 |
| Melting Onset (Solidus), °C | 1360 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 490 |
| Thermal Conductivity, W/m-K | 12 | |
| 31 to 36 |
| Thermal Expansion, µm/m-K | 15 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.6 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 8.8 to 9.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 38 | |
| 1.9 |
| Density, g/cm3 | 8.2 | |
| 7.1 to 7.5 |
| Embodied Carbon, kg CO2/kg material | 6.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 92 | |
| 21 |
| Embodied Water, L/kg | 220 | |
| 43 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 170 | |
| 17 to 80 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 to 440 | |
| 280 to 1330 |
| Stiffness to Weight: Axial, points | 13 | |
| 12 to 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 to 26 |
| Strength to Weight: Axial, points | 21 | |
| 17 to 35 |
| Strength to Weight: Bending, points | 20 | |
| 18 to 29 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 8.9 to 10 |
| Thermal Shock Resistance, points | 15 | |
| 17 to 35 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 3.0 to 3.5 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Copper (Cu), % | 3.0 to 4.0 | |
| 0 |
| Iron (Fe), % | 29.9 to 44 | |
| 93.7 to 95.5 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 2.0 to 3.0 | |
| 0 |
| Nickel (Ni), % | 32 to 38 | |
| 0 |
| Niobium (Nb), % | 0 to 1.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.080 |
| Silicon (Si), % | 0 to 1.0 | |
| 1.5 to 2.8 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 |