S17400 Stainless Steel vs. Grey Cast Iron
Both S17400 stainless steel and grey cast iron are iron alloys. They have 76% of their average alloy composition in common. There are 30 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 S17400 stainless steel and the bottom bar is grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 440 | |
| 160 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 180 |
| Elongation at Break, % | 11 to 21 | |
| 9.6 |
| Fatigue Strength, MPa | 380 to 670 | |
| 69 to 170 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 69 |
| Shear Strength, MPa | 570 to 830 | |
| 180 to 610 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 160 to 450 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 98 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1380 |
| Melting Onset (Solidus), °C | 1400 | |
| 1180 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 490 |
| Thermal Conductivity, W/m-K | 17 | |
| 46 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 1.9 |
| Density, g/cm3 | 7.8 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.5 |
| Embodied Energy, MJ/kg | 39 | |
| 21 |
| Embodied Water, L/kg | 130 | |
| 44 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 13 to 37 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 27 to 240 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 5.8 to 17 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 8.7 to 17 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 13 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 6.0 to 17 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 3.1 to 3.4 |
| Chromium (Cr), % | 15 to 17 | |
| 0 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 0 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 92.1 to 93.9 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.5 to 0.7 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 0 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.9 |
| Silicon (Si), % | 0 to 1.0 | |
| 2.5 to 2.8 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.15 |