ASTM A217 Cast Steel vs. S21904 Stainless Steel
Both ASTM A217 cast steel and S21904 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is ASTM A217 cast steel and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 210 | |
| 210 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 21 to 27 | |
| 17 to 51 |
| Fatigue Strength, MPa | 200 to 320 | |
| 380 to 550 |
| Poisson's Ratio | 0.28 to 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 to 75 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 540 to 710 | |
| 700 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 270 to 460 | |
| 390 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 to 270 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 410 to 600 | |
| 980 |
| Melting Completion (Liquidus), °C | 1450 to 1460 | |
| 1400 |
| Melting Onset (Solidus), °C | 1410 to 1420 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 26 to 50 | |
| 14 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 to 9.2 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 to 11 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 7.0 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 2.1 | |
| 3.0 |
| Embodied Energy, MJ/kg | 20 to 28 | |
| 43 |
| Embodied Water, L/kg | 47 to 87 | |
| 160 |
Common Calculations
| PREN (Pitting Resistance) | 2.5 to 13 | |
| 25 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 160 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 570 | |
| 380 to 2070 |
| Stiffness to Weight: Axial, points | 13 to 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 25 | |
| 25 to 36 |
| Strength to Weight: Bending, points | 19 to 23 | |
| 23 to 29 |
| Thermal Diffusivity, mm2/s | 6.9 to 14 | |
| 3.8 |
| Thermal Shock Resistance, points | 16 to 20 | |
| 15 to 21 |