AISI 440A Stainless Steel vs. ASTM A148 Cast Steel
Both AISI 440A stainless steel and ASTM A148 cast steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is ASTM A148 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 5.0 to 20 | |
| 5.7 to 25 |
| Fatigue Strength, MPa | 270 to 790 | |
| 280 to 670 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 1790 | |
| 630 to 1300 |
| Tensile Strength: Yield (Proof), MPa | 420 to 1650 | |
| 390 to 1160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 400 to 430 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 23 | |
| 37 to 47 |
| Thermal Expansion, µm/m-K | 10 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.3 to 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.3 to 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 2.3 to 3.3 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.5 to 1.7 |
| Embodied Energy, MJ/kg | 31 | |
| 20 to 22 |
| Embodied Water, L/kg | 120 | |
| 48 to 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 120 | |
| 71 to 150 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 65 | |
| 22 to 46 |
| Strength to Weight: Bending, points | 23 to 43 | |
| 21 to 34 |
| Thermal Diffusivity, mm2/s | 6.2 | |
| 9.9 to 13 |
| Thermal Shock Resistance, points | 26 to 65 | |
| 18 to 38 |