ASTM A203 Steel vs. EN 1.4031 Stainless Steel
Both ASTM A203 steel and EN 1.4031 stainless steel are iron alloys. There are 30 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 A203 steel and the bottom bar is EN 1.4031 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 22 to 26 | |
| 11 to 13 |
| Fatigue Strength, MPa | 210 to 280 | |
| 220 to 400 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 76 |
| Shear Strength, MPa | 330 to 370 | |
| 400 to 540 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 590 | |
| 670 to 900 |
| Tensile Strength: Yield (Proof), MPa | 290 to 390 | |
| 390 to 730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 770 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1440 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 52 | |
| 30 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 to 7.6 | |
| 3.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.5 to 8.7 | |
| 3.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.2 to 4.0 | |
| 7.0 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.6 to 1.7 | |
| 1.9 |
| Embodied Energy, MJ/kg | 21 to 23 | |
| 27 |
| Embodied Water, L/kg | 50 to 52 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 77 to 94 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 410 | |
| 380 to 1360 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 24 to 32 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 14 | |
| 8.1 |
| Thermal Shock Resistance, points | 15 to 17 | |
| 23 to 32 |