EN 1.0308 Steel vs. ASTM A203 Steel
Both EN 1.0308 steel and ASTM A203 steel are iron alloys.
For each property being compared, the top bar is EN 1.0308 steel and the bottom bar is ASTM A203 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 130 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 7.8 to 28 | |
| 22 to 26 |
| Fatigue Strength, MPa | 140 to 200 | |
| 210 to 280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 230 to 260 | |
| 330 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 360 to 440 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 190 to 340 | |
| 290 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 410 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 52 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.4 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.5 to 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 3.2 to 4.0 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.6 to 1.7 |
| Embodied Energy, MJ/kg | 18 | |
| 21 to 23 |
| Embodied Water, L/kg | 46 | |
| 50 to 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 32 to 95 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 93 to 300 | |
| 230 to 410 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 16 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 14 to 16 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 15 to 17 |