EN 1.0308 Steel vs. ASTM A302 Alloy Steel
Both EN 1.0308 steel and ASTM A302 alloy steel are iron alloys.
For each property being compared, the top bar is EN 1.0308 steel and the bottom bar is ASTM A302 alloy steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 130 | |
| 180 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 7.8 to 28 | |
| 20 to 23 |
| Fatigue Strength, MPa | 140 to 200 | |
| 250 to 280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 230 to 260 | |
| 370 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 360 to 440 | |
| 590 to 620 |
| Tensile Strength: Yield (Proof), MPa | 190 to 340 | |
| 350 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 | |
| 39 to 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.2 to 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.2 to 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 2.4 to 3.0 |
| Density, g/cm3 | 7.9 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.5 to 1.6 |
| Embodied Energy, MJ/kg | 18 | |
| 20 to 21 |
| Embodied Water, L/kg | 46 | |
| 48 to 50 |
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 | |
| 330 to 410 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 16 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 14 to 16 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 17 to 18 |