ASTM A302 Alloy Steel vs. EN 1.1127 Steel
Both ASTM A302 alloy steel and EN 1.1127 steel are iron alloys.
For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is EN 1.1127 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 190 | |
| 190 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 23 | |
| 14 to 25 |
| Fatigue Strength, MPa | 250 to 280 | |
| 280 to 370 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 370 to 390 | |
| 420 to 480 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 660 to 790 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 410 to 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 to 51 | |
| 49 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 to 7.4 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 to 8.4 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 2.1 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 19 |
| Embodied Water, L/kg | 48 to 50 | |
| 49 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 90 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 410 | |
| 440 to 880 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 23 to 28 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 10 to 14 | |
| 13 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 21 to 25 |