ASTM A242 HSLA Steel vs. EN 1.0580 Steel
Both ASTM A242 HSLA steel and EN 1.0580 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is ASTM A242 HSLA steel and the bottom bar is EN 1.0580 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 22 | |
| 5.6 to 25 |
| Fatigue Strength, MPa | 230 | |
| 210 to 270 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 310 | |
| 340 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 490 | |
| 540 to 620 |
| Tensile Strength: Yield (Proof), MPa | 330 | |
| 290 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| 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 | 52 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 18 | |
| 18 |
| Embodied Water, L/kg | 46 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 95 | |
| 31 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 290 | |
| 230 to 540 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 | |
| 19 to 22 |
| Strength to Weight: Bending, points | 17 | |
| 19 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 14 | |
| 17 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.22 |
| Copper (Cu), % | 0.2 to 0.45 | |
| 0 |
| Iron (Fe), % | 98.2 to 99.8 | |
| 97.5 to 100 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.6 |
| Phosphorus (P), % | 0 to 0.15 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 0.55 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.045 |