EN 1.5024 +A Steel vs. EN 1.5026 +A Steel
Both EN 1.5024 +A steel and EN 1.5026 +A steel are iron alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.5024 +A steel and the bottom bar is EN 1.5026 +A steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 | |
| 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 21 | |
| 22 |
| Fatigue Strength, MPa | 280 | |
| 300 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 440 | |
| 460 |
| Tensile Strength: Ultimate (UTS), MPa | 710 | |
| 720 |
| Tensile Strength: Yield (Proof), MPa | 400 | |
| 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 50 | |
| 47 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.5 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 1.9 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.5 |
| Embodied Energy, MJ/kg | 19 | |
| 19 |
| Embodied Water, L/kg | 45 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 | |
| 480 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 | |
| 26 |
| Strength to Weight: Bending, points | 23 | |
| 23 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 21 | |
| 22 |
Alloy Composition
| Carbon (C), % | 0.42 to 0.5 | |
| 0.52 to 0.6 |
| Iron (Fe), % | 96.7 to 97.6 | |
| 96.5 to 97.3 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0.6 to 0.9 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 1.5 to 2.0 | |
| 1.6 to 2.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.025 |