EN 1.0234 Steel vs. SAE-AISI 1055 Steel
Both EN 1.0234 steel and SAE-AISI 1055 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.0234 steel and the bottom bar is SAE-AISI 1055 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 140 | |
| 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 29 | |
| 11 to 14 |
| Fatigue Strength, MPa | 170 to 270 | |
| 260 to 390 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 64 to 78 | |
| 34 to 45 |
| Shear Modulus, GPa | 73 | |
| 72 |
| Shear Strength, MPa | 260 to 300 | |
| 440 to 450 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 480 | |
| 730 to 750 |
| Tensile Strength: Yield (Proof), MPa | 220 to 410 | |
| 400 to 630 |
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 | 53 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 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 | 36 to 130 | |
| 80 to 85 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 440 | |
| 440 to 1070 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 12 to 17 | |
| 26 |
| Strength to Weight: Bending, points | 14 to 17 | |
| 23 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 11 to 15 | |
| 23 to 24 |
Alloy Composition
| Aluminum (Al), % | 0.020 to 0.060 | |
| 0 |
| Carbon (C), % | 0.13 to 0.17 | |
| 0.5 to 0.6 |
| Iron (Fe), % | 99.02 to 99.5 | |
| 98.4 to 98.9 |
| Manganese (Mn), % | 0.35 to 0.6 | |
| 0.6 to 0.9 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.050 |