EN 1.7233 Steel vs. EN 1.7711 Steel
Both EN 1.7233 steel and EN 1.7711 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.7233 steel and the bottom bar is EN 1.7711 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 290 | |
| 210 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 18 to 23 | |
| 16 to 22 |
| Fatigue Strength, MPa | 270 to 530 | |
| 290 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 450 to 590 | |
| 440 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 960 | |
| 690 to 930 |
| Tensile Strength: Yield (Proof), MPa | 380 to 780 | |
| 400 to 800 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 430 |
| 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 | 39 | |
| 33 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.5 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.0 | |
| 3.0 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 2.3 |
| Embodied Energy, MJ/kg | 21 | |
| 32 |
| Embodied Water, L/kg | 53 | |
| 54 |
Common Calculations
| PREN (Pitting Resistance) | 3.3 | |
| 2.9 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 200 | |
| 130 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 1630 | |
| 430 to 1690 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 34 | |
| 24 to 33 |
| Strength to Weight: Bending, points | 22 to 28 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 11 | |
| 8.9 |
| Thermal Shock Resistance, points | 21 to 28 | |
| 24 to 32 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0.39 to 0.45 | |
| 0.36 to 0.44 |
| Chromium (Cr), % | 1.2 to 1.5 | |
| 0.9 to 1.2 |
| Iron (Fe), % | 96.2 to 97.5 | |
| 96 to 97.5 |
| Manganese (Mn), % | 0.4 to 0.7 | |
| 0.45 to 0.85 |
| Molybdenum (Mo), % | 0.5 to 0.7 | |
| 0.5 to 0.65 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.35 |