EN 1.6580 Steel vs. EN 1.7233 Steel
Both EN 1.6580 steel and EN 1.7233 steel are iron alloys. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.6580 steel and the bottom bar is EN 1.7233 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 350 | |
| 210 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 19 | |
| 18 to 23 |
| Fatigue Strength, MPa | 310 to 610 | |
| 270 to 530 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 450 to 700 | |
| 450 to 590 |
| Tensile Strength: Ultimate (UTS), MPa | 720 to 1170 | |
| 700 to 960 |
| Tensile Strength: Yield (Proof), MPa | 460 to 990 | |
| 380 to 780 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 450 | |
| 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 | 40 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.8 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.3 | |
| 3.0 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 23 | |
| 21 |
| Embodied Water, L/kg | 59 | |
| 53 |
Common Calculations
| PREN (Pitting Resistance) | 3.3 | |
| 3.3 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 110 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 2590 | |
| 380 to 1630 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 41 | |
| 25 to 34 |
| Strength to Weight: Bending, points | 23 to 31 | |
| 22 to 28 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 21 to 34 | |
| 21 to 28 |
Alloy Composition
| Carbon (C), % | 0.26 to 0.34 | |
| 0.39 to 0.45 |
| Chromium (Cr), % | 1.8 to 2.2 | |
| 1.2 to 1.5 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 96.2 to 97.5 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.4 to 0.7 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0.5 to 0.7 |
| Nickel (Ni), % | 1.8 to 2.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.035 |