EN 1.6580 Steel vs. EN 1.7711 Steel
Both EN 1.6580 steel and EN 1.7711 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 1.7711 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 350 | |
| 210 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 19 | |
| 16 to 22 |
| Fatigue Strength, MPa | 310 to 610 | |
| 290 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 450 to 700 | |
| 440 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 720 to 1170 | |
| 690 to 930 |
| Tensile Strength: Yield (Proof), MPa | 460 to 990 | |
| 400 to 800 |
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 | |
| 33 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
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 | |
| 2.3 |
| Embodied Energy, MJ/kg | 23 | |
| 32 |
| Embodied Water, L/kg | 59 | |
| 54 |
Common Calculations
| PREN (Pitting Resistance) | 3.3 | |
| 2.9 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 130 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 2590 | |
| 430 to 1690 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 41 | |
| 24 to 33 |
| Strength to Weight: Bending, points | 23 to 31 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 11 | |
| 8.9 |
| Thermal Shock Resistance, points | 21 to 34 | |
| 24 to 32 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0.26 to 0.34 | |
| 0.36 to 0.44 |
| Chromium (Cr), % | 1.8 to 2.2 | |
| 0.9 to 1.2 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 96 to 97.5 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.45 to 0.85 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0.5 to 0.65 |
| 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 0.030 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.35 |