EN 1.7710 Steel vs. EN 1.6554 Steel
Both EN 1.7710 steel and EN 1.6554 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.7710 steel and the bottom bar is EN 1.6554 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 320 | |
| 230 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.8 to 11 | |
| 17 to 21 |
| Fatigue Strength, MPa | 500 to 620 | |
| 380 to 520 |
| Impact Strength: V-Notched Charpy, J | 30 | |
| 30 to 45 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 930 to 1070 | |
| 780 to 930 |
| Tensile Strength: Yield (Proof), MPa | 800 to 1060 | |
| 550 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 420 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 41 | |
| 40 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.5 | |
| 3.4 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.7 |
| Embodied Energy, MJ/kg | 30 | |
| 22 |
| Embodied Water, L/kg | 57 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 to 100 | |
| 140 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1680 to 2970 | |
| 810 to 1650 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 33 to 38 | |
| 27 to 33 |
| Strength to Weight: Bending, points | 27 to 30 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 27 to 31 | |
| 23 to 27 |
Alloy Composition
| Carbon (C), % | 0.12 to 0.18 | |
| 0.23 to 0.28 |
| Chromium (Cr), % | 1.3 to 1.8 | |
| 0.7 to 0.9 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 95.1 to 97 | |
| 94.6 to 97.3 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 0.8 to 1.0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 | |
| 1.0 to 2.0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Vanadium (V), % | 0.15 to 0.25 | |
| 0 to 0.030 |