EN 1.5681 Steel vs. EN 1.6553 Steel
Both EN 1.5681 steel and EN 1.6553 steel are iron alloys. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.5681 steel and the bottom bar is EN 1.6553 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 210 to 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 19 to 21 |
| Fatigue Strength, MPa | 300 | |
| 330 to 460 |
| Impact Strength: V-Notched Charpy, J | 110 | |
| 30 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 710 to 800 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 470 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 420 |
| 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 | 48 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.9 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.0 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 5.0 | |
| 2.7 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 1.6 |
| Embodied Energy, MJ/kg | 25 | |
| 21 |
| Embodied Water, L/kg | 55 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 130 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 490 | |
| 600 to 1190 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 25 to 28 |
| Strength to Weight: Bending, points | 21 | |
| 23 to 24 |
| Thermal Diffusivity, mm2/s | 13 | |
| 10 |
| Thermal Shock Resistance, points | 19 | |
| 21 to 23 |
Alloy Composition
| Carbon (C), % | 0.060 to 0.12 | |
| 0.23 to 0.28 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.8 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 92.9 to 94.9 | |
| 95.6 to 98.2 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 0.4 to 0.8 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.025 |
| Vanadium (V), % | 0 | |
| 0 to 0.030 |