EN 1.6220 Steel vs. EN 1.5681 Steel
Both EN 1.6220 steel and EN 1.5681 steel are iron alloys. They have a very high 95% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.6220 steel and the bottom bar is EN 1.5681 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 | |
| 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 23 to 25 | |
| 20 |
| Fatigue Strength, MPa | 240 to 250 | |
| 300 |
| Impact Strength: V-Notched Charpy, J | 49 to 57 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 550 to 580 | |
| 630 |
| Tensile Strength: Yield (Proof), MPa | 340 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 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 | 52 | |
| 48 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 9.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 5.0 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.9 |
| Embodied Energy, MJ/kg | 19 | |
| 25 |
| Embodied Water, L/kg | 48 | |
| 55 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 310 | |
| 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 19 to 20 | |
| 22 |
| Strength to Weight: Bending, points | 19 to 20 | |
| 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 16 to 17 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.23 | |
| 0.060 to 0.12 |
| Iron (Fe), % | 96.7 to 98.8 | |
| 92.9 to 94.9 |
| Manganese (Mn), % | 1.0 to 1.6 | |
| 0.5 to 0.8 |
| Nickel (Ni), % | 0 to 0.8 | |
| 4.5 to 5.5 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |