EN 1.5662 Steel vs. EN 1.7725 Steel
Both EN 1.5662 steel and EN 1.7725 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.5662 steel and the bottom bar is EN 1.7725 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 230 | |
| 250 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 14 |
| Fatigue Strength, MPa | 380 to 450 | |
| 390 to 550 |
| Impact Strength: V-Notched Charpy, J | 91 to 130 | |
| 34 to 35 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 750 | |
| 830 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 550 to 660 | |
| 610 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 440 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.7 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.8 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 2.9 |
| Density, g/cm3 | 8.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 1.8 |
| Embodied Energy, MJ/kg | 31 | |
| 24 |
| Embodied Water, L/kg | 63 | |
| 54 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 150 | |
| 110 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 810 to 1150 | |
| 980 to 1940 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 26 | |
| 29 to 35 |
| Strength to Weight: Bending, points | 23 | |
| 25 to 28 |
| Thermal Shock Resistance, points | 22 | |
| 24 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0.27 to 0.34 |
| Chromium (Cr), % | 0 | |
| 1.3 to 1.7 |
| Iron (Fe), % | 88.6 to 91.2 | |
| 95.7 to 97.5 |
| Manganese (Mn), % | 0.3 to 0.8 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0.3 to 0.5 |
| Nickel (Ni), % | 8.5 to 10 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.35 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 to 0.050 | |
| 0.050 to 0.15 |