EN 1.5510 Steel vs. EN 1.7725 Steel
Both EN 1.5510 steel and EN 1.7725 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.5510 steel and the bottom bar is EN 1.7725 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 190 | |
| 250 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 21 | |
| 14 |
| Fatigue Strength, MPa | 220 to 330 | |
| 390 to 550 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 450 to 1600 | |
| 830 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 310 to 520 | |
| 610 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 440 |
| 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 | 51 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 2.9 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.8 |
| Embodied Energy, MJ/kg | 19 | |
| 24 |
| Embodied Water, L/kg | 47 | |
| 54 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 46 to 260 | |
| 110 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 710 | |
| 980 to 1940 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 57 | |
| 29 to 35 |
| Strength to Weight: Bending, points | 17 to 39 | |
| 25 to 28 |
| Thermal Diffusivity, mm2/s | 14 | |
| 11 |
| Thermal Shock Resistance, points | 13 to 47 | |
| 24 to 29 |
Alloy Composition
| Boron (B), % | 0.00080 to 0.0050 | |
| 0 |
| Carbon (C), % | 0.25 to 0.3 | |
| 0.27 to 0.34 |
| Chromium (Cr), % | 0 to 0.3 | |
| 1.3 to 1.7 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 97.9 to 99.149 | |
| 95.7 to 97.5 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.3 to 0.5 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.050 to 0.15 |