EN 1.7703 Steel vs. EN 1.3558 Steel
Both EN 1.7703 steel and EN 1.3558 steel are iron alloys. They have 79% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is EN 1.7703 steel and the bottom bar is EN 1.3558 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 690 | |
| 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 490 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1810 |
| Melting Onset (Solidus), °C | 1430 | |
| 1760 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 410 |
| Thermal Conductivity, W/m-K | 39 | |
| 20 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 13 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.2 | |
| 45 |
| Density, g/cm3 | 7.9 | |
| 9.3 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 8.4 |
| Embodied Energy, MJ/kg | 35 | |
| 130 |
| Embodied Water, L/kg | 61 | |
| 90 |
Common Calculations
| PREN (Pitting Resistance) | 5.6 | |
| 35 |
| Stiffness to Weight: Axial, points | 13 | |
| 12 |
| Stiffness to Weight: Bending, points | 24 | |
| 21 |
| Strength to Weight: Axial, points | 24 | |
| 23 |
| Strength to Weight: Bending, points | 22 | |
| 20 |
| Thermal Diffusivity, mm2/s | 11 | |
| 5.3 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 22 |
Alloy Composition
| Carbon (C), % | 0.11 to 0.15 | |
| 0.7 to 0.8 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 3.9 to 4.3 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 0.3 |
| Iron (Fe), % | 94.6 to 96.4 | |
| 73.7 to 77.6 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 0.4 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 to 0.6 |
| Nickel (Ni), % | 0 to 0.25 | |
| 0 |
| Niobium (Nb), % | 0 to 0.070 | |
| 0 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 0 | |
| 17.5 to 19 |
| Vanadium (V), % | 0.25 to 0.35 | |
| 1.0 to 1.3 |