EN 1.7149 Steel vs. EN 1.5805 Steel
Both EN 1.7149 steel and EN 1.5805 steel are iron alloys. They have a very high 99% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.7149 steel and the bottom bar is EN 1.5805 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 180 | |
| 140 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 1460 | |
| 460 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 430 |
| 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 | 46 | |
| 40 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 3.1 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.6 |
| Embodied Energy, MJ/kg | 19 | |
| 21 |
| Embodied Water, L/kg | 52 | |
| 53 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 18 to 52 | |
| 16 to 42 |
| Strength to Weight: Bending, points | 18 to 36 | |
| 17 to 32 |
| Thermal Diffusivity, mm2/s | 12 | |
| 11 |
| Thermal Shock Resistance, points | 15 to 42 | |
| 13 to 35 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.22 | |
| 0.070 to 0.12 |
| Chromium (Cr), % | 1.0 to 1.3 | |
| 0.9 to 1.2 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 to 0.25 |
| Iron (Fe), % | 96.5 to 97.7 | |
| 95.7 to 97.2 |
| Manganese (Mn), % | 1.1 to 1.4 | |
| 0.6 to 0.9 |
| Nickel (Ni), % | 0 | |
| 1.2 to 1.5 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.3 |
| Sulfur (S), % | 0.020 to 0.040 | |
| 0 to 0.025 |