EN 1.7779 Steel vs. EN 1.5414 Steel
Both EN 1.7779 steel and EN 1.5414 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.7779 steel and the bottom bar is EN 1.5414 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 240 | |
| 170 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 | |
| 22 |
| Fatigue Strength, MPa | 430 | |
| 250 to 270 |
| Impact Strength: V-Notched Charpy, J | 38 | |
| 46 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 500 | |
| 350 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 810 | |
| 550 to 580 |
| Tensile Strength: Yield (Proof), MPa | 660 | |
| 350 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 470 | |
| 410 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 | |
| 44 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.0 | |
| 2.6 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 41 | |
| 21 |
| Embodied Water, L/kg | 64 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1150 | |
| 320 to 370 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 29 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 25 | |
| 19 to 20 |
| Thermal Diffusivity, mm2/s | 11 | |
| 12 |
| Thermal Shock Resistance, points | 23 | |
| 16 to 17 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.040 | |
| 0 |
| Carbon (C), % | 0.17 to 0.23 | |
| 0 to 0.2 |
| Chromium (Cr), % | 3.0 to 3.3 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.3 |
| Iron (Fe), % | 93.8 to 95.4 | |
| 96.4 to 98.7 |
| Manganese (Mn), % | 0.3 to 0.5 | |
| 0.9 to 1.5 |
| Molybdenum (Mo), % | 0.5 to 0.6 | |
| 0.45 to 0.6 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.0050 |
| Vanadium (V), % | 0.45 to 0.55 | |
| 0 |