EN 1.7366 Steel vs. EN 1.7380 Steel
Both EN 1.7366 steel and EN 1.7380 steel are iron alloys. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.7366 steel and the bottom bar is EN 1.7380 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 210 | |
| 160 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 17 to 19 | |
| 19 to 20 |
| Fatigue Strength, MPa | 160 to 320 | |
| 200 to 230 |
| Impact Strength: V-Notched Charpy, J | 38 | |
| 31 to 35 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 74 |
| Shear Strength, MPa | 290 to 440 | |
| 330 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 710 | |
| 540 to 550 |
| Tensile Strength: Yield (Proof), MPa | 230 to 480 | |
| 290 to 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 510 | |
| 460 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 40 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.1 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.3 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.3 | |
| 3.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 1.8 |
| Embodied Energy, MJ/kg | 23 | |
| 23 |
| Embodied Water, L/kg | 69 | |
| 59 |
Common Calculations
| PREN (Pitting Resistance) | 6.8 | |
| 5.6 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 74 to 110 | |
| 87 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 600 | |
| 230 to 280 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 25 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 17 to 23 | |
| 19 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 15 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.18 | |
| 0.080 to 0.14 |
| Chromium (Cr), % | 4.0 to 6.0 | |
| 2.0 to 2.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 91.9 to 95.3 | |
| 94.6 to 96.6 |
| Manganese (Mn), % | 0.3 to 0.8 | |
| 0.4 to 0.8 |
| Molybdenum (Mo), % | 0.45 to 0.65 | |
| 0.9 to 1.1 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |