EN 1.6554 Steel vs. EN 1.7380 Steel
Both EN 1.6554 steel and EN 1.7380 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is EN 1.7380 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 280 | |
| 160 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 17 to 21 | |
| 19 to 20 |
| Fatigue Strength, MPa | 380 to 520 | |
| 200 to 230 |
| Impact Strength: V-Notched Charpy, J | 30 to 45 | |
| 31 to 35 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 930 | |
| 540 to 550 |
| Tensile Strength: Yield (Proof), MPa | 550 to 790 | |
| 290 to 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 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 | 7.6 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.4 | |
| 3.8 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 1.8 |
| Embodied Energy, MJ/kg | 22 | |
| 23 |
| Embodied Water, L/kg | 53 | |
| 59 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 150 | |
| 87 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 810 to 1650 | |
| 230 to 280 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 33 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 19 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 23 to 27 | |
| 15 to 16 |
Alloy Composition
| Carbon (C), % | 0.23 to 0.28 | |
| 0.080 to 0.14 |
| Chromium (Cr), % | 0.7 to 0.9 | |
| 2.0 to 2.5 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.3 |
| Iron (Fe), % | 94.6 to 97.3 | |
| 94.6 to 96.6 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.4 to 0.8 |
| Molybdenum (Mo), % | 0.2 to 0.3 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 1.0 to 2.0 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.010 |
| Vanadium (V), % | 0 to 0.030 | |
| 0 |