EN 1.7767 Steel vs. EN 1.1181 Steel
Both EN 1.7767 steel and EN 1.1181 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 1.7767 steel and the bottom bar is EN 1.1181 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 19 to 20 |
| Fatigue Strength, MPa | 320 to 340 | |
| 190 to 260 |
| Impact Strength: V-Notched Charpy, J | 46 | |
| 23 to 38 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 73 |
| Shear Strength, MPa | 420 to 430 | |
| 350 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 690 | |
| 560 to 620 |
| Tensile Strength: Yield (Proof), MPa | 460 to 500 | |
| 280 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 480 | |
| 400 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 40 | |
| 42 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.5 | |
| 2.1 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 33 | |
| 19 |
| Embodied Water, L/kg | 64 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 90 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 650 | |
| 210 to 380 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 24 | |
| 20 to 22 |
| Strength to Weight: Bending, points | 22 | |
| 19 to 21 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 19 to 21 |
Alloy Composition
| Carbon (C), % | 0.1 to 0.15 | |
| 0.32 to 0.39 |
| Chromium (Cr), % | 2.8 to 3.3 | |
| 0 to 0.4 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 93.8 to 95.8 | |
| 97.4 to 99.18 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 to 0.25 | |
| 0 to 0.4 |
| Niobium (Nb), % | 0 to 0.070 | |
| 0 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.035 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Vanadium (V), % | 0.2 to 0.3 | |
| 0 |