EN 1.6368 Steel vs. EN 1.1158 Steel
Both EN 1.6368 steel and EN 1.1158 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 1.6368 steel and the bottom bar is EN 1.1158 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 140 to 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 18 | |
| 23 to 24 |
| Fatigue Strength, MPa | 310 to 330 | |
| 170 to 220 |
| Impact Strength: V-Notched Charpy, J | 43 to 46 | |
| 28 to 40 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 410 to 430 | |
| 300 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 690 | |
| 470 to 500 |
| Tensile Strength: Yield (Proof), MPa | 460 to 490 | |
| 240 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 400 |
| 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 | 40 | |
| 49 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.4 | |
| 2.1 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 1.4 |
| Embodied Energy, MJ/kg | 22 | |
| 19 |
| Embodied Water, L/kg | 53 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 89 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 to 650 | |
| 150 to 250 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 24 | |
| 17 to 18 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 11 | |
| 13 |
| Thermal Shock Resistance, points | 20 | |
| 15 to 16 |
Alloy Composition
| Aluminum (Al), % | 0.015 to 0.040 | |
| 0 |
| Carbon (C), % | 0 to 0.17 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 0 to 0.3 | |
| 0 to 0.4 |
| Copper (Cu), % | 0.5 to 0.8 | |
| 0 |
| Iron (Fe), % | 95.1 to 97.2 | |
| 97.6 to 99.38 |
| Manganese (Mn), % | 0.8 to 1.2 | |
| 0.4 to 0.7 |
| Molybdenum (Mo), % | 0.25 to 0.5 | |
| 0 to 0.1 |
| Nickel (Ni), % | 1.0 to 1.3 | |
| 0 to 0.4 |
| Niobium (Nb), % | 0.015 to 0.045 | |
| 0 |
| Nitrogen (N), % | 0 to 0.020 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0.25 to 0.5 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.035 |