EN 1.1221 Steel vs. EN 1.1147 Steel
Both EN 1.1221 steel and EN 1.1147 steel are iron alloys. Their average alloy composition is basically identical. There are 31 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 1.1221 steel and the bottom bar is EN 1.1147 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 250 | |
| 110 to 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 10 to 21 | |
| 12 to 17 |
| Fatigue Strength, MPa | 240 to 340 | |
| 180 to 250 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Shear Strength, MPa | 450 to 520 | |
| 280 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 870 | |
| 390 to 470 |
| Tensile Strength: Yield (Proof), MPa | 390 to 550 | |
| 280 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 48 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 18 |
| Embodied Water, L/kg | 47 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 67 to 130 | |
| 40 to 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 410 to 800 | |
| 210 to 370 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 31 | |
| 14 to 17 |
| Strength to Weight: Bending, points | 23 to 26 | |
| 15 to 17 |
| Thermal Diffusivity, mm2/s | 13 | |
| 14 |
| Thermal Shock Resistance, points | 23 to 28 | |
| 12 to 15 |
Alloy Composition
| Carbon (C), % | 0.57 to 0.65 | |
| 0.15 to 0.19 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 97.1 to 98.8 | |
| 98.3 to 99.25 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.025 |