EN 1.1152 Steel vs. EN 1.7221 Steel
Both EN 1.1152 steel and EN 1.7221 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.1152 steel and the bottom bar is EN 1.7221 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 120 to 160 | |
| 200 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 22 | |
| 11 to 17 |
| Fatigue Strength, MPa | 190 to 300 | |
| 290 to 390 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 400 to 550 | |
| 650 to 780 |
| Tensile Strength: Yield (Proof), MPa | 270 to 440 | |
| 430 to 630 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 420 |
| 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 | 52 | |
| 44 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 2.4 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.5 |
| Embodied Energy, MJ/kg | 18 | |
| 20 |
| Embodied Water, L/kg | 46 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 41 to 110 | |
| 83 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 200 to 530 | |
| 490 to 1050 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 14 to 19 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 15 to 19 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 14 | |
| 12 |
| Thermal Shock Resistance, points | 13 to 17 | |
| 19 to 23 |
Alloy Composition
| Carbon (C), % | 0.18 to 0.22 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 98.6 to 99.52 | |
| 96.8 to 98.3 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.3 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |