EN 1.7216 Steel vs. EN 1.1203 Steel
Both EN 1.7216 steel and EN 1.1203 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.7216 steel and the bottom bar is EN 1.1203 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 280 | |
| 200 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 23 | |
| 12 to 15 |
| Fatigue Strength, MPa | 290 to 440 | |
| 210 to 310 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 72 |
| Shear Strength, MPa | 410 to 560 | |
| 420 to 480 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 930 | |
| 690 to 780 |
| Tensile Strength: Yield (Proof), MPa | 400 to 690 | |
| 340 to 480 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 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 | 46 | |
| 48 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 | |
| 2.1 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.4 |
| Embodied Energy, MJ/kg | 20 | |
| 19 |
| Embodied Water, L/kg | 50 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 69 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 430 to 1280 | |
| 310 to 610 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 33 | |
| 25 to 28 |
| Strength to Weight: Bending, points | 21 to 27 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 12 | |
| 13 |
| Thermal Shock Resistance, points | 19 to 27 | |
| 22 to 25 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0.52 to 0.6 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0 to 0.4 |
| Iron (Fe), % | 97.2 to 98.4 | |
| 97.1 to 98.9 |
| Manganese (Mn), % | 0.35 to 0.6 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 | |
| 0 to 0.4 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.35 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.035 |