EN 1.0225 Steel vs. EN 1.0308 Steel
Both EN 1.0225 steel and EN 1.0308 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.0225 steel and the bottom bar is EN 1.0308 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 140 | |
| 100 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.7 to 24 | |
| 7.8 to 28 |
| Fatigue Strength, MPa | 170 to 220 | |
| 140 to 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 280 to 290 | |
| 230 to 260 |
| Tensile Strength: Ultimate (UTS), MPa | 440 to 500 | |
| 360 to 440 |
| Tensile Strength: Yield (Proof), MPa | 230 to 380 | |
| 190 to 340 |
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 | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 18 | |
| 18 |
| Embodied Water, L/kg | 46 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 95 | |
| 32 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 390 | |
| 93 to 300 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 13 to 16 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 14 to 16 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 11 to 14 |
Alloy Composition
| Carbon (C), % | 0 to 0.21 | |
| 0 to 0.17 |
| Iron (Fe), % | 98 to 100 | |
| 98.2 to 100 |
| Manganese (Mn), % | 0 to 1.4 | |
| 0 to 1.2 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.35 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.045 | |
| 0 to 0.045 |