EN 1.0303 Steel vs. SAE-AISI 1037 Steel
Both EN 1.0303 steel and SAE-AISI 1037 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.0303 steel and the bottom bar is SAE-AISI 1037 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 84 to 120 | |
| 160 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 25 | |
| 14 to 20 |
| Fatigue Strength, MPa | 150 to 230 | |
| 220 to 340 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 75 to 86 | |
| 40 to 45 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 220 to 260 | |
| 360 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 410 | |
| 580 to 640 |
| Tensile Strength: Yield (Proof), MPa | 200 to 320 | |
| 320 to 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 53 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.9 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.9 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| 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 | 30 to 94 | |
| 83 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 270 | |
| 270 to 780 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 10 to 15 | |
| 20 to 23 |
| Strength to Weight: Bending, points | 12 to 16 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 9.2 to 13 | |
| 18 to 20 |
Alloy Composition
| Aluminum (Al), % | 0.020 to 0.060 | |
| 0 |
| Carbon (C), % | 0.020 to 0.060 | |
| 0.32 to 0.38 |
| Iron (Fe), % | 99.335 to 99.71 | |
| 98.5 to 99 |
| Manganese (Mn), % | 0.25 to 0.4 | |
| 0.7 to 1.0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.050 |