EN 1.0303 Steel vs. ASTM A372 Grade M Steel
Both EN 1.0303 steel and ASTM A372 grade M steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.0303 steel and the bottom bar is ASTM A372 grade M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 84 to 120 | |
| 240 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 25 | |
| 18 to 21 |
| Fatigue Strength, MPa | 150 to 230 | |
| 450 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 220 to 260 | |
| 510 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 410 | |
| 810 to 910 |
| Tensile Strength: Yield (Proof), MPa | 200 to 320 | |
| 660 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 450 |
| 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 | |
| 46 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.9 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.9 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 5.0 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.0 |
| Embodied Energy, MJ/kg | 18 | |
| 27 |
| Embodied Water, L/kg | 46 | |
| 61 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 94 | |
| 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 270 | |
| 1140 to 1580 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 10 to 15 | |
| 29 to 32 |
| Strength to Weight: Bending, points | 12 to 16 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 14 | |
| 12 |
| Thermal Shock Resistance, points | 9.2 to 13 | |
| 24 to 27 |
Alloy Composition
| Aluminum (Al), % | 0.020 to 0.060 | |
| 0 |
| Carbon (C), % | 0.020 to 0.060 | |
| 0 to 0.23 |
| Chromium (Cr), % | 0 | |
| 1.5 to 2.0 |
| Iron (Fe), % | 99.335 to 99.71 | |
| 92.5 to 95.1 |
| Manganese (Mn), % | 0.25 to 0.4 | |
| 0.2 to 0.4 |
| Molybdenum (Mo), % | 0 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 0 | |
| 2.8 to 3.9 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.010 |
| Vanadium (V), % | 0 | |
| 0 to 0.080 |