EN 1.0303 Steel vs. EV31A Magnesium
EN 1.0303 steel belongs to the iron alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is EN 1.0303 steel and the bottom bar is EV31A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 84 to 120 | |
| 70 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 44 |
| Elongation at Break, % | 12 to 25 | |
| 3.5 |
| Fatigue Strength, MPa | 150 to 230 | |
| 120 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 73 | |
| 17 |
| Shear Strength, MPa | 220 to 260 | |
| 170 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 410 | |
| 260 |
| Tensile Strength: Yield (Proof), MPa | 200 to 320 | |
| 170 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 400 | |
| 200 |
| Melting Onset (Solidus), °C | 1430 | |
| 590 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 1000 |
| Thermal Conductivity, W/m-K | 53 | |
| 86 |
| Thermal Expansion, µm/m-K | 12 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.9 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.9 | |
| 90 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 1.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 94 | |
| 8.1 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 270 | |
| 330 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 65 |
| Strength to Weight: Axial, points | 10 to 15 | |
| 40 |
| Strength to Weight: Bending, points | 12 to 16 | |
| 50 |
| Thermal Diffusivity, mm2/s | 14 | |
| 47 |
| Thermal Shock Resistance, points | 9.2 to 13 | |
| 16 |