EN 1.4031 Stainless Steel vs. ISO-WD32350 Magnesium
EN 1.4031 stainless steel belongs to the iron alloys classification, while ISO-WD32350 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.4031 stainless steel and the bottom bar is ISO-WD32350 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 45 |
| Elongation at Break, % | 11 to 13 | |
| 5.7 to 10 |
| Fatigue Strength, MPa | 220 to 400 | |
| 120 to 130 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 18 |
| Shear Strength, MPa | 400 to 540 | |
| 150 to 170 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 900 | |
| 250 to 290 |
| Tensile Strength: Yield (Proof), MPa | 390 to 730 | |
| 140 to 180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 340 |
| Maximum Temperature: Mechanical, °C | 770 | |
| 95 |
| Melting Completion (Liquidus), °C | 1440 | |
| 600 |
| Melting Onset (Solidus), °C | 1400 | |
| 560 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 990 |
| Thermal Conductivity, W/m-K | 30 | |
| 130 |
| Thermal Expansion, µm/m-K | 11 | |
| 25 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
| 25 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
| 130 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 12 |
| Density, g/cm3 | 7.7 | |
| 1.7 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 23 |
| Embodied Energy, MJ/kg | 27 | |
| 160 |
| Embodied Water, L/kg | 100 | |
| 960 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 94 | |
| 14 to 23 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 1360 | |
| 210 to 380 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 25 | |
| 68 |
| Strength to Weight: Axial, points | 24 to 32 | |
| 39 to 46 |
| Strength to Weight: Bending, points | 22 to 27 | |
| 50 to 55 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 73 |
| Thermal Shock Resistance, points | 23 to 32 | |
| 16 to 18 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.1 |
| Carbon (C), % | 0.36 to 0.42 | |
| 0 |
| Chromium (Cr), % | 12.5 to 14.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Iron (Fe), % | 83 to 87.1 | |
| 0 to 0.060 |
| Magnesium (Mg), % | 0 | |
| 95.7 to 97.7 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.6 to 1.3 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 1.8 to 2.3 |
| Residuals, % | 0 | |
| 0 to 0.3 |