EQ21A Magnesium vs. SAE-AISI 1213 Steel
EQ21A magnesium belongs to the magnesium alloys classification, while SAE-AISI 1213 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 EQ21A magnesium and the bottom bar is SAE-AISI 1213 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 80 | |
| 140 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 44 | |
| 190 |
| Elongation at Break, % | 2.4 | |
| 11 to 29 |
| Fatigue Strength, MPa | 110 | |
| 200 to 290 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 17 | |
| 73 |
| Shear Strength, MPa | 150 | |
| 290 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 250 | |
| 440 to 600 |
| Tensile Strength: Yield (Proof), MPa | 190 | |
| 260 to 470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 340 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 400 |
| Melting Completion (Liquidus), °C | 640 | |
| 1460 |
| Melting Onset (Solidus), °C | 560 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 980 | |
| 470 |
| Thermal Conductivity, W/m-K | 110 | |
| 51 |
| Thermal Expansion, µm/m-K | 27 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 25 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 1.8 |
| Density, g/cm3 | 1.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 1.4 |
| Embodied Energy, MJ/kg | 210 | |
| 18 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.6 | |
| 63 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 410 | |
| 180 to 580 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 63 | |
| 24 |
| Strength to Weight: Axial, points | 37 | |
| 16 to 21 |
| Strength to Weight: Bending, points | 47 | |
| 17 to 20 |
| Thermal Diffusivity, mm2/s | 62 | |
| 14 |
| Thermal Shock Resistance, points | 15 | |
| 14 to 19 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.13 |
| Copper (Cu), % | 0.050 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 | |
| 98.4 to 99 |
| Magnesium (Mg), % | 93.9 to 96.8 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.7 to 1.0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.070 to 0.12 |
| Silver (Ag), % | 1.3 to 1.7 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0.24 to 0.33 |
| Unspecified Rare Earths, % | 1.5 to 3.0 | |
| 0 |
| Zirconium (Zr), % | 0.4 to 1.0 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |