| Magnesium, Mg; Annealed Sheet | |
|---|---|
| Categories: | MetalNonferrous MetalMagnesium AlloyPure Element |
| Material Notes: | Annealed applies only to tensile and/or hardness values; other property values are typical of the element. This entry is for pure Mg; MatWeb has over 125 Mg alloys entries too. Magnesium alloys are very low density (1.7 g/cc) and can be treated to reasonably high strengths. Magnesium alloys are available in both wrought and cast forms. Its low density Many Mg alloys are listed in MatWeb. |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.74 g/cc | 0.0629 lb/in³ | |||
Viscosity  | 1.13 cP @Temperature 700 °C | 1.13 cP @Temperature 1290 °F | |||
| 1.23 cP @Temperature 650 °C | 1.23 cP @Temperature 1200 °F | ||||
| a Lattice Constant | 3.209 Å | 3.209 Å | |||
| c Lattice Constant | 5.211 Å | 5.211 Å | |||
| Vapor Pressure | 1.51987e-020 bar @Temperature 25.000 °C | 1.00e-17 torr @Temperature 77.000 °F | |||
| 5.27e-14 bar @Temperature 127 °C | 3.95e-11 torr @Temperature 260 °F | ||||
| 0.00360 bar @Temperature 650 °C | 2.70 torr @Temperature 1200 °F | solid and liquid | |||
| Chemical Properties | Metric | English | Comments | ||
| Atomic Mass | 24.3050 | 24.3050 | 1995 | ||
| Atomic Number | 12 | 12 | |||
| Thermal Neutron Cross Section | 0.060 barns/atom | 0.060 barns/atom | |||
| X-ray Absorption Edge | 9.5117 Å | 9.5117 Å | K | ||
| 197.39 Å | 197.39 Å | LI | |||
| 247.92 Å | 247.92 Å | LII | |||
| 247.92 Å | 247.92 Å | LIII | |||
| Electrode Potential | -2.37 V | -2.37 V | |||
| Electronegativity | 1.31 | 1.31 | Pauling | ||
| Ionic Radius | 0.660 Å | 0.660 Å | Crystal Ionic Radius for Valence +2 | ||
| 0.820 Å | 0.820 Å | Crystal Ionic Radius for Valence +1 | |||
| Electrochemical Equivalent | 0.454 g/A/h | 0.454 g/A/h | |||
| Mechanical Properties | Metric | English | Comments | ||
| Hardness, Brinell | 40 | 40 | 500 kg load/10 mm ball | ||
| Tensile Strength, Ultimate | 160 – 196 MPa | 23200 – 28400 psi | |||
| Tensile Strength, Yield | 90.0 – 105 MPa | 13100 – 15200 psi | |||
| Elongation at Break | 3.0 – 15 % | 3.0 – 15 % | |||
| Modulus of Elasticity | 44.0 GPa | 6380 ksi | |||
| Compressive Yield Strength | 69.0 – 83.0 MPa | 10000 – 12000 psi | |||
| Poissons Ratio | 0.35 | 0.35 | |||
| Shear Modulus | 16.3 GPa | 2360 ksi | Calculated | ||
| Coefficient of Friction | 0.36 | 0.36 | versus magnesium at 20°C | ||
| Electrical Properties | Metric | English | Comments | ||
| Electrical Resistivity | 0.00000460 ohm-cm | 0.00000460 ohm-cm | |||
| Magnetic Permeability | 1.00001 | 1.00001 | |||
| Magnetic Susceptibility | 5.5e-7 | 5.5e-7 | cgs/g | ||
| Thermal Properties | Metric | English | Comments | ||
| Heat of Fusion | 371.8 J/g | 159.9 BTU/lb | |||
| Heat of Vaporization | 4760 J/g | 2050 BTU/lb | |||
| CTE, linear | 26.1 µm/m-°C @Temperature 20.0 – 100 °C | 14.5 µin/in-°F @Temperature 68.0 – 212 °F | |||
| 27.2 µm/m-°C @Temperature 250 °C | 15.1 µin/in-°F @Temperature 482 °F | ||||
| 29.6 µm/m-°C @Temperature 500 °C | 16.4 µin/in-°F @Temperature 932 °F | ||||
| Specific Heat Capacity | 1.025 J/g-°C | 0.2450 BTU/lb-°F | |||
| Thermal Conductivity | 159 W/m-K | 1100 BTU-in/hr-ft²-°F | |||
| Melting Point | 648.3 – 649.3 °C | 1199 – 1201 °F | |||
| Boiling Point | 1090 °C | 1990 °F | |||
| Optical Properties | Metric | English | Comments | ||
| Emissivity (0-1) | 0.070 @Temperature 22.0 °C | 0.070 @Temperature 71.6 °F | |||
| Reflection Coefficient, Visible (0-1) | 0.74 | 0.74 | at 1.00 micron | ||
| 0.72 – 0.77 | 0.72 – 0.77 | at 500 nm | |||
| 0.80 | 0.80 | at 3.0 micron | |||
| 0.93 | 0.93 | at 9.0 micron | |||
| Component Elements Properties | Metric | English | Comments | ||
| Magnesium, Mg | 100 % | 100 % | |||
| Descriptive Properties | |||||
| CAS Number | 7439-95-4 | ||||
| Crystal Structure | HCP | Space Group P63/mmc | |||
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