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| Wrought magnesium alloy HM31A | ||||
| Chemical composition: Th=3.0%, Mn=1.2% min., Mg balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 1.80 *10³ | kg/m³ | 112 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 45 | GPa | 6530 | ksi |
| Thermal expansion (20 ºC) | 26.0*10-6 | ºCˉ¹ | 14.4*10-6 | in/(in* ºF) |
| Specific heat capacity | 1000 | J/(kg*K) | 0.239 | BTU/(lb*ºF) |
| Thermal conductivity | 104 | W/(m*K) | 722 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 6.6*10-8 | Ohm*m | 6.6*10-6 | Ohm*cm |
| Tensile strength (F) | 290 | MPa | 42100 | psi |
| Yield strength (F) | 230 | MPa | 33400 | psi |
| Elongation (F) | 11 | % | 11 | % |
| Shear strength (F) | 150 | MPa | 21800 | psi |
| Tensile strength (T5) | 300 | MPa | 43500 | psi |
| Yield strength (T5) | 270 | MPa | 39200 | psi |
| Elongation (T5) | 10 | % | 10 | % |
| Shear strength (T5) | 185 | MPa | 26800 | psi |
| Annealing temperature | 425 | ºC | 795 | ºF |
| Liquidus temperature | 650 | ºC | 1202 | ºF |
| Solidus temperature | 605 | ºC | 1121 | ºF |