to Cast magnesium alloys
to Properties of magnesium alloys
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| Cast magnesium alloy ZK51A | ||||
| Chemical composition: Zn=4.5%, Zr = 0.7% min, Mg balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 1.83 *10³ | kg/m³ | 114 | 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 | 1020 | J/(kg*K) | 0.244 | BTU/(lb*ºF) |
| Thermal conductivity | 110 | W/(m*K) | 763 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 6.2*10-8 | Ohm*m | 6.2*10-6 | Ohm*cm |
| Tensile strength (T5) | 276 | MPa | 40000 | psi |
| Yield strength (T5) | 165 | MPa | 24000 | psi |
| Elongation (T5) | 3 | % | 3 | % |
| Shear strength (T5) | 137 | MPa | 22000 | psi |
| Hardness (T5) | 50 | HB(500) | 65 | HB(500) |
| Aging temperature | 177 | ºC | 350 | ºF |
| Aging time | 12 | hrs. | 12 | hrs. |
| Liquidus temperature | 585 | ºC | 1085 | ºF |
| Solidus temperature | 549 | ºC | 1020 | ºF |