Magnesium ZK51A-T5 (UNS M16510)
ZK51A-T5 is a premium magnesium alloy characterized by superior room-temperature strength, high yield strength, and notable ductility. It is widely utilized across aerospace, automotive, and industrial sectors due to its favorable mechanical properties and lightweight nature, enhancing performance and efficiency.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Copper | —— | 0.1% |
| Nickel | —— | 0.01% |
| Zinc | 3.6% | 5.5% |
| Zirconium | 0.5% | 1.0% |
The following table provides a list of magnesium ZK51A-T5 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1830 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 205 MPa |
| Tensile Strength (Yield) | 165 MPa |
| Compressive Strength (Ultimate) | 345 MPa |
| Compressive Strength (Yield) | 140 MPa |
| Bearing Strength (Ultimate) | 485 MPa |
| Bearing Strength (Yield) | 350 MPa |
| Fatigue Strength # of Cycles 1.0e+8 | 62 MPa |
| Shear Strength | 160 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 3.5% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 65 |
| Knoop Hardness Converted from Brinell | 88 |
| Rockwell Hardness | 72 |
| Vickers Hardness Converted from Brinell | 75 |
| Machinability | 100% |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 550 °C |
| Solidus | 560 °C |
| Liquidus | 640 °C |
| Thermal Conductivity | 110 W/m·K |
| Specific Heat Capacity (Cp) | 1020 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Heat of Fusion | 318 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 6.20×10-6 Ω·cm |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of Magnesium ZK51A-T5
| Advantages | Disadvantages |
|---|---|
| Good strength | Relatively expensive |
| Lightweight | Poor weldability |
| Good machinability | Can be brittle at low temperatures |
| Good corrosion resistance |
Applications of Magnesium ZK51A-T5
ZK51A-T5 is a versatile and high-performance alloy that is used in a wide range of applications, including:
- Aerospace: Used for highly stressed castings such as landing gear components, engine mounts, and structural parts.
- Military: Utilized for castings including gun mounts, armor plates, and other structural elements.
- Automotive: Applied in castings like engine blocks, transmission housings, and various structural components.
- Marine: Employed in castings such as boat hulls, propellers, and structural parts.
- Electronics: Used for components including heat sinks, housings, and other structural elements.