Magnesium AZ31B-T1 (UNS M11312)
Magnesium AZ31B-T1 is a lightweight wrought magnesium-aluminum-zinc alloy known for its excellent strength-to-weight ratio, corrosion resistance, and good weldability. It is widely used in structural and high-performance applications where weight reduction is critical, particularly in the automotive, aerospace, and marine industries.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Aluminum | 2.5% | 3.5% |
| Zinc | 0.5% | 1.5% |
The following table provides a list of magnesium AZ31B-T1 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1780 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 241 - 290 MPa |
| Tensile Strength (Yield) | 150 - 220 MPa |
| Elongation at Break | 12 - 21% |
| Brinell Hardness | 46 - 73 |
| Thermal Properties | Metric |
| Melting Point | 605 - 630 °C |
| Solidus | 605 °C |
| Liquidus | 630 °C |
| Thermal Conductivity | 84 W/m·K |
| Specific Heat Capacity (Cp) | 1050 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Electrical Properties | Metric |
| Electrical Resistivity | 9.20×10-6 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 AZ31B-T1
| Advantages | Disadvantages |
|---|---|
| Lightweight | Low melting point |
| Strong | Poor machinability |
| Corrosion resistant | Poor machinability |
| Versatile | High cost |
Applications of Magnesium AZ31B-T1
AZ31B-T1 is a versatile magnesium alloy used across multiple industries for structural and functional components, including:
- Automotive: Used in a variety of automotive applications, including engine blocks, transmission housings, and body panels.
- Aerospace: Used in a variety of aerospace applications, including aircraft bodies, landing gear, and engine components.
- Marine: Used in a variety of marine applications, including boat hulls, deck structures, and engine components.
- Construction: Used in a variety of construction applications, including beams, columns, and roofing materials.
- Electrical: Used in a variety of electrical applications, including circuit boards, connectors, and housings.