Magnesium AZ31B-H24 (UNS M11311)
AZ31B-H24 is a partially annealed and strain hardened magnesium alloy that offers a combination of good strength, light weight, and stiffness. It is commonly used in the aerospace industry for aircraft fuselage applications.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | Remainder | |
| Aluminum | 2.5% | 3.5% |
| Calcium | 0.04% | |
| Copper | 0.05% | |
| Iron | 0.005% | |
| Manganese | 0.20% | |
| Nickel | 0.005% | |
| Silicon | 0.10% | |
| Zinc | 0.6% | 1.4% |
The following table provides a list of magnesium AZ31B-H24 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1770 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 290 MPa |
| Tensile Strength (Yield) | 220 MPa |
| Compressive Strength (Yield) | 180 MPa |
| Bearing Strength (Ultimate) | 495 MPa |
| Bearing Strength (Yield) | 325 MPa |
| Shear Strength | 160 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 15% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 73 |
| Knoop Hardness Converted from Brinell | 96 |
| Machinability | 100% |
| Thermal Properties | Metric |
| Melting Point | 605 - 630 °C |
| Solidus | 605 °C |
| Liquidus | 630 °C |
| Thermal Conductivity | 96 W/m·K |
| Specific Heat Capacity (Cp) | 1000 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Heat of Fusion | 340 J/g |
| 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-H24
| Advantages | Disadvantages |
|---|---|
| Lightweight: Low density | Corrosion susceptibility |
| Excellent strength-to-weight ratio | Limited formability |
| Good mechanical properties | Higher cost |
| High damping capacity | Limited welding options |
| Recyclable | Limited availability |
Applications of Magnesium AZ31B-H24
Magnesium AZ31B-H24 has various applications across industries where lightweight, high-strength materials are desirable. Some common applications of Magnesium AZ31B-H24 include:
- Automotive Components: Magnesium AZ31B-H24 is used in automotive applications to reduce weight and improve fuel efficiency.
- Aerospace Industry: The aerospace sector utilizes Magnesium AZ31B-H24 for its lightweight properties. It is employed in aircraft and spacecraft applications, including seat frames, brackets, interior components, and lightweight structural elements.
- Electronics and Consumer Goods: Magnesium AZ31B-H24 is used in electronic devices and consumer goods due to its lightweight nature. It can be found in laptops, tablets, smartphones, cameras, and other portable electronic devices, as well as sporting goods, power tools, and other consumer products.
- Medical Equipment: Magnesium AZ31B-H24 finds application in medical equipment and devices. It is used in lightweight and ergonomic components such as surgical instruments, braces, orthopedic supports, and medical imaging equipment.
- Industrial and General Manufacturing: Magnesium AZ31B-H24 is utilized in various industrial applications where lightweight, high-strength materials are required. It can be used for machine parts, frames, housings, tooling, and other components.
- Defense and Military: Magnesium AZ31B-H24 is employed in defense and military applications due to its lightweight properties. It can be used in equipment and components such as weapon systems, armor plating, tactical gear, and aircraft parts.
- Renewable Energy: Magnesium AZ31B-H24 is used in renewable energy applications. It can be found in components of wind turbines, solar panels, and other renewable energy systems, where lightweight materials are needed to maximize efficiency and reduce installation costs.