Magnesium HM31A-F (UNS M13312)
HM31A-F is a magnesium alloy that is used in a variety of applications, including aerospace, automotive, and industrial. It is known for its excellent weldability, good corrosion resistance, and high strength-to-weight ratio.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | Remainder | |
| Manganese | 1.2% | |
| Thorium | 2.5% | 3.5% |
The following table provides a list of magnesium HM31A-F properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1800 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 290 MPa |
| Tensile Strength (Yield) | 230 MPa |
| Compressive Strength (Yield) | 185 MPa |
| Bearing Strength (Ultimate) | 480 MPa |
| Bearing Strength (Yield) | 345 MPa |
| Shear Strength | 150 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 10% |
| Poisson’s Ratio (ν) | 0.35 |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 482 °C |
| Solidus | 605 °C |
| Liquidus | 650 °C |
| Thermal Conductivity | 104 W/m·K |
| Specific Heat Capacity (Cp) | 1000 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Heat of Fusion | 331 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 6.60×10-6 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 HM31A-F
| Advantages | Disadvantages |
|---|---|
| High strength | High cost |
| Good corrosion resistance | Low melting point |
| High strength-to-weight ratio | Poor fatigue strength |
| Easy to weld | Difficult to machine |
| Versatile | Limited availability |
Applications of Magnesium HM31A-F
Magnesium HM31A-F is a versatile alloy that can be used in a variety of applications. Some of the common applications of Magnesium HM31A-F:
- Aerospace industry: Magnesium HM31A-F is used to make aircraft parts, such as engine mounts, landing gear, and structural components.
- Automotive industry: Magnesium HM31A-F is used to make engine parts, such as pistons, connecting rods, and cylinder heads. It is also used to make body panels and wheels.
- Marine industry: Magnesium HM31A-F is used to make boat hulls, decks, and other parts. It is also used to make marine engines.
- Sporting goods industry: Magnesium HM31A-F is used to make bicycles, golf clubs, and other equipment.
- Tool industry: Magnesium HM31A-F is used to make hand tools, such as wrenches, screwdrivers, and hammers.
- Medical device industry: Magnesium HM31A-F is used to make implants, such as hip and knee replacements.