Magnesium AM100A-T7 (UNS M10100)

Magnesium AM100A-T7 is a heat-treated alloy known for its high strength-to-weight ratio, excellent machinability, and good corrosion resistance. Commonly used in demanding applications across automotive, aerospace, and marine industries, it offers a reliable balance of performance, durability, and ease of manufacturing.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Aluminum | 9.3% | 10.7% |
| Copper | —— | 0.10% |
| Manganese | 0.10% | —— |
| Nickel | —— | 0.01% |
| Silicon | —— | 0.30% |
| Zinc | —— | 0.30% |
The following table provides a list of magnesium AM100A-T7 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) | 260 MPa |
| Tensile Strength (Yield) | 125 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 1% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 67 |
| Knoop Hardness Converted from Brinell | 90 |
| Rockwell Hardness | 78 |
| Vickers Hardness Converted from Brinell | 77 |
| Machinability | 100% |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 430 °C |
| Solidus | 463 °C |
| Liquidus | 595 °C |
| Thermal Conductivity | 73 W/m·K |
| Specific Heat Capacity (Cp) | 1050 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 25.0 1/°C |
| Heat of Fusion | 372 J/g |
| Electrical Properties | Metric |
| Electrical Resistivity | 1.50×10-5 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 AM100A-T7
| Advantages | Disadvantages |
|---|---|
| Low density | Corrosion |
| Good strength | High cost |
| Good machinability | Limited availability |
| Good weldability |
Applications of Magnesium AM100A-T7
AM100A-T7 is suitable for demanding structural and mechanical environments across multiple industries, including:
- Automotive: Used in a variety of automotive applications, including engine blocks, cylinder heads, and suspension components.
- Aerospace: Used in a variety of aerospace applications, including aircraft frames, landing gear, and engine components.
- Marine: Used in a variety of marine applications, including boat hulls, propellers, and rudders.
- Machinery: Used in a variety of machinery applications, including machine tools, construction equipment, and agricultural machinery.
- Electrical equipment: Used in a variety of electrical equipment applications, including transformers, motors, and generators.
- Consumer goods: Used in a variety of consumer goods applications, including bicycles, furniture, and sporting goods.
