Magnesium AZ91C-F (UNS M11914)
AZ91C-F is a high-performance cast magnesium alloy widely recognized for its excellent strength-to-weight ratio, good castability, and machinability. It is extensively used in industries requiring lightweight yet durable materials, particularly in automotive, aerospace, marine, and electronics sectors.
Looking to buy magnesium?
Check pricing and availability through our trusted partner:
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Magnesium | —— | Remainder |
| Aluminum | 8.1% | 9.3% |
| Copper | —— | 0.1% |
| Manganese | 0.13% | —— |
| Nickel | —— | 0.01% |
| Silicon | —— | 0.3% |
| Zinc | 0.4% | 1.0% |
The following table provides a list of magnesium AZ91C-F properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 1810 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 165 MPa |
| Tensile Strength (Yield) | 97 MPa |
| Bearing Strength (Ultimate) | 410 MPa |
| Bearing Strength (Yield) | 275 MPa |
| Fatigue Strength # of Cycles 1.0e+8 | 55 MPa |
| Young’s Modulus (E) | 45 GPa |
| Shear Modulus (G) | 17 GPa |
| Elongation at Break in 50 mm | 2.5% |
| Poisson’s Ratio (ν) | 0.35 |
| Brinell Hardness 500 kg load, 10 mm ball | 63 |
| Knoop Hardness Converted from Brinell | 84 |
| Rockwell Hardness | 66 |
| Vickers Hardness Converted from Brinell | 71 |
| Charpy Impact V-notch | 0.790 J |
| Thermal Properties | Metric |
| Melting Point Incipient Melting | ≥ 420 °C |
| Solidus | 470 °C |
| Liquidus | 595 °C |
| Thermal Conductivity | 72.7 W/m·K |
| Specific Heat Capacity (Cp) | 800 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 26.0 1/°C |
| Heat of Fusion | 373 J/g |
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 AZ91C-F
| Advantages | Disadvantages |
|---|---|
| Lightweight | Corrosion susceptibility |
| High strength-to-weight ratio | Lower melting point |
| Good castability | High reactivity |
| Excellent vibration damping properties | Limited temperature range |
| Good machinability | Higher cost |
| Good electromagnetic shielding | Limited availability |
Applications of Magnesium AZ91C-F
Magnesium AZ91C-F has various applications across industries where lightweight materials with adequate strength are required. Key applications include:
- Automotive Components: Used in manufacturing transmission cases, engine blocks, steering wheels, and structural parts.
- Aerospace Industry: Applied in aircraft interior parts, seat frames, brackets, and non-critical structural components for weight savings.
- Electronics and Communication Equipment: Utilized in laptops, tablets, and smartphones for its electromagnetic shielding capabilities.
- Sporting Goods: Found in golf club heads, bicycle frames, and lightweight camping gear due to its strength and low density.
- Hand Tools and Power Tools: Used in tool housings and components like wrenches and drills to reduce operator fatigue.
- Medical Devices: Applied in lightweight surgical instruments and implants within the medical field.
- Consumer Goods: Found in products like camera bodies, luggage frames, and portable electronics for durability and weight reduction.