Magnesium AZ31C-F (UNS M11312)

Image of Magnesium AZ31C-F bars
Credit: CSIRO, CC BY 3.0, via Wikimedia Commons

AZ31C-F is a magnesium alloy that is commonly used in aerospace, automotive, and electronic applications. It is a lightweight, strong, and corrosion-resistant alloy that is also relatively easy to machine.

Chemical Composition
ElementMinMax
MagnesiumRemainder
Aluminum2.4%3.6%
Copper0.10%
Manganese0.15%
Nickel0.03%
Silicon0.10%
Zinc0.50%1.5%

The following table provides a list of magnesium AZ31C-F properties in both SI and US customary/Imperial units.

Click on the icon to switch between Metric and Imperial units.

Table of Magnesium AZ31C-F Properties
Physical Properties
Metric
Density1770 kg/m3
Mechanical PropertiesMetric
Tensile Strength (Ultimate)260 MPa
Tensile Strength (Yield)200 MPa
Compressive Strength (Yield)97 MPa
Bearing Strength (Ultimate)385 MPa
Bearing Strength (Yield)230 MPa
Shear Strength130 MPa
Young’s Modulus (E)45 GPa
Shear Modulus (G)17 GPa
Elongation at Break in 50 mm15%
Poisson’s Ratio (ν)0.35
Brinell Hardness 500 kg load, 10 mm ball49
Charpy Impact V-notch4.30 J
Thermal PropertiesMetric
Melting Point605 - 630 °C
Solidus605 °C
Liquidus630 °C
Thermal Conductivity96 W/m·K
Specific Heat Capacity (Cp)1000 J/kg·K
Coefficient of Thermal Expansion (αL)26.0 1/°C
Heat of Fusion340 J/g
Electrical PropertiesMetric
Electrical Resistivity9.20×10-6 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 AZ31C-F

AdvantagesDisadvantages
High strength-to-weight ratioCorrosion susceptibility
Good formabilityLimited temperature resistance
Excellent damping capacityLower strength compared to some other structural alloys
Good impact resistanceHigher cost compared to some other alloys

Applications of Magnesium AZ31C-F

Magnesium AZ31C-F finds application in various industries due to its specific properties. Here are some common applications of Magnesium AZ31C-F:

  • Aerospace: Magnesium AZ31C-F is used in aerospace components, such as aircraft interiors, seat frames, brackets, and lightweight structural parts.
  • Automotive: The automotive industry utilizes Magnesium AZ31C-F for lightweight parts, including engine components, transmission cases, steering wheels, instrument panels, and door frames.
  • Electronics: Magnesium AZ31C-F is employed in electronic devices, including laptops, tablets, smartphones, and cameras. It is used for casings, frames, and other components where weight reduction is essential without compromising structural integrity.
  • Sporting Goods: The alloy is utilized in sporting goods like golf club heads, tennis racquets, and bicycle frames. Its lightweight properties contribute to better maneuverability and performance.
  • Medical Equipment: Magnesium AZ31C-F is suitable for medical equipment and devices due to its biocompatibility and lightweight nature. It is used in applications such as orthopedic implants, surgical instruments, and braces.
  • Consumer Goods: Magnesium AZ31C-F is employed in various consumer goods, including hand tools, luggage frames, and camping equipment, due to its lightweight and durable characteristics.
  • Defense and Military: The alloy finds use in defense and military applications, such as lightweight armor plates, weapon components, and military vehicle parts.
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