Magnesium AZ92A-F (UNS M11920)

Image of Magnesium AZ92A-F bars
Credit: CSIRO, CC BY 3.0, via Wikimedia Commons

AZ92A-F is a magnesium alloy that is commonly used for commercial and military pressure-tight sand and permanent-mold castings. It is a high-strength alloy with good ductility and castability.

Chemical Composition
ElementMinMax
MagnesiumRemainder
Aluminum8.3%9.7%
Copper0.25%
Manganese0.10%
Nickel0.01%
Silicon0.30%
Zinc1.6%2.4%

The following table provides a list of magnesium AZ92A-F properties in both SI and US customary/Imperial units.

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

Table of Magnesium AZ92A-F Properties
Physical Properties
Metric
Density1830 kg/m3
Mechanical PropertiesMetric
Tensile Strength (Ultimate)170 MPa
Tensile Strength (Yield)97 MPa
Bearing Strength (Ultimate)345 MPa
Bearing Strength (Yield)315 MPa
Fatigue Strength # of Cycles 1.0e+855 MPa
Shear Strength125 MPa
Young’s Modulus (E)45 GPa
Shear Modulus (G)17 GPa
Elongation at Break in 50 mm2%
Poisson’s Ratio (ν)0.35
Brinell Hardness 500 kg load, 10 mm ball65
Knoop Hardness Converted from Brinell88
Rockwell Hardness76
Vickers Hardness Converted from Brinell75
Machinability100%
Charpy Impact V-notch0.700 J
Thermal PropertiesMetric
Melting Point Incipient Melting≥ 410 °C
Solidus445 °C
Liquidus595 °C
Thermal Conductivity52.2 W/m·K
Specific Heat Capacity (Cp)1050 J/kg·K
Coefficient of Thermal Expansion (αL)26.0 1/°C
Heat of Fusion373 J/g
Electrical PropertiesMetric
Electrical Resistivity1.40×10-5 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 AZ92A-F

AdvantagesDisadvantages
High strengthLow melting point
Good ductility and toughnessCorrosion in sea water
Low densityHigh cost
Corrosion resistance in many environmentsDifficult to machine
Heat treatablePoor weldability

Applications of Magnesium AZ92A-F

Magnesium AZ92A-F is a versatile and reliable alloy that is used in a wide variety of applications. Some of the applications of Magnesium AZ92A-F include:

  • Automotive: Magnesium AZ92A-F is used in a variety of automotive components, including engine blocks, cylinder heads, and pistons.
  • Aerospace: Magnesium AZ92A-F is used in a variety of aerospace components, including aircraft structures, landing gear, and other parts.
  • Marine: Magnesium AZ92A-F is used in a variety of marine components, including boat hulls, propellers, and other parts.
  • Construction: Magnesium AZ92A-F is used in a variety of construction components, including structural beams, columns, and other parts.
  • Electrical: Magnesium AZ92A-F is used in a variety of electrical components, including electrical connectors, housings, and other parts.
  • Medical: Magnesium AZ92A-F is used in a variety of medical components, including implants, surgical instruments, and other parts.
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