Magnesium AZ80A-T6 (UNS M11800)

Image of Magnesium AZ80A-T6 bars
Credit: CSIRO, CC BY 3.0, via Wikimedia Commons

AZ80A-T6 is a magnesium alloy that is commonly used in the automotive, aerospace, and defense industries. It is a strong and lightweight alloy that is also corrosion-resistant.

Chemical Composition
ElementMinMax
MagnesiumRemainder
Aluminum7.8%9.2%
Copper0.05%
Iron0.005%
Manganese0.12%
Nickel0.005%
Silicon0.10%
Zinc0.20%0.80%

The following table provides a list of magnesium AZ80A-T6 properties in both SI and US customary/Imperial units.

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

Table of Magnesium AZ80A-T6 Properties
Physical Properties
Metric
Density1800 kg/m3
Mechanical PropertiesMetric
Tensile Strength (Ultimate)340 MPa
Tensile Strength (Yield)250 MPa
Compressive Strength (Yield)185 MPa
Fatigue Strength # of Cycles 1.0e+8100 MPa
Young’s Modulus (E)45 GPa
Shear Modulus (G)17 GPa
Elongation at Break in 50 mm5%
Poisson’s Ratio (ν)0.35
Brinell Hardness 500 kg load, 10 mm ball72
Knoop Hardness Converted from Brinell95
Vickers Hardness Converted from Brinell82
Machinability100%
Thermal PropertiesMetric
Melting Point Incipient Melting≥ 427 °C
Solidus490 °C
Liquidus610 °C
Thermal Conductivity76 W/m·K
Specific Heat Capacity (Cp)1050 J/kg·K
Coefficient of Thermal Expansion (αL)26.0 1/°C
Heat of Fusion370 J/g
Electrical PropertiesMetric
Electrical Resistivity1.45×10-5 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 AZ80A-T6

AdvantagesDisadvantages
LightweightCorrosion susceptibility
High strength-to-weight ratioLower modulus of elasticity
Good machinabilityLimited temperature resistance
Enhanced impact resistanceHigher cost
Good dimensional stabilityFlammability risk

Applications of Magnesium AZ80A-T6

Magnesium AZ80A-T6 alloy finds applications in various industries due to its unique properties. Here are some common applications:

  • Aerospace: AZ80A-T6 is used in aerospace applications such as aircraft components, including structural parts, brackets, and interior components.
  • Automotive: Magnesium AZ80A-T6 is employed in the automotive industry for lightweight structural components, such as engine blocks, transmission cases, suspension parts, and steering components.
  • Sporting Goods: The alloy is utilized in the manufacturing of sporting goods, including bicycles, golf clubs, tennis racquets, and other equipment.
  • Electronics: AZ80A-T6 is used in electronics applications, particularly for lightweight casings and housings of electronic devices.
  • Medical Devices: Magnesium AZ80A-T6 is employed in the medical field for the production of lightweight, biocompatible devices such as orthopedic implants and surgical instruments.
  • Consumer Goods: The alloy is used in the production of consumer goods such as hand tools, luggage frames, camera bodies, and various other lightweight products.
  • Defense and Military: AZ80A-T6 finds applications in defense and military equipment, including lightweight armor, weapon components, and vehicle parts.
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