Magnesium AZ80A-T5 Alloy (UNS M11800)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Magnesium alloys have been developed primarily for use in the automobile and aerospace sectors due to their lightweight properties. Magnesium AZ80A-T5 alloy is similar to, but stronger than, magnesium grade AZ61A-F alloy.

The following sections will discuss in detail about magnesium AZ80A-T5 alloy.

Chemical Composition

The chemical composition of magnesium AZ80A-T5 alloy is outlined in the following table.

Element Content (%)
Aluminum, Al 8.50
Zinc, Zn 0.50
Magnesium, Mg Remainder

Physical Properties

The physical properties of magnesium AZ80A-T5 alloy are tabulated below.

Properties Metric Imperial
Density 1.80 g/cm3 0.0650 lb/in3

Mechanical Properties

The following table shows mechanical properties of magnesium AZ80A-T5 alloy.

Properties Metric Imperial
Tensile strength 345 MPa 50000 psi
Yield strength 250 MPa 36300 psi
Elastic modulus 45 GPa 6526 ksi
Elongation 11% 11%
Hardness, Brinell 72 72
Hardness, Knoop 95 95
Hardness, Vickers 82 82
Machinability 100 100

Thermal Properties

The thermal properties of magnesium AZ80A-T5 alloy are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient 26 µm/m°C 14.4 µin/in°F
Thermal conductivity 76 W/mK 527 BTU in/hr.ft².°F

Other Designations

Equivalent materials to magnesium AZ80A-T5 alloy are as follows:

  • ASTM A276
  • ASTM A580
  • ASTM A412

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