Magnesium AZ80A T4 (UNS M11800) Alloy

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Magnesium is a silvery white metal, abundantly available on earth’s crust. It is easily machinable and exhibits good ductility. It is commonly alloyed with non-ferrous metals like aluminum, copper, nickel, etc.

Magnesium AZ80A T4 is a wrought alloy, mainly composed of magnesium, aluminum and zinc. This datasheet will elaborate on the properties of this alloy.

Chemical Composition

The following table provides the chemical composition of magnesium AZ80A T4 alloy.

Element Content (%)
Magnesium, Mg 91.5
Aluminum, Al 8
Zinc, Zn 0.5

Physical Properties

The physical properties of magnesium AZ80A T4 alloy are given in the following table.

Properties Metric Imperial
Density 1.81 g/cc 0.0654 lb/in³
Melting Point 475-610°C 887-1130°F

Mechanical Properties

The mechanical properties of magnesium AZ80A T4 alloy are listed in the table below.

Properties Metric Imperial
Tensile Strength 330-380 MPa 47900-55100 psi
Yield strength (at strain 0.200%) 230-275 MPa 33400-39900 psi
Elongation at break (in 50 mm) 6-11 % 6-11 %
Hardness, Brinell (500 kg load, 10 mm ball) 67-80 67-80

Thermal Properties

The following table provides the thermal properties of magnesium AZ80A T4 alloy.

Properties Metric Imperial
Thermal expansion co-efficient 27.2 µm/m°C 15.1 µin/in°F
Thermal Conductivity 84 W/mK 583 BTU in/hr.ft².°F

Other Designations

Some of the other designations that are used to denote magnesium AZ80A T4 alloy are:

  • UNS M11800

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