Magnesium AZ80A Alloy (UNS M11800)

Topics Covered

Introduction
Chemical Composition
Mechanical Properties
Other Designations
Fabrication
     Machinability
     Workability
Applications

Introduction

Magnesium alloys are some of the easiest metals to machine with excellent strength-to-weight ratio. They have good corrosion resistance and ductility. There are several types of magnesium alloys in both cast and wrought formats.

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

Chemical Composition

Element Content (%)
Aluminum, Al 8.50
Zinc, Zn 0.50
Manganese, Mn 0.15
Magnesium, Mg Remainder

Mechanical Properties

The following table shows mechanical properties of magnesium AZ80A alloy.

Properties Metric Imperial
Tensile strength 290 MPa 42060 psi
Yield strength 200 MPa 29007 psi
Elongation 6% 6%

Other Designations

Equivalent materials to magnesium AZ80A alloy is

  • ASTM B107
  • ASTM B91
  • AIR/AFNOR G-A7Z1
  • QQ-M-40B
  • QQ-M-31B

Fabrication

Machinability

Machinability of magnesium AZ80A alloy is possible and requires moderate feed, high cutting speed, modest cut depth, and plenty of chip clearance.

Workability

Workability of magnesium AZ80A alloy requires hot working from 260°-288°C (500°-550°F). It is recommended that hammer forging be avoided.

The material has to be pressed to forge into shape. It can be readily extruded.

Applications

Magnesium AZ80A alloy is used in the following application areas:

  • Hydraulic cylinders
  • Aircraft engine parts
  • Supercharger components
  • Screw machine components

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