Grade ZE41 Magnesium Alloy

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Manufacturing Process
Applications

Introduction

ZE41 is a magnesium casting alloy containing zirconium, rare earths and zinc. This alloy is well-suited for high integrity castings that are operated at ambient temperatures or up to 149°C (300°F). It is easily weldable and pressure-tight.

The following datasheet will provide more details about ZE41 alloy.

Chemical Composition

The following table shows the chemical composition of ZE41 alloy.

Element Content (%)
Zinc, Zn 3.5-5
Rare earths 0.8-1.7
Zirconium, Zr 0.4-1
Magnesium, Mg Balance

Physical Properties

The physical properties of ZE41 alloy are outlined in the following table.

Properties Metric Imperial
Melting point 532-638°C 990-1180°F

Mechanical Properties

The mechanical properties of ZE41 alloy are outlined in the following table.

Properties Metric Imperial
Tensile strength 218 MPa 31600 ksi
Modulus of elasticity 44.12 GPa 6400 ksi
Poisson’s ratio 0.35 0.35
Elongation 4.50% 4.50%
Brinell hardness 55-70 55-70

Thermal Properties

The thermal properties of ZE41 alloy are given in the following table.

Properties Metric Imperial
Thermal expansion coefficient 15.1 µm/m°C 15.1 µin/in°F
Thermal conductivity 24 W/mK 63 BTU in/hr.ft².°F

Manufacturing Process

ZE41 alloy is machined like any other magnesium casting alloys, using conventional techniques. It is heat-treated at optimum temperatures ranging from 177-343°C (350-650°F) for 10 to 16 hours. This process is followed by water quenching. The alloy is welded by TIG process using filler rod of a similar composition.

Applications

The following are some of the major applications of ZE41 alloy:

  • Aircraft components
  • Military equipment
  • Video cameras
  • Vibration testing equipment
  • Motorcycle wheels
  • Power tools
  • Helicopter gearboxes

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