Magnesium ZK31-T5 Alloy

Aug 13 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications

Introduction

Magnesium ZK31-T5 alloy is known to possess high strength and medium weldability.

The following datasheet gives an overview of magnesium ZK31-T5 alloy.

Chemical Composition

The following table shows the chemical composition of magnesium ZK31-T5 alloy.

Element Content (%)
Magnesium, Mg 96.4
Zinc, Zn 3
Zirconium, Zr 0.6

Physical Properties

The physical properties of magnesium ZK31-T5 alloy are given in the following table.

Properties Metric Imperial
Density 1.82 g/cm³ 0.0658 lb/in³

Mechanical Properties

The mechanical properties of magnesium ZK31-T5 forgings alloy are outlined in the following table.

Properties Metric Imperial
Tensile strength 290 MPa 42000 psi
Yield strength 207 MPa 30000 psi
Elastic modulus 45 GPa 6530 ksi
Shear modulus 17 GPa 2470 ksi
Poisson's ratio 0.35 0.35
Elongation at break 7% 7%

Thermal Properties

The thermal properties of magnesium ZK31-T5 alloy are highlighted in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@0.000-100°C/ 32-212°F) 26 µm/m°C 14.4 µin/in°F

Applications

Magnesium ZK31-T5 alloy is used in the following applications:

  • Highly stressed aerospace castings

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