Editorial Feature

Magnesium Elektron WE43 Alloy (UNS M18430)

Jun 18 2013

Magnesium Elektron WE43 is a high strength casting alloy. It can be used in temperatures of up to 300°C (572°F). This alloy has good mechanical properties coupled with excellent corrosion resistance.

The following sections will discuss in detail about magnesium Elektron WE43 alloy.

Chemical Composition

The chemical composition of magnesium Elektron WE43 alloy is outlined in the following table.

Element Content (%)
Yttrium, Y 3.7-4.3
Rare Earths 2.4-4.4
Zirconium, Zr 0.4
Magnesium, Mg Remainder

Physical Properties

The physical properties of magnesium Elektron WE43 are tabulated below.

Properties Metric Imperial
Density 1.8 g/cm3 0.065 lb/in3
Melting point 540-640°C 1004-1184°F

Mechanical Properties

The following table shows mechanical properties of magnesium Elektron WE43 alloy.

Properties Metric Imperial
Tensile strength 250 MPa 36259 psi
Poisson’s ratio 0.27 0.27
Elongation 2% 2%
Hardness, Vickers 85-105 85-105

Thermal Properties

The thermal properties of magnesium Elektron WE43 alloy are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient 26.7 µm/m°C 14.8 µin/in°F
Thermal conductivity 51.3 W/mK 355 BTU in/hr.ft².°F

Other Designations

Related Stories

Equivalent materials to magnesium Elektron WE43 alloy are AMS 4427, ASTM B80, and MAM 4427.

Fabrication and Heat Treatment

Heat treatment

Heat treatment of magnesium Elektron WE43 castings requires the material to be solution treated for 8h at 525°C (977°F). Then air cooled. It can be hot water quenched as well. It can be aged for 16h at 250°C (482°F). After these processes, the material has to be air cooled.

Welding

Magnesium Elektron WE43 can be welded using tungsten arc inert gas process. A filler rod of similar composition should be used.

Machining

Magnesium Elektron WE43 can be easily machined using high powered tools and speed.

Applications

Magnesium Elektron WE43 alloy is used in the following:

  • Helicopter transmissions
  • Power systems
  • Aeroengines
  • Sports scars
  • Missiles

Comments

  1. pedram sotudeh pedram sotudeh United States says:
    April 14, 2022 at 11:05 AM

    Hi,

    Is there any vendors to provide WE43 in the North of America?

    Thank you

    Reply

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