About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

WE43 Magnesium

Magnesium Alloy

WE43 Magnesium Alloy

WE43 is a high strength magnesium alloy which offers good mechanical properties both at ambient and elevated temperatures.


The alloy mainly contains yttrium and neodymium. WE43 finds use in temperatures up to 300°C and benefits from good corrosion resistance. The alloy is an excellent engineering solution in applications where weight reduction without compromising performance is required - motorsport, therefore, is an obvious beneficiary as is the aerospace sector.


WE43 Magnesium Alloy is a high strength material with good overall mechanical properties. The alloy offers an excellent engineering solution when weight reduction is required. WE43 is suitable for use on ambient and elevated temperatures up to 300°C.

Typical Applications

Commercial applications for this engineering material include:

  • Missiles
  • Power transmissions
  • Aircraft engines
  • Motorsport
  • Helicopter rotor heads
  • Engine casings
  • Racing wheels
  • Gearbox casings

We stock WE43 in flats, round bar and plate.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for WE43 is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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