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.


Aluminium Tooling Plate

KASTAL 300® Aluminium Tooling Plate

KASTAL 300® - a high precision cast aluminium speciality plate designed to meet stringent requirements for size and shape stability whilst significantly reducing through cost.


KASTAL 300® is a 5000 series cast aluminium plate with unusually high strength and pre-milled on both sides to very close thickness and flatness tolerances. The 5000 series composition allows superior product attributes compared with traditional 7000 series cast plates. We recommend ALPLAN or UNIDAL wrought speciality plates where the application is more demanding.


The unique qualities possessed by KASTAL 300® are gained from its advanced composition and enhanced casting process, both of which are not fully disclosed in detail for commercial reasons.

Typical Applications

Commercial applications for this engineering material include:

  • High precision components
  • Precision assembly equipment
  • Precision equipment baseplates and side plates
  • Reference plates
  • Computer components and baseplates
  • Electronics supports
  • Robotics
  • Printing equipment

We stock KASTAL 300® in 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 KASTAL 300® 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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