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Precious metals

Multi-metal tubes and profiles

The cored tube offers an undeniably original solution. This product consists of a precious alloy tube filled with a steel, titanium or copper alloy core. The cross-section can be round or shaped, according to the customer’s requirements. Cold-drawing obtains a surface finish ready for final polishing.

In addition to the high-quality finish, the complex cored tube incorporates functional geometric requirements and reduces the weight of precious metals. Hence insert-based stainless steel tubes have become a must in bracelet link production.

Filled tubes with copper inserts are used for making precision components: after machining, the insert can be chemically removed by PX Précinox.

Multi-metal cored tubes and profiles


  • Watchmaking
  • Jewelry
  • High-tech industry
  • Medical


  • Gold and alloys
  • Silver and alloys
  • Platinum and alloys
  • Palladium and alloys

Our alloys are offered with various segregated and traceable gold labels.


Each tube and profile is unique. These products are custom-designed and manufactured according to the customer’s needs and preferences*.


Standard tolerances depending on the field of application.
Other tolerances on request.

Quality control

Each tube and profile is unique: these products are designed and manufactured to order, according to the customer’s needs and preferences*.


  • Straightened bar
  • Part

Further information

Precious-metal tubes and non precious-metal inserts are produced by PX Group.

All our shaping tools are designed and produced in-house. We develop our alloys and processes in close collaboration with our R&D laboratory.
(*) Precious metals control legislation recognizes a superior quality, i.e. top-grade, when the thickness reaches at least 200 µm, and authorizes an indication of the standard if the thickness reaches at least 500 µm.

For more information, please contact us

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