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About Us

Dymet Alloys

The Company

Established in 1952 Dymet Alloys are today a Division of Corewire Limited based in AshVale, Hampshire.

Together with CPV Limited the three main companies form the privately owned Blackwater Holding Group of Companies and include divisions manufacturing and supplying Tungsten Carbide and Tungsten Products, Cored Fluxed Hard Facing Wires, Welding Machines and Consumables, and Plastic Pipes and Fittings for applications across a wide range of industry sectors.

Our Product

Dymet Alloys produce a wide range of ISO standard and special Cobalt and Nickel binder tungsten carbide alloy grades including sub-micron grades in-house to meet individual customer specifications and requirements for both cylindrical and flat sintered and finished ground components.

The finished parts are typically used for wear resistant components and specialised tooling. Most of the products we supply are made to bespoke designs, to meet customer’s individual requirements, and start from a customer’s application, drawing or sample component.

Our laboratory is fully equipped for the design and testing of hard metals, which means we can help our customers to develop prototypes and produce tungsten carbide products for the toughest applications in industry.

We offer our customers:

  • Individual grade powders blended in house using quality materials
  • Cobalt and Nickel binder grades for a wide range of industrial applications
  • In excess of 20 standard grades available including sub-micron grades
  • Individual and volume batch components produced by either automatic pressing, isostatic pressing or customised shaping from pre-formed blocks and profiles.
  • Individual rectangular components up to 400mm in length, round components up to 225mm (9″ inches) in diameter and 50Kg in weight can be produced.
  • Vacuum sintering and sinter-HIP (Hot Isostatic Pressing).
  • Sintered and finished ground components
  • Ground components finished to the highest tolerances
  • Facilities include honing, internal & external cylindrical grinding including CNC, surface & ring grinding, EDM wire and spark erosion plus tool & cutter
  • Mechanical retention in to steel housings
  • Components retained to steel backings by means of induction oven or flame brazing and adhesive bonding
  • Finished components inspected in temperature controlled facilities
Pressed Part

Technical Support

Dymet Alloys offer advice and guidance with material grade selection, application and product design. Our laboratory is specially equipped to assist with prototype development and experimental research projects to optimise product life. Additionally a non-destructive evaluation of a customer sample can be undertaken to identify material grades where required.


Dymet Alloys follow strict quality procedures. We are BS ENISO 9001:2015 Accredited and our manufacturing processes comply with the relevant (British Standard Institute) standards for tungsten carbide hard metal production and allow for full traceability and certification. Our extensive laboratory ensures we are continuously improving our products to meet increasingly rigorous demands. Products and manufacturing processes are constantly under review to ensure the highest possible standards of performance.