Seamless Steel Pipe and Tube | CDS Tubing

Seamless Steel Pipe and Tube | CDS Tubing

Technical Support contact:

T:+44 (0) 121 500 3043

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Our precision cold drawn CDS seamless tube and pipe is produced by piercing hot billets and subsequent rolling which reduces their diameter and elongates them. This material is then passed through a die and over a mandrel plug to produce an accurate size and gauge, this is the essence of the cold drawing process. 

Range and supply conditions

Liberty Drawn Tubes specialises in the manufacture of CDS tube ranging from 0.8mm to 8.5mm thickness and outside diameter from 6mm to 90mm, in random, fixed, semi-fixed or multiple lengths depending of customers' requirements. The pipe is also available in different supply conditions such as:

  • Soft or hard drawn
  • Heat treated
  • Normalised
  • Soft annealed
  • Stress relieved
  • Tempered 

Further details on our full range is available on our Cold Drawn Seamless Steel Pipe and Tube sizes page.

Typical applications & standard conformance

Cold drawn seamless pipe (also known as CDS tube) is usually required where the end product is either safety and/or quality critical. As seamless tubing has strength properties, superior to other types of steel tube, it is usually found in heat exchanger, boiler and pressure tube applications, various automotive components, stair lifts, roll cages, locomotive restorations, motorcycle uses, and many others.

Liberty Drawn Tubes manufactures precision cold drawn precision tube mainly for hydraulic, mechanical and general engineering uses. All products are produced under a quality management system and are fully compliant to ISO 9001, TUV, Lloyds UK and MoD.
 

Advantages

Cold drawn tube has a number of advantages compared to Electric Resistance Welded (ERW) tube and Hot Finished Seamless Tube (HFS) such as:

  • Higher strength & hardness properties - cold drawing increases the strength of the tube therefore making it very suitable for safety and performance critical applications.
  • Size accuracy - due to the nature of the manufacturing process drawn tubes can be manufactured to close dimensional tolerances, achieving consistent diameter and thicknesses throughout.
  • Enhanced appearance - cold drawn seamless tube usually has a shinier look with no weld lines increasing the aesthetics of the products in which it is incorporated.
  • Easier to machine - due to the superior strength and hardness of our tube, it produces a better machined surface and therefore a better looking component for our customers.
  • More precise and cost effective bending - cold drawn tube allows for more precise bends which can also be achieved with less set up time and consequent adjustments.
  • Superior finish in subsequent manipulations - as cold drawn tubes have a glossier, no-seam finish they also produce end better end products from processes such as dipping, etching and anodizing.

Steel grades

Our steel tube is manufactured in the United Kingdom from raw materials of proven quality, guaranteering optimum performance. We use a number of different steel grades - from mild to low alloy steel. For further information see our Cold Drawn Tubes Steel Grades page.
 

Tube Finishing Options

Subject to customer requirements our CDS tubes can be additionally treated to achieve a number of ends and finishes, including:

  • Drawing
  • Heat treatment
  • Bulging
  • Swaging
  • Cutting
  • Deburring
  • Vibro cleaning
  • Threading
  • De-rusting
  • Chamfering
  • Washing.

For further details on our tube services please visit our Sub-contract services pages or call us on +44 (0) 121 500 3043.