Cold drawn tube - Import export

The different kinds of cold drawn tubes ready on stock cover a wide range of applications: COLD DRAWN SEAMLESS AND WELDED TUBES SUITABLE FOR HONING. COLD DRAWN SEAMLESS AND WELDED TUBES INSIDE H8. COLD DRAWN SEAMLESS TUBES FOR SHAFTS. WELDED SMOOTH BORE CYLINDER TUBES INSIDE H9 OR H10. COLD DRAWN SEAMLESS TUBES FOR HYDRAULIC AND PNEUMATIC POWER SYSTEMS. Seamless and Welded Cold Drawn pipes honed or ready for honing; H8, H9 or H10. STEELGRADES AND DELIVERY CONDITIONS COLD DRAWN / HARD (+C acc. EN 10305 / BK acc. DIN 2391) No heat treatment after final cold drawing. COLD DRAWN / SOFT (+LC acc. EN 10305 / BKW acc. DIN 2391) The final heat treatment is followed by a suitable drawing pass (limited reduction of area). STRESS RELIEVED (+SR acc. EN 10305 / BK+S acc. DIN 2391) After the final cold drawing process, tubes are stress relieved in controlled atmosphere in order to reduce work hardening due to the cold forming process. ANNEALED (+A acc. EN 10305 / GBK acc. DIN 2391) After...

Performance The patented STAUFF Form tube forming system is without doubt one of the most high-performing solutions currently available on the market for connecting metric sized tubes. Apart from its simplicity, it also provides a maximum level of safety, reliability and reproducibility. STAUFF Form has been designed as standard for seamless cold-drawn precision steel tubes as well as stainless steel tubes with dimensions between 6 x 1.5 mm and 42 x 4 mm in the Light Series and between 6 x 1.5 mm and 38 x 6 mm in the Heavy Series. Parameters for alternative materials (copper, brass, CuNiFe, Tungum etc.) can be added by the manufacturer, if required. System Design and Components The system is based on standard parts and consists of only four key components: The STAUFF Form Ring with an integrated and thus undetachable elastomeric sealing is slid onto the tube end, which has previously been mechanically contoured. This creates a positive-locking connection that provides a...

Depending on the application, tubes may require subsequent drawing following the extrusion process. Examples of this are: a requirement for a high degree of dimensional control and/or the need for tight tolerances, where the final outside diameter and/or wall thickness of the extruded tubes can only be achieved by subsequent cold drawing, where the final mechanical properties for non-heat treatable alloys are to be achieved by strain hardening (drawing) or where special requirements exist for the microstructure of the tubes.