TPi October 2008

High-precision tubes Smal l diameter

Internal diameters from 0.055"

form, using the TIG welding process. The company offers a modern, well- equipped department for tube cutting, and is able to produce cut pieces measuring just a few millimetres in length, completely burr-free. Tecnofar can adhere to a range of dimensional tolerances, with a stainless steel tubes range of 0.30 to 76mm and wall thickness from 0.1 to 3.5mm. These tubes are produced using stainless steels provided and guaranteed by leading steel mills. ISO 9001:2000 accredited (by Italcert), the company has been certified by RINA for its welding system and heat treatment for the production range of OD 6-19mm and wall thickness of 0.4 to 1.1mm. Tecnofar SpA – Italy info@tecnofar.it • www.tecnofar.it Thin wall tubes down to 0.1mm ID Russell Plastics manufactures tubes down to 0.1mm ID – a degree of thin wall that was extremely hard to initiate, but is now considered standard. Many other sizes are available, in a range of materials such as silicone, PVC, PE PP and flexible PVC. Special grades are also available. The tubes are used in a diverse range of applications, including sound attenuation in ear defenders, aerosol delivery tube, and in vitro fertilisation. Products include very specialised multi lumen tube for applications such as liquid calibration and the passage of micro data in real time; and tubing with x-ray opaque ‘stripes’. In a special development, the company is looking at tube with the ability of being seen by sound systems. UV light sensitive products are made to order. Non- invasive and general body tubes in the medical field are available, even in specialist grades of silicone polymer. The company has the ability to interpret designers’ ideas into practical solutions with its knowledge of materials and capabilities both for R&D and following through to production.

The company has a wealth of experience with titanium alloys, nickel base alloys and stainless steels. As the company works to custom specifications, a wide range of material types, tubing sizes, wall thicknesses and surface finishes are available.

Dearborn Precision has been an expert in precision seamless tubing and tube hollows for the last 60 years. Small diameters and extremely tight wall variation tolerances are the company’s speciality. The company states that due to its unique process and abilities, several major tubing manufacturers have chosen Dearborn Precision as their seamless tubing provider. The company claims to provide tubing with much tighter tolerances than commercially available products, and that this makes it the supplier of choice to many tube mills and redraw houses. Nominal wall thickness variation can rangebetween1%and10%overall,while lengths can range between 1 to 30 ft. Dearborn offers internal diameters of 0.055" to around 2", while wall thickness ranges from 0.045" upwards. Internal surface finish has become increasingly important in high end tube hollows and with several horizontal hones, Dearborn Precision is prepared to meet micro finish requirements of 8 to 32 Ra.

Dearborn Precision Tubular Products, Inc – USA info@dearbornprecision.com www.dearbornprecision.com

Stainless steel and nickel alloy tubes Founded in 1974, Italian company Tecnofar SpA is a specialist in the manufacture of stainless and nickel alloy tubes. With advanced technology, the company has two production units, located in Delebio and Gordona, covering a total surface area of 7,000m 2 . The company produces redrawn precision tubes, both in bar and coil

Precision steel tubes At its specialist tube plant in Longueville, France, Osborn Tubes manufactures precision steel tubes for a wide variety of industries. Amongst the products manufactured are a range of small tubes in round, square and other shapes.

The range of tubes is from 3mm diameter upwards, with wall thicknesses as low as 0.4mm, in a wide variety of materials but with a specialisation in 15CrMoV6, or 15CDV6 as it is often referred to. This material has its origins in the aerospace industry, where its properties offer high yield strength combined with excellent weldability. In many cases welding can be achieved without subsequent heat treatment and with negligible loss of properties. Osborn can offer long tubes or customer lengths and finishes to suit demand.

Osborn Tubes manufactures precision steel ▲ ▲ tubes for a wide variety of industries

Osborn Metals Limited – UK www.osbornmetals.com

Osborn Tubes – France tubes@osbornmetals.com • www.osbornmetals.com

Russell Plastics – UK www.russellplastics.co.uk

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Tube Products International October 2008

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