TPi May 2016

products & developments

Stainless steel press fitting pipe: raw or annealed?

need to perform curving operations on the pipes. Excess deformation may even cause leaks. The annealed pipe for press-fittings is subjected to an annealing heat treatment. This process mainly acts on the welded areas of the pipe, creating a precipitation of elements that tend to normalise the material in that area. In the current market, Eurotubi states that more than 80 per cent of stainless steel press-fitting pipe sales are in the raw state.

and Australia. However, even in these regions the demand for annealed pipes is decreasing. An increasing number of users are realising that the possible technical and qualitative differences that may make the annealed pipe seem better are actually very marginal. There are a few situations in which an annealed press-fitting pipe is more suitable than a raw one. An example is the possibility that annealed pipes have of being curved better. Eurotubi recommends creating curves for plumbing systems using the various figures available in its catalogue, avoiding as much as possible the

For stainless steel press-fitting systems, the choice is between raw or annealed pipes. Are there applications where spending more for annealed pipes is advised? According to Eurotubi, for most approvals there is no difference. In most plumbing systems where AISI 316L stainless steel press-fittings can be applied, raw pipes can be selected. DVGW certification is valid for both types of pipe. The choice of one type over another mainly applies to the customs in the reference markets. Generally, annealed pipes are required more in regions with stricter standards, such as Scandinavia

Eurotubi Europa Srl – Italy info@eurotubieuropa.it www.eurotubieuropa.it

New stockholding catalogue Eltherington, UK, has issued a newly updated aluminium stockholding catalogue. With 28 fully illustrated pages, the catalogue contains essential sheet, profile and plate products. Along with an improved layout, the brochure features a number of new products, which build on the company’s commitment to be a one-stop-shop for stockholding items. aluminium cladding. The in-house design assistance and development team provides products, service and support to the architectural, modular building, leisure home, stockholding and other specialist sectors. Leading the new product entries are two full pages devoted to 1 / 2 , 1 / 4 and 1 / 8 wallboard sections, including

updated stockholding brochure also showcases a dedicated section on Eltherington’s bespoke cutting and fabrication services. An increasing number of customers are choosing this service, for improved efficiency in manufacturing operations. The updated aluminium stockholding brochure can be viewed online, at www.eltherington.co.uk/stockholding/ index.html

assembly instructions. These extruded sections can be used in conjunction with laminate faced panels for internal wall applications. The range includes internal and external corners, H joint, end cap and quad end. The

Eltherington has more than 50 years’ experience in stockholding and fabrication of architectural aluminium, stainless steel and other metals. It is also a major producer of coated

Eltherington Group Ltd – UK info@eltherington.co.uk www.eltherington.co.uk

Stainless steel export specialist

The company has 20,000m of covered warehouse area, and a permanent availability of 5,000 tons of stainless steel products. Welded pipes are available from ¼" to 24", in grades 1.4307 and 1.4404 / 304L and 316L. Seamless pipes range from 3 / 8 " to 8", in the same grades. Fittings in grades 304L and 316L range from ¼"

Sadinox is a new export business from Sadel Stainless Steel NV, an independent stainless steel stockist based in Belgium. Sadinox has been established to provide a reliable partner for stainless steel needs, as a supplier to fill stock gaps or to support in finding missing pieces for customers’ projects.

to 24" (welded) or 3 / 8

" to 8" (seamless).

Flanges from 3 / 8 " to 16" are available in grades 1.4307 and 1.4404 / 304L and 316L.

Sadinox – Belgium info@sadinox.be www.sadinox.be

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Tube Products International May 2016

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