TPI January 2009

developments products &

Stainless steel coils, sheets and plates

Longitudinally welded steel pipes, coatings and linings Riveco Generalsider SpA, Italy, is an industrial group focused on supplying products and services to companies involved in the business of conveying fluids, of transporting energy fuels (oil and gas) and to infrastructure industries. The company’s production is carried out on two different industrial sites with a combined extension of 96,000m 2 . The first production unit manufactures longitudinally welded steel pipes from 3" to 16" in compliance with most relevant international standards (including EN, API, DIN and ASTM), and pre-insulated pipes for district heating and HDPE pipes. In the second production unit, anticorrosion coatings and linings for pipes up to 64" are applied, including PE, PP, concrete overweighting and sacrificial anodes application for off- shore pipelines, rock-shield mechanical protections, polyurethane foam insulation for district heating projects and related services.

Duplex UNS, S31803, S32760 and S31500 grades, with test certificates. The company maintains its own stock, in order to provide prompt delivery.

Suraj Metasteel is a stockist and importer from well-known mills such as Outokumpu, Columbus, Accerinox, Bao Steel Mill and Tisco Mill. The company offers stainless steel plate, sheets and coils of 304, 304L, 310, 316, 316L, 316Ti, 321, 409, 430,

Suraj Metasteel Ltd – India import@surajmetasteel.com www.surajmetasteel.com

Custom tubular supports Diversico Industries, USA, established in 1960, is a tube forming and speciality swaging manufacturer. The ISO 900:2000 certified company has complete in-house proprietary custom forming, rotary swaging, and end-forming, plus

secondary operations such as drilling, punching, machining and finishing. Customtubularsupports,poles and leg components swaged and formed by Diversico can provide design benefits over other fabricating processes. Available in lengths from 1" to 15 ft, and diameters from 1 / 8 " to 16", the custom tubular components add strength, resist bending, simplify design and add visual product appeal.

Applications for Diversico’s custom tubular poles, S S supports and legs include furniture, recreational, industrial, agricultural and marine products

Part characteristics available include transitions from round to square, tapers, expansions, reductions, reshaping, flaring, beading, weldless assemblies, heavy and thin wall, mating components, slip fits and reinforced tubes inside tubes. Diversico fabricates many combinations of these part features, such as round to odd shapes with extreme wall thickness. Components can be end-formed with multiple secondary operations such as threading and beading. Materials formed range from aluminium to zirconium and almost everything in between.

Riveco Generalsider operates two S S industrial sites

The key benefit of the designs is to provide an array of new options. For example, Diversico’s swaged tapers are strong and resist bending.

The company’s quality assurance system is certified according to international standards UNI EN ISO 9001:2000 and API 5L Spec Q1. In addition, the company has acquired certifications API Spec 5L, TÜV AD 2000-HP 0 and TÜV AD 2000-W0/TRD100. The company is also a registered and qualified supplier, and has obtained a number of qualifications from major companies in the oil and gas transmission field.

The chipless forming process Diversico uses causes the grain in metal to flow with the configuration of the part, maintaining or increasing the part’s strength. Also, tubular assemblies can be eliminated by combining several formed tubular parts into a single-piece formed tube. This removes the need for welding or adhesives that can cause heat distortion and finishing problems. Another option is weldless tubular assemblies, where one tubular part is inserted into another and locked into place.

Weld-free assemblies mean heat sensitive parts can be joined without expansion-coefficient problems.

Diversico Industries, Inc – USA sales@diversico.com • www.diversico.com

Riveco Generalsider SpA – Italy leonzio@rivecogeneralsider.it www.rivecogeneralsider.it

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January 2009 Tube Products International