TPT November 2007

P roduction of H eat T ransfer T ubing

Tube and pipe with stress corrosion cracking resistance

air-conditioners. In addition to Splitcon ® flexible hoses, Tubiflex supplies a substantial range of products. This range includes a wide choice of assemblies for hydro-thermo-sanitary appliances (Sereingaz, Minigas, Caterflex ® and Boilerflex). These products have been developed to satisfy the varying international standards, norms and requirements relating to gas, water and air conveyance, both for domestic and industrial applications. In operation since 1951, the company has an advanced service standard with distribution to 40 countries. The company serves a very wide range of industrial sectors including automotive, naval, petrochemical and aerospace. Products are manufactured according to certified processes conforming to several different standards.

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RathGibson, USA, manufactures stainless steel, nickel, and titanium welded, welded and drawn, and seamless tube and pipe. The company’s Super Duplex 2507 tubing and pipe, named for its nominal composition of 25 per cent chromium and 7 per cent nickel, is used in general commercial industries where pressure and corrosion resistance is required. “ Super Duplex 2507 is the most common super duplex alloy ,” said Dave O’Donnell, director of product and process development for RathGibson. “ The duplex austenite-ferrite structure increases its SCC (stress corrosion cracking) resistance and doubles its room temperature yield strength over conventional austenitic alloys. Super Duplex 2507 can be designed with reductions in section thickness and weight to offset the alloy cost. When considering the alloy’s unique characteristics, utilising Super Duplex 2507 tubing and pipe will result in a significant savings over high nickel alloys. ” The ferrite phase of Super Duplex 2507 provides the alloy’s SCC resistance. With its composition normally maintained within a

‹ RathGibson’s Super

Duplex 2507 tubing and pipe offers a combination of stress corrosion cracking resistance and formability

30-50 per cent ferrite range, Super Duplex 2507 also benefits from its high chromium content that is resistant to oxidising acid concentrations. The austenite phase of the Super Duplex 2507 is responsible for the alloy’s ductility and formability. Super Duplex 2507 tubing and pipe is formed from an autogenous fusion welding of a continuous strip. Bright solution annealing restores the weld’s phase balance after cold finishing or cold- forming of the weld flush with the strip. The result is a full finished welded product, which competes favourably with seamless.

Tubiflex SpA – Italy Fax : +39 011 9033210 Email : commerciale@tubiflex.com Website : www.tubiflex.com

RathGibson – USA Fax : +1 608 754 0889 Website : www.rathgibson.com

- Complete range of cutting lines - Deburring machines - High productivity cutting lines

- Multiheads - Bundling lines

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1977- 2007

EUROMATIC 370 CM CNB Fully automatic sawing machine, hydropneumatic working. Servo-assisted positioning feeding for cutting length setting, high productivity. Easy programming using the built-in touch screen panel. Programmable direction of unloading (front or rear).

EUROMATIC 370 CNC Fully automatic cutting line, 4 Servo-assisted axis. Easy to program. Selectable cutting programs from existing templates.

MATIC 315 CM 2B Fully automatic sawing machine, hydropneumatic working. Easy programming using the built-in touch screen. Feeding system using pressing rollers including a measuring roller with encoder for trim cut operations.

BUNDLING LINE Fully automatic bundling line, creation of square or exagonal bundle. High velocity.

More info on: www.omp-group.it

O.M.P. s r l via Delle Prese 42-44 Z.I. 36014 Santorso (VI) ITALIA Tel.: (+39) 0445 640822 Fax: (+39) 0445 640225 - info@omp-group.it

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N ovember /D ecember 2007