Seamless Pipe

Seamless aluminium tubes can be ordered in all commercially available aluminium alloys in addition to high strength aluminium alloys which are required for more demanding applications. ALUnna has a number of extrusion presses equipped with mandrel piercing capability. This allows us to extrude a large range of extruded tubular dimensions from a number of different billet diameters. The size range for seamless extruded tubes ranges from 17 mm to 300 mm in diameter.

M.E.G.A. S.p.A. has always stood out for its multitechnological capabilities and highperformance manufacturing, efficiently and flexibly carrying out the entire production cycle of each pipe, starting from forging through to the final testing phase and any inherent certification. Thanks to continuous investments in new technologies, M.E.G.A. is able to obtain seamless pipes from a forged bar up to 11,000 mm in length and 1,400 mm in outside diameter. The special machining process enables M.E.G.A. to produce special seamless SMLS pipes as thin as 20mm (depending on the other dimensions) as well as large diameters. Pipes can be manufactured from carbon steel, stainless steel, duplex and superduplex stainless steel, and can be plated with CRA material (typically UNS N06625 or 316L) to ensure corrosion resistance. DSS and SDSS pipes can be produced to be Norsok M650 compliant.

The maximum temperature strength of standard type pre-insulated pipes is 140 °C. For this reason, rock wool reinforced (industrial type) pre-insulated seamless steel pipes must be used in lines that are required to operate at higher temperatures such as hot water, hot oil and steam lines.

Bending pipes, we usually use the cold bending method, but in the case of such a need and the possibilities of a given material, we also work at a specific temperature. For this type of order, we use a professional three-roller tube and profile bender. It provides a maximum bending angle of 180 degrees and a diameter of 54 x 3 mm. We also offer specialized, very precise CNC tube bending. We process pipes made of various materials, including aluminium, stainless steel, and copper. This process involves the plastic processing of materials in such a way as to change the curvature of the pipe to the desired shape. It is done by squeezing some fibres and stretching others. Importantly, it does not affect the appearance of the material and does not change its technical properties.