Arvedi Tubi Acciaio

SECTION SHAPE: zero eccentricity. For greater geometrical precision and closer tolerances. T H E A R V E D I H O T F I N I S H E D Safety and durability Leonardo’s static and dynamic behav- iour is excellent and, being hot finished, has a high plastic range. The structures made with Leonardo are fail-safe: able to sustain vibrations, unexpected loads and seismic events, absorbing energy and deforming without breaking. Durability can be guaranteed by the use of steel with improved characteristics against atmos- pheric corrosion (Corten) or by galvaniz- ing and painting. Sustainability and efficiency Leonardo is 100% recyclable. Leonardo, produced with steel from the Acciaieria Arvedi, a steelworks which produces steel from scrap using an innovative process, has a much smaller carbon foot print than Hot Formed Hollow Sections and/or Hot Finished Hollow Sections produced from integrated-cycle steel. Certified steel Leonardo Hot Finished Hollow Sections are made in accordance with standard EN10210 and are CE certified in com- pliance with the European Directive on Buildings 305/11. The perfection of cold formed with all the benefits of hot finished Arvedi hot-finished round, square and rectangular structural tubes are high-frequency induction-welded tubes made in accordance with standard EN10210-1/2. Arvedi hot finished structural tubes, as well as the special features of cold-formed welded tubes, such as: • precision, control and uniformity of geometry and dimensions • absence of eccentricity • close tolerances on wall thickness • precision of the corner radius • excellent surface finishing, both in terms of absolute roughness and surface scale • in line with the prescriptions of standard EN 10163-3 class D, subclass 3 have all the benefits of hot finished tubes, such as: • homogeneity of the technical characteristics: workability, weldability, ductility, plasticity and bendability • absence of tensions in the section edge areas and the tube welding area • suitability for welding on the edges of the whole Arvedi size range, overcoming the limits defined in Eurocode 3 (also for wall thicknesses >12.5 mm). Arvedi Hot Finished tubes, compared to those of some of our rivals, thanks to the type of heat treatment carried out – full body normalising (with temperature above the Ac3 austenitising temperature): • are optimal for use in building steel structures in seismic areas since they fully comply with the prescriptions of the Ministerial Decree relative to construction products (point 11.3.4.9); • thanks to there extensive plastic range they have a large capacity to absorb energy, a characteristic which makes them ideal for constructions, structures, plants and machinery subject to sudden loads, repeated loads, fatigue and vibrations; • are ideal for curving and bending and generally present a high level of workability. Moreover, Arvedi Hot Finished tubes, compared to our best rivals, also add: • control of the position of the internal welding bead, always at the centre of the larger side, (optionally) removal of the internal welding bead, the same thickness on the sides and edges of the section; • absence of eccentricity, both in the hollow section and along the tube • uniform wall thickness and weight along the whole length of the single tube or hollow section and no differences between one and another • customizable sizes and lengths the advantages of using LEONARDO Innovative design Leonardo is the height of innovative material and is successfully applied in modern buildings, major engineering works and daring architec- tural constructions. The hot finished tube gives a 360° freedom of interpretation of design al- lowing a high degree of workability, bendability and the possibility of all kinds of joints, without limitation or special prescriptions. Precisely because of the architectural aspects and the technical qualities indicated, Leonardo is also an advantage in reconstruction works, adaptations and building renovations. Competitiveness Leonardo allows prefabricated structures to be obtained and finished directly in the construction sites; the metal structures are easy to transport and simple to install and are also easy for constructing large civil, industrial and public structures in short times with low maintenance costs. WELDING ASPECT: welding and heat affected zone completely re-transformed; no residual stress, same structure, same hardness as the base material. Inner seam can be removed upon request. ARVEDI HOT FINISHED HOT FINISHED OF SOME COMPETITOR CORNER RADII: precise and tight corner profile; external radius < 2xT (stricter than the standard requirement: radius ≤ 3xT). No residual stress, same structure, same hardness as the base material. SURFACE: better surface aspect and finishing. Scale-free, low roughness.