The production of mother shells for cold drawing is one of ATA’s basic activities. Arvedi Tubi Acciaio is Europe’s leading company and the only independent supplier of these products.
Depending on the customer’s requirements, Arvedi Tubi Acciaio can supply a wide and diversified range of mother shells for drawing that are produced on the stretch-reducing mill or welded and calibrated.
The tubes are made in compliance with international standards EN 10210, EN 10296, EN 10305-3 or according to customer specifications. The size range is the complete ATA range with diameters from 17 to 355,6 mm with wall thicknesses from 1.5 to 16 mm. The steel grades are both according to standards and also to customer specifications. The options are many and regard surfaces, which may be black or pickled, and state of supply (hot rolled, cold or hot finished).
Some characteristics, such as dimensional precision, the extreme ratio between wall thickness and external diameter, the excellent internal bead removal, the numerous special steel grades of constant and repetitive quality, the possibility offered by the hot rolled tube to be used directly without initial normalization, together make Arvedi “mother shells”, or hollows, highly competitive and meet the most demanding requirements of drawers to achieve precision details destined mainly for the automotive industry.
Arvedi Tubi Acciaio is also specialized in the production of mother shells for cold drawing for the production of hydraulic cylinders with minimum surface roughness values.