scope:

This standard specifies the tolerances on dimensions and formfor aluminium and aluminium alloy extruded seamless tubes with anoutside diameter (OD) from 8 mm to 450 mm (round tube, see Figure1) or with a cross section contained within a circumscribing circle(CD) from 10 mm to 350 mm (other than round tube, see Figure 2),supplied in straight lengths. This standard only applies to tubeproduced by the seamless die/mandrel method of extrusion. Thisstandard applies to extruded seamless tube for general engineeringapplications only. The temper designations used in this part areaccording to EN 515. This standard does not apply to: ? extrudedtubes produced by porthole/bridge method (EN 755-8), ? tubesdelivered in coils (EN 13957), ? coiled tubes cut to length (EN13957).