This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded porthole tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube; see Figure 1) 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 extruded porthole tube for general engineering applications made in the following alloys: EN AW-1050A; EN AW-1200; EN AW-1350; EN AW-3003; EN AW-3103; EN AW-5005; EN AW-5005A; EN AW-5049; EN AW-5051A; EN AW-5251; EN AW-5052; EN AW-6101A; EN AW-6101B; EN AW-6005; EN AW-6005A; EN AW-6008; EN AW-6110A; EN AW6012; EN AW-6014; EN AW-6018; EN AW-6351; EN AW-6060; EN AW-6360; EN AW-6061; EN AW6261; EN AW-6262; EN AW-6262A; EN AW-6063; EN AW-6063A; EN AW-6463; EN AW-6065; EN AW-6081; EN AW-6082; EN AW-6182; EN AW-7003; EN AW-7005; EN AW-7108; EN AW-7108A; EN AW-7020. The temper designations used inThis part are according to EN 515.This standard only applies to tube produced by the tube porthole/bridge method.This standard does not apply to: extruded tubes produced by the seamless; die/mandrel method (EN 755-7); tubes delivered in coils (prEN 13957); coiled tubes cut to length (prEN 13957). Figure 1-Round tube Figure 2-Circumscribing circle for other than round tube
EN 755-8:1998 history
2016EN 755-8:2016 Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8: Porthole tubes, tolerances on dimensions and form
2008EN 755-8:2008 Aluminium and aluminium alloys - Extruded rod/bar@ tube and profiles - Part 8: Porthole tubes@ tolerances on dimensions and form
1998EN 755-8:1998 Aluminium and Aluminium Alloys - Extruded Rod/Bar, Tube and Profiles - Part 8: Porthole Tubes, Tolerances on Dimensions and Form