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 AW-
6012, EN AW-6014, EN AW-6018, EN AW-6351, EN AW-6060, EN AW-6360, EN AW-6061, EN AW-
6261,
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 in this 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
BS EN 755-8:2008 history
2016BS EN 755-8:2016 Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Porthole tubes, tolerances on dimensions and form
2008BS EN 755-8:2008 Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 8: Porthole tubes, tolerances on dimensions and form
1998BS EN 755-8:1998 Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Porthole tubes, tolerances on dimensions and form