What is BS EN 755-8 - Porthole tubes about?
BS EN 755 is a series of European standards on aluminium and aluminium alloys that discusses the best procedures and specifications required for manufacturing high-quality extruded porthole tubes. BS EN 755-8 is the eight-part of series of documents on aluminium and aluminium alloys. BS EN 755-8 specifies the tolerances on dimensions and forms for aluminium and aluminium alloy extruded porthole tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube) or with a cross-section contained within a circumscribing circle (CD) from 10 mm to 350 mm (other than round tube), supplied in straight lengths.
BS EN 755-8 only applies to extruded porthole tubes 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.
BS EN 755-8 only applies to tubes produced by the tube porthole/bridge method.
BS EN 755-8 does not apply to:
- Extruded tubes produced by the seamless, die/mandrel method (EN 755-7)
- Tubes delivered in coils (EN 13957)
- Coiled tubes cut to length (EN 13957)
Who is BS EN 755-8 - Porthole tubes for?
BS EN 755-8 on aluminium and aluminium alloy is relevant to:
- Manufacturer of aluminium and aluminium alloys extruded porthole tubes
Why should you use BS EN 755-8- Porthole tubes?
Porthole tubes are commonly referred to as “structural” tubing. The Aluminum Association describes these tubes as: “a tube produced by extrusion of a solid billet through a porthole die.
BS EN 755-8 provide guidance on tolerances on dimensions, diameter - round tube, width, depth or width across flats - squares, rectangles, hexagons, octagons, the squareness of cut ends, tolerances on form, straightness, convexity–concavity, depth of dents for round tubes.
BS EN 755-8 exemplifies the required tolerances on dimensions that help you achieve precision in terms of product functionality and specification.
As a user of BS EN 755-8, you can be ensured of the dimensions of aluminium and aluminium alloys porthole tubes. With obedience and compliance to BS EN 755-8, you can efficiently manufacture high-quality precise aluminium and aluminium alloys extruded porthole tubes. BS EN 755-8 helps you to build consumer trust and confidence in the product. With BS EN 755-8 you can be ensured that the products consistently meet and exceed quality assurance targets. BS EN 755-8 provides you with comprehensive information useful throughout the process of production.
