EN Standards for Extruded Aluminium
What is a standard ?
A standard is a technical document designed to be used as
- a rule
- a guideline or
- a definition.
It is a consensus-built, repeatable way of doing something. Standards are created by bringing together all interested parties such as manufacturers, consumers and regulators of a particular material, product, process or service.
All parties benefit from standardization through increased product safety and quality as well as lower transaction costs and prices [1].
terms
Technical terms in the extruded aluminum products, which are used in European Standards, established in a special international document [2].
Rod
Solid wood moldings with a circular cross-section. Usually it delivered in straight lengths. Often, instead of the term «rod» uses the term «round bar». When delivered in coils it is called the «wire».
Bar
Solid wood moldings with a cross section in the form of a square, rectangle, regular hexagon or a regular octagon. Usually it delivered in straight lengths. When delivered in coils it is called the «wire», ie, "wire".
Tube
The hollow molded products, which has a cross section in the form of a cavity with a constant wall thickness, supplied in straight lengths or coils. The cross section may have a circular shape, oval, square, rectangle, equilateral triangle or a regular polygon. The inner and outer cross-sections should be concentric and have the same shape and orientation. The inner and outer corners can be rounded.
Profile
molded products, whose cross section has a shape different from that of the sheet, plate, tight, stripes, tape, wire or foil.
Condition of the material
The state of the material (temper) is the state of the metal (grade of aluminum or aluminum alloy), he received as a result of mechanical and / or thermal treatment during the manufacturing aluminum product. Usually it characterized metallurgical structure of the metal and its mechanical, as well as other properties.
Symbol states material aluminum brands and aluminum alloys in all standards, which are represented below, made according to EN 515.
EN Standards for Extruded Aluminium [3]
EN 755-1:2016
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 1: Technical conditions for inspection and delivery
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 1: Technical conditions for acceptance and delivery
This part of EN 755 sets the technical conditions for the acceptance and supply of extruded rods, bands, pipes, profiles of a deformable aluminum and wrought aluminum alloys for general technical applications. This document does not address the following types of similar products, for which separate standards have been developed:
- pressed billet for forging (EN 603)
- extruded sections of alloys of high accuracy 6060 и 6063 (EN 12020)
- presswork, supplied in coils (EN 13957)
- coiled tubing, cut to length (EN 13957)
EN 755-2:2016
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 2: Mechanical properties
Aluminum and aluminum alloys – pressed rods, stripes, and pipe profiles – Part 2: Mechanical properties
This part of the standard sets limits on the mechanical properties of extruded bars, bands, pipes and profiles according to the results of the tensile tests. Technical conditions for reception and delivery as specified in EN 755-1. The limits of chemical composition of the aluminum alloys for aluminum installed in EN 573-3.
EN 755-3:2008
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 3: Round bars, tolerances on dimensions and form
Aluminum and aluminum alloys – pressed rods, stripes, and pipe profiles – Part 3: Round rods, tolerances on dimensions and form
This document specifies the tolerances on the dimensions and shape to round bars of aluminum and aluminum alloy, which have a diameter of 8 mm 320 mm.
EN 755-4:2008
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 4: Square bars, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 4: Square rods, tolerances on dimensions and form
This part of EN 755 sets the tolerances for the dimensions and shape of square bars made of aluminum and aluminum alloys with the size of 10 mm 220 mm.
EN 755-5:2008
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 5: Rectangular bars, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 5: Stripes, tolerances on dimensions and form
This document establishes tolerances for the dimensions and shape of strips (rectangular rods) of aluminum and aluminum alloys with a thickness of 2 mm 240 mm and a width of 10 mm 600 mm.
EN 755-6:2008
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 6: Hexagonal bars, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 6: Hexagonal rods, tolerances on dimensions and form
This document specifies the tolerances on the dimensions and shape of hexagonal rods of aluminum and aluminum alloys of a thickness 10 mm 220 mm.
EN 755-7:2016
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 7: Seamless tubes, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 7: Seamless pipes, tolerances on dimensions and form
This part of the standard 755 sets the tolerances for the dimensions and shape of seamless tubes of aluminum and aluminum alloy, supplied in straight sections:
- round tubes with an external diameter of 8 mm 450 mm or
- pipe, with a diameter of the circumscribed circle of 10 mm 350 mm (except for round pipes).
This standard only applies to pipes, which are manufactured by pressing seamless using special dies and the inner mandrel.
The standard applies only to seamless pipes General purpose.
The standard does not address:
- extruded tubes, which are made using matrices "porthole" and bridge matrices;
- tubes, supplied in coils (EN 13957);
- coiled tubing, supplied in straight measured lengths (EN 13957).
EN 755-8:2016
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 8: Porthole tubes, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 8: Pipes, which are made using combined and bridge matrices; dimensional and shape tolerances
This document sets the tolerances on dimensions and shape of the pipe, manufactured using matrices "porthole" and bridge matrices (hereinafter – tubes “dies”), which are supplied in straight measured lengths:
- round tubes with an external diameter of 8 mm 450 mm or
- tubes, other than round, with a diameter of the circumscribed circle of 10 to 220 mm.
tubes “dies” in contrast to the seamless pipes have technological joints, which are formed by welding the individual metal flows when passing it through the matrix. Sometimes, these pipes are called structural unlike seamless pipe, which are designed for transmission of liquids and gases.
This standard applies only to pipes "porthole" for general technical purposes from the following aluminum alloys (in the designations of aluminum alloys, the prefix EN AW- is omitted):
- 1050A, 1200, 1350;
- 3003, 3103;
- 5005, 5005A, 5049, 5051A, 5251, 5052;
- 6101A, 6101B, 6005, 6005A, 6008, 6110A, 6012, 6014, 6018, 6351, 6060, 6360, 6061, 6261; 6262, 6262A, 6063, 6063A, 6463, 6065, 6081, 6082; 6182;
- 7003, 7005, 7108, 7108A, 7020.
This standard applies only to the pipes' porthol ". The standard does not address:
- seamless extruded pipes (EN 755-7);
- tubes, supplied in coils (EN 13957);
- coiled tubing, supplied in straight measured lengths (EN 13957)
EN 755-9:2016
Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 9: Profiles, tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded rods, stripes, tubes and profiles - Part 9: Profiles; dimensional and shape tolerances
This document specifies the tolerances on the dimensions and shape of the extruded profiles of aluminum and aluminum alloys with a cross section, that is within the circumscribed circle diameter of not more 800 mm. This standard applies only to extruded profiles for general technical purposes.
EN 12020-1:2008
Aluminium and aluminium alloys – Extruded precision profiles in alloys EN AW 6060 and EN AW 6063 – Part 1: Technical conditions for inspection and delivery
Aluminum and aluminum alloys - Extruded profiles increased accuracy of alloys EN AW-6060 и EN AW-6063 - Part 1: Technical conditions for acceptance and delivery
This document sets specifications for the acceptance and delivery of high accuracy extruded of aluminum alloy EN AW-6060 and EN AW-6063, including, with heat-insulating inserts (thermal inserts).
Profiles of high accuracy, which refer to this standard, different from the general purpose extruded profiles according to EN 755-9 on the following grounds:
- designed primarily for protecting building designs, for example, windows and doors;
- more stringent requirements for the quality of visible surfaces;
- maximum diameter of the circumscribed circle is 350 mm;
- manufactured with tighter dimensional and shape tolerances; for complex profiles, manufacturing with tolerances is allowed by agreement between the manufacturer and the customer.
The influence of the material of the thermal insulating insert (thermal insert) on dimensional tolerances is considered in EN 12020-2; material tolerances for thermal inserts are subject to EN 14024.
EN 12020-2:2008
Aluminium and aluminium alloys – Extruded precision profiles in alloys EN AW–6060 and EN AW–6063 – Part 2: Tolerances on dimensions and form
Aluminum and aluminum alloys - Extruded profiles increased accuracy of alloys EN AW-6060 и EN AW-6063 - Part 2: Dimensional and shape tolerances
This standard specifies the tolerances on the dimensions and shape of extrusions of high accuracy aluminum alloy EN AW-6060 and EN AW-6063, including with heat-insulating inserts (thermal inserts).
Differences requirements for these extrusions increased accuracy compared to extruded profiles for general use EN 755-9 look. above in the description of the standard EN 12020-1.
EN 13957:2008
Aluminium and aluminium alloys – Extruded round, coiled tube for general applications – Specification
Aluminum and aluminum alloys – Compressed round pipes, general purpose coils – specifications
This European Standard specifies the tolerances on the dimensions and shape of the extruded round tubes of aluminum and aluminum alloy, manufactured with the use of matrices "porthol", with an outer diameter of 2 mm 50 mm inclusive, supplied in coils or in straight lengths, cut from the coiled tubing.
This European standard applies mainly to round pipes General purpose, Aluminum is made of some stamps series 1xxx and 3xxx series aluminum alloys. The use of this standard for other grades of aluminum series 1xxx and 3xxx series aluminum alloys, as well as other series aluminum alloys, for example, 5xxx and 6xxx, It can be made by agreement between the manufacturer and the customer.
This European standard only applies to the following types of pipes:
- round tubes, manufactured with the use of porthole matrices or bridge matrices and supplied in coils;
- the same pipe, but delivered in straight lengths, are cut from the coiled tubing.
This European standard does not apply to:
- seamless precision tubes, which are made using dies and internal mandrels (EN 755-7);
- pipes, which are pressed in straight sections (i.e. not in coils) (EN 755-8).
Sources:
