EN 755-4:2008
(Main)Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and form
Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and form
This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded square bars having widths across flats from 10 mm up to 220 mm.
The temper designations used in this part are according to EN 515.
Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 4: Vierkantstangen, Grenzabmaße und Formtoleranzen
Dieses Dokument legt die Grenzabmaße und Formtoleranzen für stranggepresste Vierkantstangen aus Alu¬minium und Aluminiumlegierungen mit einer Seitenlänge von 10 mm bis 220 mm fest.
Die in diesem Dokument verwendeten Bezeichnungen der Werkstoffzustände entsprechen EN 515.
Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 4: Barres carrées, tolérances sur dimensions et forme
Le présent document spécifie les tolérances sur dimensions et forme des barres carrées filées en aluminium et alliages d’aluminium de largeur sur plats comprise entre 10 mm et 220 mm inclus.
La désignation des états métallurgiques utilisés dans cette partie est conforme à l’EN 515.
Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 4. del: Palice s kvadratnim prerezom, tolerance mer in oblike
General Information
- Status
- Published
- Publication Date
- 18-Mar-2008
- Technical Committee
- CEN/TC 132 - Aluminium and aluminium alloys
- Drafting Committee
- WG 35 - Extruded products
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 02-Dec-2024
- Completion Date
- 02-Dec-2024
Relations
- Effective Date
- 22-Dec-2008
Overview
EN 755-4:2008 (CEN) defines the tolerances on dimensions and form for extruded aluminium square bars. It applies to aluminium and aluminium-alloy extrusions with widths across flats from 10 mm to 220 mm. Temper designations referenced in this part follow EN 515. The standard is intended to harmonize manufacturing and inspection criteria for extruded square bars across the EU.
Key topics and technical requirements
- Scope and alloy grouping
- Covers extruded square bars S = 10–220 mm.
- Alloys are split into Group I and Group II according to manufacturing behaviour; the standard lists common alloy designations (e.g., EN AW-1050A, EN AW-6060 in Group I; EN AW-2024, EN AW-7075 in Group II) and allows other groupings by agreement.
- Tolerances on width across flats
- Dimension tolerances are specified by width and alloy group (examples from the standard: ±0.22 mm for Group I, 10–18 mm; ±0.30 mm for Group II, 10–18 mm; tolerances increase with size).
- Corner radii
- Maximum corner radii are specified by width and alloy group (e.g., 1.0–5.0 mm depending on size and group).
- Length and cut-end squareness
- Fixed length tolerances are defined; if no fixed length is ordered, random lengths are permitted by agreement.
- Squareness of cut ends must be within half the fixed-length tolerance range.
- Form tolerances
- Straightness: deviation per metre (ht/length) and localised kinks (hs) are defined; applies to most tempers except O and Tx510 unless agreed otherwise.
- Twist: permitted twist per 1 000 mm and over total length are specified; also exempted for tempers O and Tx510 unless agreed.
- Convexity/concavity: addressed within width-across-flats tolerances.
- Deviation from square: measured and limited according to bar size.
Applications and users
- Primary users:
- Extrusion mills and manufacturers - to set production tolerances and acceptance criteria.
- Quality inspectors and test laboratories - for dimensional and form verification.
- Design and manufacturing engineers, fabricators, and procurement teams - to specify acceptable tolerances in purchase orders and drawings.
- Typical applications:
- Structural and architectural components, machine parts, framework, and any application where consistent square-bar geometry is required.
Related standards
- EN 515 - temper designations for wrought aluminium.
- Other parts of EN 755 series (inspection/delivery, round bars, rectangular bars, tubes, profiles) - useful when specifying related extruded products.
Keywords: EN 755-4:2008, aluminium square bars tolerances, extruded aluminium square bars, tolerances on dimensions and form, CEN aluminium standards, EN 515.
Frequently Asked Questions
EN 755-4:2008 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and form". This standard covers: This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded square bars having widths across flats from 10 mm up to 220 mm. The temper designations used in this part are according to EN 515.
This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded square bars having widths across flats from 10 mm up to 220 mm. The temper designations used in this part are according to EN 515.
EN 755-4:2008 is classified under the following ICS (International Classification for Standards) categories: 77.150.10 - Aluminium products. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 755-4:2008 has the following relationships with other standards: It is inter standard links to EN 755-4:1995. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 755-4:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and formAluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 4. del: Palice s kvadratnim prerezom, tolerance mer in oblikeAluminium et alliages d'aluminium - Barre, tubes et profilés filés - Partie 4 : Barres carrées, tolérances sur dimensions et formeAluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 4: Vierkantstangen, Grenzabmaße und FormtoleranzenTa slovenski standard je istoveten z:EN 755-4:2008SIST EN 755-4:2008en77.150.10ICS:SIST EN 755-4:19981DGRPHãþDSLOVENSKI
STANDARDSIST EN 755-4:200801-maj-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 755-4March 2008ICS 77.150.10Supersedes EN 755-4:1995
English VersionAluminium and aluminium alloys - Extruded rod/bar, tube andprofiles - Part 4: Square bars, tolerances on dimensions andformAluminium et alliages d'aluminium - Barres, tubes etprofilés filés - Partie 4: Barres carrées, tolérances surdimensions et formeAluminium und Aluminiumlegierungen - StranggepressteStangen, Rohre und Profile - Teil 4: Vierkantstangen,Grenzabmaße und FormtoleranzenThis European Standard was approved by CEN on 10 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 755-4:2008: E
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