EN 755-7:2008

Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless tubes, tolerances on dimensions and form

This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded seamless 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 tube produced by the seamless die/mandrel method of extrusion. This standard applies to extruded seamless tube for general engineering applications only.
The temper designations used in this part are according to EN 515.
This European Standard does not apply to:
-   extruded tubes produced by porthole/bridge method (EN 755-8),
-   tubes delivered in coils (prEN 13957),
-   coiled tubes cut to length (prEN 13957).

Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 7: Nahtlose Rohre, Grenzabmaße und Formtoleranzen

Dieses Dokument legt die Grenzabmaße und Formtoleranzen für stranggepresste nahtlose Rohre aus Aluminium und Aluminiumlegierungen mit einem Außendurchmesser (OD) von 8 mm bis 450 mm (Rundrohre, siehe Bild 1) oder mit einem Querschnitt, der in einem Umschlingungskreis (CD) von 10 mm bis 350 mm ent-halten ist (andere als Rundrohre, siehe Bild 2) fest. Sie werden in geraden Längen geliefert.
Diese Norm gilt nur für Rohre, die nach dem nahtlosen Strangpressverfahren hergestellt werden. Diese Norm gilt für stranggepresste nahtlose Rohre für allgemeine Anwendungen.
Die in diesem Dokument verwendeten Bezeichnungen der Werkstoffzustände entsprechen EN 515.
Diese Europäische Norm gilt nicht für:
-   Rohre, die nach dem Strangpressverfahren mit Kammer /Brückenwerkzeug hergestellt werden (EN 755-8);
-   Rohre, die in Ringen geliefert werden (prEN 13957);
-   Rohre in Ringen, die auf Länge geschnitten werden (prEN 13957).
Bild 1 - Rundrohr
Bild 2 - Umschlingungskreis für Rohre, ausgenommen Rundrohre

Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 7: Tubes filés sur aiguille, tolérances sur dimensions et forme

Le présent document spécifie les tolérances sur dimensions et forme des tubes filés sur aiguille en aluminium et alliages d’aluminium avec un diamètre extérieur (OD) de 8 mm à 450 mm (tube rond, voir Figure 1) ou avec une section transversale contenue dans le cercle circonscrit (CD) de 10 mm à 350 mm (autre que tube rond, voir Figure 2), fournis en longueurs droites.
La présente norme ne s’applique qu’aux tubes produits à l’aide d’une méthode de filage sans soudure/sur aiguille. Le présent document s’applique aux tubes filés sur aiguille pour applications générales uniquement.
La désignation des états métallurgiques utilisés dans cette partie est conforme à l’EN 515.
La présente Norme européenne ne s’applique pas :
   aux tubes filés produits à l’aide d’une méthode de filage à pont (EN 755-8) ;
   aux produits livrés en couronnes (prEN 13957) ;
   aux tubes en couronnes découpés à longueur (prEN 13957).
Figure 1  Tube rond
Figure 2  Cercle circonscrit pour produits autres que tube rond

Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 7. del: Nevarjene (narejene iz celega) cevi, tolerance mer in oblike

General Information

• Status: Withdrawn
• Publication Date: 18-Mar-2008
• Withdrawal Date: 07-Jun-2016
• ICS: 77.150.10 - Aluminium products
• Technical Committee: CEN/TC 132 - Aluminium and aluminium alloys
• Drafting Committee: CEN/TC 132/WG 5 - Extruded and drawn products
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 08-Jun-2016
• Ref Project: SIST EN 755-7:2008 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless tubes, tolerances on dimensions and form

Relations

• Replaces: EN 755-7:1998 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless tubes, tolerances on dimensions and form
• Effective Date: 22-Dec-2008
• Replaced By: EN 755-7:2016 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless tubes, tolerances on dimensions and form
• Effective Date: 15-Jun-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 755-7:2008
01-maj-2008
1DGRPHãþD
SIST EN 755-7:1999
Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 7. del:
Nevarjene (narejene iz celega) cevi, tolerance mer in oblike
Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless
tubes, tolerances on dimensions and form
Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile -
Teil 7: Nahtlose Rohre, Grenzabmaße und Formtoleranzen
Aluminium et alliage d'aluminium - Barres, tubes et profilés - Partie 7 : Tubes filés sur
aiguille, tolérances sur dimensions et forme
Ta slovenski standard je istoveten z: EN 755-7:2008
ICS:
77.150.10
SIST EN 755-7:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 755-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 77.150.10 Supersedes EN 755-7:1998
English Version
Aluminium and aluminium alloys - Extruded rod/bar, tube and
profiles - Part 7: Seamless tubes, tolerances on dimensions and
form
Aluminium et alliages d'aluminium - Barres, tubes et Aluminium und Aluminiumlegierungen - Stranggepresste
profilés filés - Partie 7: Tubes filés sur aiguille, tolérances Stangen, Rohre und Profile - Teil 7: Nahtlose Rohre,
sur dimensions et forme Grenzabmaße und Formtoleranzen
This 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 European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards 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 translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 755-7:2008: E
worldwide for CEN national Members.

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EN 755-7:2008 (E)
Contents Page
Foreword. 3
1 Scope. 5
2 Alloy groups. 6
3 Tolerances on dimensions. 6
3.1 General. 6
3.2 Diameter - Round tube. 6
3.3 Width, depth or width across flats - squares, rectangles, hexagons, octagons. 7
3.4 Wall thickness variation (eccentricity). 8
3.5 Length. 9
3.6 Squareness of cut ends. 10
4 Tolerances on form. 10
4.1 General. 10
4.2 Straightness. 10
4.3 Convexity-Concavity.
...