EN 755-9:2008

Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form

This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded profile with a cross section contained within a circumscribing circle not greater than 800 mm (see Figure 1).
The temper designations used in this part are according to EN 515.
This standard applies to extruded profiles for general engineering applications only.

Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 9: Profile, Grenzabmaße und Formtoleranzen

Dieses Dokument legt die Grenzabmaße und Formtoleranzen für stranggepresste Profile aus Aluminium und Aluminiumlegierungen fest, deren Querschnitt in einem Umschlingungskreis mit einem Durchmesser von maximal 800 mm enthalten ist (siehe Bild 1).
Die in diesem Dokument verwendeten Bezeichnungen der Werkstoffzustände entsprechen EN 515.
Diese Norm gilt nur für stranggepresste Profile für allgemeine Anwendungen.

Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 9: Profilés, tolérances sur dimensions et forme

Le présent document spécifie les tolérances sur dimensions et forme de profilés filés en aluminium et alliages d’aluminium avec une section transversale contenue dans le cercle circonscrit de 800 mm maximum (voir Figure 1).
La désignation des états métallurgiques utilisés dans cette partie est conforme à l’EN 515.
La présente norme ne s’applique qu’aux profilés filés pour applications générales.

Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 9. del: Profili, tolerance mer in oblike

General Information

• Status: Withdrawn
• Publication Date: 18-Mar-2008
• Withdrawal Date: 07-Jun-2016
• ICS: 77.120.10 - Aluminium and aluminium alloys
• 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 755-9:2008 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form

Relations

• Replaces: EN 755-9:2001 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form
• Effective Date: 22-Dec-2008
• Replaced By: EN 755-9:2016 - Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form
• Effective Date: 15-Jun-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2008
1DGRPHãþD
SIST EN 755-9:2002
Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 9. del:
Profili, tolerance mer in oblike
Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles,
tolerances on dimensions and form
Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile -
Teil 9: Profile, Grenzabmaße und Formtoleranzen
Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 9 : Profilés,
tolérances sur dimensions et forme
Ta slovenski standard je istoveten z: EN 755-9:2008
ICS:
77.150.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 755-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 77.120.10; 77.150.10 Supersedes EN 755-9:2001
English Version
Aluminium and aluminium alloys - Extruded rod/bar, tube and
profiles - Part 9: Profiles, tolerances on dimensions and form
Aluminium et alliages d'aluminium - Barres, tubes et Aluminium und Aluminiumlegierungen - Stranggepresste
profilés filés - Partie 9: Profilés, tolérances sur dimensions Stangen, Rohre und Profile - Teil 9: Profile, Grenzabmaße
et forme 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 755-9:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope.5
2 Alloy groups.5
3 Tolerances on dimensions .6
3.1 Cross-sectional dimensions.6
3.1.1 General.6
3.1.2 Tolerances on dimensions other than wall thickness .7
3.1.3 Tolerances on wall thickness of solid and hollow profiles .9
3.2 Length.12
3.3 Squareness of cut ends .13
4 Tolerances on form.13
4.1 General.13
4.2 Straightness.13
4.3 Convexity-Concavity.13
4.4 Contour.16
4.5 Twist.17
4.6 Angularity.18
4.7 Corner and fillet radii.19
Bibliography .21

Foreword
This document (EN 755-9:2008) has been prepared by Technical Committee CEN/TC 132 “Aluminium and
aluminium alloys”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2008, and conflicting national standards shall be
withdrawn at the latest by September 2008.
This document supersedes EN 755-9:2001.
Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 "Extruded and
drawn products" to revise EN 755-9:2001.
The following technical modifications have been introduced during the revision:
 Clause 2: Alloys EN AW-3102, EN AW-6010A, EN AW-6023 and EN AW-6360 are added in Group I
 Clause 2: Alloys EN AW-5049, EN AW-6014, EN AW-6262A, EN AW-6065, EN AW-6182, EN AW-7108,
EN AW-7108A and EN AW-7021 are added in Group II
 Subclause 4.3: Figure 6 is added to illustrate the measurements of convexity-concavity in hollow sections
EN 755 comprises the following parts under the general title "Aluminium and aluminium alloys — Extruded
rod/bar, tube and profiles":
 Part 1: Technical conditions for inspection and delivery
 Part 2: Mechanical properties
 Part 3: Round bars, tolerances on dimensions and form
 Part 4: Square bars, tolerances on dimensions and form
 Part 5: Rectangular bars, tolerances on dimensions and form
 Part 6: Hexagonal bars, tolerances on dimensions and form
 Part 7: Seamless tubes, tolerances on dimensions and form
 Part 8: Porthole tubes, tolerances on dimensions and form
 Part 9: Profiles, tolerances on dimensions and form
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardized
standards products under reasonable and not discriminatory conditions then this product shall be removed
from the corresponding standard.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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 the United Kingdom.
1 Scope
This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded
profile with a cross section contained within a circumscribing circle not greater than 800 mm (see Figure 1).
The temper designations used in this part are according to EN 515.
This standard applies to extruded profiles for general engineering applications only.

Key
1 circumscribing circle CD ≤ 800 mm
Figure 1 — Circumscribing circle
2 Alloy groups
For the purpose of this document, the alloys are distributed into two groups which correspond to varying
degrees of difficulty when manufacturing the products.
The division into group I and group II of the most commonly used general engineering alloys is specified in
Table 1. Grouping of other alloys is subject to agreement between supplier and purchaser.
Table 1 — Alloy groups
Group I EN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350
EN AW-3102, EN AW-3003, EN AW-3103
EN AW-5005, EN AW-5005A
EN AW-6101A, EN AW-6101B, EN AW-6005, EN AW-6005A, EN AW-6106,
EN AW-6008, EN AW-6010A, EN AW-6023, EN AW-6060,
EN AW-6360, EN AW-6063, EN AW-6063A, EN AW-6463
EN AW-2007, EN AW-2011, EN AW-2011A, EN AW-2014,
Group II
EN AW-2014A, EN AW-2017A, EN AW-2024, EN AW-2030
EN AW-5019, EN AW-5049, EN AW-5051A, EN AW-5251, EN AW-5052,
EN AW-5154A, EN AW-5454, EN AW-5754, EN AW-5083, EN AW-5086
EN AW-6012, EN AW-6014, EN AW-6018, EN AW-6351, EN AW-6061,
EN AW-6261, EN AW-6262, EN AW-6262A, 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,
EN AW-7021, EN AW-7022, EN AW-7049A, EN AW-7075
3 Tolerances on dimensions
3.1 Cross-sectional dimensions
3.1.1 General
The tolerances on the dimensions listed below (see Figures 2, 3 and 4) are specified in the relevant Tables 2
to 9.
 A: wall thicknesses except those enclosing the hollow spaces in hollow profiles;
 B: wall thicknesses enclosing the hollow spaces in hollow profiles except those between two hollow
spaces;
 C: wall thicknesses between two hollow spaces in hollow profiles;
 E: the length of the shorter leg of profiles with open ends;
 H: all dimensions (except wall thickness) between points on the cross section of the profile or the centres
of open screw holes.
Figure 2 — Definition of dimensions A, B, C, E, H
3.1.2 Tolerances on dimensions other than wall thickness
The tolerances on dimensions shall be as specified in Tables 2 and 3. For profiles with open ends (see
Figures 3, 4 and the relevant examples) the tolerances specified in Table 4 shall be added to those of Tables
2 and 3 for dimension H across open ended legs in order to obtain the tolerances on the gap between any
opposite points on these ends.
Table 2 — Tolerances on cross-sectional dimensions of solid and hollow profiles - Alloy group I
Dimensions in millimetres
a b
Dimension H Tolerances on H for circumscribing circle CD
Up to and 100 < CD 200 < CD 300 < CD 500 < CD
Over CD ≤ 100
including ≤ 200 ≤ 300 ≤ 500 ≤ 800
- 10 ± 0,25 ± 0,30 ± 0,35 ± 0,40 ± 0,50
10 25 ± 0,30 ± 0,40 ± 0,50 ± 0,60 ± 0,70
25 50 ± 0,50 ± 0,60 ± 0,80 ± 0,90 ± 1,0
50 100 ± 0,70 ± 0,90 ± 1,1 ± 1,3 ± 1,5
100 150 - ± 1,1 ± 1,3 ± 1,5 ± 1,7
150 200 - ± 1,3 ± 1,5 ± 1,8 ± 2,0
200 300 - - ± 1,7 ± 2,1 ± 2,4
300 450 - - - ± 2,8 ± 3,0
450 600 - - - ± 3,8 ± 4,2
600 800 - - - - ± 5,0
a
These tolerances do not apply to tempers O and Tx510. For these tempers, the tolerances shall be subject to agreement between
supplier and purchaser.
b
For profiles with open ends, see Figures 3 and 4, the tolerances for H in the area of the open ends shall be increased by the values
specified in Table 4.
Table 3 — Tolerances on cross-sectional dimensions of solid and hollow profiles - Alloy group II
Dimensions in millimetres
a b
Dimension H Tolerances on H for circumscribing circle CD
100 < CD 200 < CD 300 < CD 500 < CD
Up to and
Over CD ≤ 100
including ≤ 200 ≤ 300 ≤ 500 ≤ 800
- 10 ± 0,40 ± 0,50 ± 0,55 ± 0,60 ± 0,70
10 25 ± 0,50 ± 0,70 ± 0,80 ± 0,90 ± 1,1
25 50 ± 0,80 ± 0,90 ± 1,0 ± 1,2 ± 1,3
50 100 ± 1,0 ± 1,2 ± 1,3 ± 1,6 ± 1,8
± 2,0
100 150 - ± 1,5 ± 1,7 ± 1,8
150 200 - ± 1,9 ± 2,2 ± 2,4 ± 2,7
200 300 - - ± 2,5 ± 2,8 ± 3,1
300 450 - - - ± 3,5 ± 3,8
450 600 - - - ± 4,5 ± 5,0
600 800 - - - - ± 6,0
a
These tolerances do not apply to tempers O and Tx510. For these tempers, the tolerances shall be subject to agreement between
supplier and purchaser.
b
For profiles with open ends, see Figures 3 and 4, the tolerances for H in the area of the open ends shall be increased by the values
specified in Table 4.
Table 4 — Additions to the tolerances on cross-sectional dimensions H of solid and hollow profiles
with open ends - Alloy groups I and II
Dimensions in millimetres
Dimension E Additions to the tolerances on H in Tables 2 and 3
for dimensions across the ends of open ended
Over Up to and including
profiles
- 20 -
20 30 ± 0,15
30 40 ± 0,25
40 60 ± 0,40
60 80 ± 0,50
80 100 ± 0,60
100 125 ± 0,80
125 150 ± 1,0
150 180 ± 1,2
180 210 ± 1,4
210 250 ± 1,6
250 - ± 1,8
Figures 3 and 4 below show open ends on hollow and solid profiles. The determination of tolerances on cross-
sectional dimensions H is shown in the following calculation examples 1 and 2.
Examples of tolerance calculations across open ended profiles.
EXAMPLE 1
Dimension H: 20 mm
Dimension E: 100 mm Circumscribing circle CD 100 mm to 200 mm Alloy group I
The tolerance on H according to Table 2 is ± 0,40 mm; plus the additional tolerance according to Table 4
which is ± 0,60 mm; total tolerance on H is ± 1,0 mm.

Figure 3 — Hollow profile with open end
EXAMPLE 2
Dimension H: 40 mm
Dimension E: 50 mm Circumscribing circle CD 100 mm to 200 mm Alloy group II
The tolerance on H according to Table 3 is ± 0,90 mm; plus the additional tolerance according to Table 4
which is ± 0,40 mm; total tolerance on H is ± 1,3 mm.

Figure 4 — Solid profile with open end
3.1.3 Tolerances on wall thickness of solid and hollow profiles
The
...