EN 754-8:2016

Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 8: Porthole tubes, tolerances on dimensions and form

This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium alloy cold drawn porthole tubes with an outside diameter (OD) from 3 mm to 350 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 8 mm to 300 mm (other than round tube, see Figure 2), supplied in straight lengths.
This document only applies to cold drawn tube for general engineering applications made in the following alloys:
-   EN AW-1050A, EN AW-1200;
-   EN AW-3003, EN AW-3103;
-   EN AW-5005, EN AW-5005A, EN AW-5049, EN AW-5251, EN AW-5052;
-   EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A;
-   EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082;
-   EN AW-7020.
The temper designations used in this part are according to EN 515.
This document only applies to tube produced by the porthole/bridge method of extrusion only (and then cold drawn to the final dimensions).
This document does not apply to:
-   cold drawn tubes produced by the seamless, die/mandrel method (EN 754-7),
-   tubes delivered in coils (EN 13958),
-   coiled tubes cut to length (EN 13958).
(...)

Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 8: Mit Kammerwerkzeug Stranggepresste Rohre, Grenzabmaße und Formtoleranzen

Diese Europäische Norm legt die Grenzabmaße und Formtoleranzen für gezogene, mit Kammerwerkzeug stranggepresste Rohre aus Aluminium und Aluminiumlegierungen mit einem Außendurchmesser (OD) (en: outer diameter) von 3 mm bis 350 mm (Rundrohre, siehe Bild 1) oder mit einem Querschnitt, der in einem Umschlingungskreis (CD) (en: circumscribing circle) von 8 mm bis 300 mm enthalten ist (andere als Rundrohre, siehe Bild 2) fest. Sie werden in geraden Längen geliefert.
Dieses Dokument gilt ausschließlich für gezogene und aus nachfolgenden Werkstoffen hergestellte Rohre für allgemeine Anwendungen:
   EN AW-1050A, EN AW-1200;
   EN AW-3003, EN AW-3103;
   EN AW-5005, EN AW-5005A, EN AW-5049, EN AW-5251, EN AW-5052;
   EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A;
   EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082;
   EN AW-7020.
Die in diesem Dokument verwendeten Bezeichnungen der Werkstoffzustände entsprechen EN 515.
Dieses Dokument gilt nur für Rohre, die nach dem Strangpressverfahren mit Kammer /Brückenwerkzeug hergestellt werden (und dann auf die Endmaße gezogen werden).
Dieses Dokument gilt nicht für:
   Rohre, die nahtlos gezogen hergestellt werden (EN 754 7);
   Rohre, die in Ringen geliefert werden (EN 13958);
   Rohre in Ringen, die auf Länge geschnitten werden (EN 13958).

Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 8 : Tubes filés à pont, tolérances sur dimensions et forme

La présente Norme européenne spécifie les tolérances sur dimensions et forme des tubes filés à pont en aluminium et alliages d’aluminium avec un diamètre extérieur (OD) de 3 mm à 350 mm (tube rond, voir la Figure 1) ou avec une section transversale contenue dans le cercle circonscrit (CD) de 8 mm à 300 mm (autre que tube rond, voir la Figure 2) fournis en longueurs droites.
Le présent document ne s’applique qu’aux tubes étirés pour applications générales, fabriqués dans les alliages suivants :
-   EN AW-1050A, EN AW-1200 ;
-   EN AW-3003, EN AW-3103 ;
-   EN AW-5005, EN AW-5005A, EN AW-5049, EN AW-5251, EN AW-5052 ;
-   EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A ;
-   EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082 ;
-   EN AW-7020.
La désignation des états métallurgiques utilisés dans cette partie est conforme à l’EN 515.
Le présent document ne s’applique qu’aux tubes produits à l’aide d’une méthode de filage à pont (puis étirés à froid aux dimensions finales requises).
Il ne s’applique pas :
-   aux tubes filés produits à l’aide d’une méthode de filage à aiguille (EN 754-7) ;
-   aux tubes livrés en couronnes (EN 13958) ;
-   aux tubes en couronnes découpés à longueur (EN 13958).
(...)

Aluminij in aluminijeve zlitine - Hladno vlečene palice, drogovi in cevi - 8. del: Z večdelnimi matricami iztiskane cevi, tolerance mer in oblike

Ta evropski standard določa tolerance mer in oblike za hladno vlečene, z večdelnimi matricami iztiskane cevi iz aluminija in aluminijeve zlitine z zunanjim premerom (OD) od 3 mm do 350 mm (okrogla cev, glej sliko 1) ali s presekom v odprtini (CD) velikosti od 8 mm do 300 mm (neokrogla cev, glej sliko 2), dobavljene v ravnih presekih.
Ta dokument se uporablja samo za hladno vlečene cevi za splošno tehnično uporabo, izdelane iz naslednjih zlitin:
– EN AW-1050A, EN AW-1200;
– EN AW-3003, EN AW-3103;
– EN AW-5005, EN AW-5005A, EN AW-5049, EN AW-5251, EN AW-5052;
– EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A;
– EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082;
– EN AW-7020.
Oznake za popuščanje, uporabljene v tem delu, so skladne s standardom EN 515.
Ta dokument se uporablja samo za cevi, izdelane z metodo iztiskovanja z večdelnimi matricami/mostičkom (ki so nato hladno vlečene do končne mere).
Ta dokument se ne uporablja za:
– hladno vlečene cevi, izdelane z metodo iztiskovanja s celim utopom/trnom (EN 754-7),
– cevi, dobavljene v navojih (EN 13958),
– navojne cevi, razrezane po dolžini (EN 13958).

General Information

• Status: Published
• Publication Date: 07-Jun-2016
• Withdrawal Date: 30-Dec-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: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 15-Jun-2022
• Ref Project: SIST EN 754-8:2016 - Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 8: Porthole tubes, tolerances on dimensions and form

Relations

• Replaces: EN 754-8:2008 - Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 8: Porthole tubes, tolerances on dimensions and form
• Effective Date: 18-Jun-2014

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2016
1DGRPHãþD
SIST EN 754-8:2008
$OXPLQLMLQDOXPLQLMHYH]OLWLQH+ODGQRYOHþHQHSDOLFHGURJRYLLQFHYLGHO=
YHþGHOQLPLPDWULFDPLL]WLVNDQHFHYLWROHUDQFHPHULQREOLNH
Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 8: Porthole tubes,
tolerances on dimensions and form
Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 8: Mit
Kammerwerkzeug Stranggepresste Rohre, Grenzabmaße und Formtoleranzen
Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 8 : Tubes filés à pont,
tolérances sur dimensions et forme
Ta slovenski standard je istoveten z: EN 754-8:2016
ICS:
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 754-8
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 77.150.10 Supersedes EN 754-8:2008
English Version
Aluminium and aluminium alloys - Cold drawn rod/bar
and tube - Part 8: Porthole tubes, tolerances on
dimensions and form
Aluminium et alliages d'aluminium - Barres et tubes Aluminium und Aluminiumlegierungen - Gezogene
étirés - Partie 8 : Tubes filés à pont, tolérances sur Stangen und Rohre - Teil 8: Mit Kammerwerkzeug
dimensions et forme Stranggepresste Rohre, Grenzabmaße und
Formtoleranzen
This European Standard was approved by CEN on 11 April 2016.

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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 754-8:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 5
3 Tolerances on dimensions . 5
3.1 General . 5
3.2 Diameter - Round tube . 5
3.3 Width, depth or width across flats - squares, rectangles, hexagons, octagons . 6
3.4 Wall thickness variation (eccentricity) . 7
3.5 Length . 8
3.6 Squareness of cut ends . 9
4 Tolerances on form . 9
4.1 General . 9
4.2 Straightness . 9
4.3 Convexity–Concavity . 10
4.4 Twist . 11
4.5 Angularity . 12
4.6 Corner and fillet radii . 13
4.7 Depth of dents for round tubes . 13
Annex A (informative) Wall thickness variation (eccentricity) . 15
A.1 General . 15
A.2 Specifying round tube sizes and tolerances . 15
Bibliography . 17

European foreword
This document (EN 754-8:2016) 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 December 2016, and conflicting national standards
shall be withdrawn at the latest by December 2016.
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.
This document supersedes EN 754-8:2008.
The following technical modifications have been introduced during the revision:
— Subclause 3.2 Diameter - Round tube.
EN 754 comprises the following parts under the general title Aluminium and aluminium alloys — Cold
drawn rod/bar and tube:
— 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.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium
alloy cold drawn porthole tubes with an outside diameter (OD) from 3 mm to 350 mm (round tube,
see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 8 mm to
300 mm (other than round tube, see Figure 2), supplied in straight lengths.
This document only applies to cold drawn tube for general engineering applications made in the
following alloys:
— EN AW-1050A, EN AW-1200;
— EN AW-3003, EN AW-3103;
— EN AW-5005, EN AW-5005A, EN AW-5049, EN AW-5251, EN AW-5052;
— EN AW-6012, EN AW-6060, EN AW-6061, EN AW-6262, EN AW-6262A;
— EN AW-6063, EN AW-6063A, EN AW-6065, EN AW-6082;
— EN AW-7020.
The temper designations used in this part are according to EN 515.
This document only applies to tube produced by the porthole/bridge method of extrusion only (and
then cold drawn to the final dimensions).
This document does not apply to:
— cold drawn tubes produced by the seamless, die/mandrel method (EN 754-7),
— tubes delivered in coils (EN 13958),
— coiled tubes cut to length (EN 13958).

Figure 1 — Round tube
Figure 2 — Circumscribing circle for other than round tube
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 754-1:2016, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 1: Technical
conditions for inspection and delivery
3 Tolerances on dimensions
3.1 General
When outside diameter OD, inside diameter ID, and wall thickness t, (or their equivalent dimensions in
other than round tube) are all specified, standard tolerances shall apply to any two of these dimensions,
but not to all three. As a result, the purchaser shall only state two nominal dimensions on any given
order.
3.2 Diameter - Round tube
Mean diameter is defined as the average of two diameter measurements taken at right angles to each
other at any position along the length.
The maximum allowable deviation at any point from the specified diameter is the maximum difference
measured at any point along the length of the tube, i.e. it is inclusive of any ovality in the cross section.
The tolerances on diameter are specified in Table 1.
As detailed in EN 754-1:2016, Clause 4, if the original order does not make clear the nature of the
diameter tolerances required, the supplier shall interpret them as inclusive of any ovality (i.e. maximum
allowable deviation at any point from the specified diameter in Table 1). However, the diameter
tolerances may be expressed as both mean and inclusive of ovality if this is specifically requested by the
purchaser.
Table 1 — Tolerances on diameter for round tube
Dimensions in millimetres
Tolerance on diameter
Diameter (OD or ID)
Maximum allowable deviation of diameter
a
at any point from specified diameter
Maximum allowable deviation
of mean diameter from
Non-annealed
Tempers O,
Heat treated
e
Up to and
specified diameter
and non heat
Over H111 and
c
including
tube
b
Tx510
treated tube
≥ 3 8 d d d d
±0,04 ±0 08 ±0 12 ±0 25
, , ,
8 18 ±0,05 ±0,09 ±0,15 ±0,30
18 30 ±0,06 ±0,10 ±0,20 ±0,40
30 50 ±0,07 ±0,12 ±0,25 ±0,50
50 80 ±0,09 ±0,15 ±0,35 ±0,70
80 120 ±0,14 ±0,20 ±0,60 ±1,2
120 200 ±0,25 ±0,40 ±1,2 ±2,4
200 350 ±0,38 ±0,60 ±1,7 ±3,4
a
Not applicable to tubes having a wall thickness less than 2,5 % of the specified outside diameter. The tolerance for
tubes with wall thickness less than 2,5 % of the specified outside diameter shall be determined by multiplying the
applicable tolerance as follows:
— wall thickness over 2,0 % up to and including 2,5 % of outside diameter: 1,5 × tolerance;
— wall thickness over 1,5 % up to and including 2,0 % of outside diameter: 2,0 × tolerance;
— wall thickness over 1,0 % up to and including 1,5 % of outside diameter: 3,0 × tolerance;
— wall thickness over 0,5 % up to and including 1,0 % of outside diameter: 4,0 × tolerance.
b
Applies to all alloys in H1x, H2x, H3x tempers, and to alloy EN AW-6063 in the T832 temper.
c
Applies to all alloys in T3, T4, T6, T66, T73, T8, T9 and Tx511 tempers.
d
This tolerance applies for outside diameter only, i.e. tube in this size range can only be specified as “Outside
Diameter x Wall Thickness”.
e
Shall not apply to Tx510 or Tx511 tempers.

3.3 Width, depth or width across flats - squares, rectangles, hexagons, octagons
The tolerances on width, depth or width across flats are specified in Table 2.
Table 2 — Tolerances on width, depth or width across flats
Dimensions in millimetres
Maximum allowable deviation of width, depth or width across flats at
Width, depth or width
a
across flats
any point from the specified value
Non-annealed and non
Up to and
c d
Over
Heat treated tube Annealed tube
b
including
heat treated tube
≥ 8 18 ±0,20 ±0,30 ±0,60
18 30 ±0,25 ±0,40 ±0,80
30 50 ±0,35 ±0,50 ±1,0
50 80 ±0,50 ±0,70 ±1,4
80 120 ±0,70 ±1,0 ±2,0
120 200 ±1,0 ±1,5 ±3,0
a
Not applicable to tubes having a wall thickness less than 2,5 % of the specified outside width, depth or
width across flats. The tolerance for tubes with wall thickness less than2,5 % of the specified width, depth
or width across flats shall be determined by multiplying the applicable tolerance as follows:
— wall thickness over 2,0 % up to and including 2,5 % of outside parameter: 1,5 × tolerance;
— wall thickness over 1,5 % up to and including 2,0 % of outside parameter: 2,0 × tolerance;
— wall thickness over 1,0 % up to and including 1,5 % of outside parameter: 3,0 × tolerance;
— wall thickness over 0,5 %
...