SIST EN 755-1:2016
(Main)Aluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 1: Technical conditions for inspection and delivery
Aluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 1: Technical conditions for inspection and delivery
This European Standard specifies the technical conditions for inspection and delivery of wrought aluminium and aluminium alloy extruded rod/bar, tube and profile for general engineering applications.
This European Standard does not apply to:
- forging stock (EN 603 (all parts),
- extruded precision profiles in alloys EN AW-6060 and EN AW-6063 (EN 12020) (all parts),
- products delivered in coils (EN 13957),
- coiled tubes cut to length (EN 13957).
Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 1: Technische Lieferbedingungen
Diese Europäische Norm legt die Technischen Lieferbedingungen für stranggepresste Stangen, Rohre und Profile aus Aluminium und Aluminium-Knetlegierungen für allgemeine technische Anwendungen fest.
Diese Europäische Norm gilt nicht für:
Schmiedevormaterial (EN 603 [alle Teile]),
stranggepresste Präzisionsprofile der Legierungen EN AW-6060 und EN AW-6063
(EN 12020 [alle Teile]),
Erzeugnisse, die aufgewickelt geliefert werden (EN 13957),
Rohre in Ringen, die auf Länge geschnitten werden (EN 13957).
Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 1 : Conditions techniques de contrôle et de livraison
La présente Norme européenne spécifie les conditions techniques de contrôle et de livraison des barres, tubes et profilés filés en aluminium et alliages d’aluminium à usage général.
La présente Norme européenne ne s’applique pas :
- aux produits destinés à la forge (EN 603 (toutes les parties)) ;
- aux profilés de précision filés en alliages EN AW-6060 et EN AW-6063 (EN 12020) (toutes les parties)) ;
- aux produits livrés en couronnes (EN 13957) ;
- aux tubes en couronnes découpés à longueur (EN 13957).
Aluminij in aluminijeve zlitine - Iztiskane palice/drogovi, cevi in profili - 1. del: Tehnični pogoji za pregled in dobavo
Ta evropski standard določa tehnične pogoje za pregled in dobavo za iztiskane palice/drogove, cevi in profile iz gnetnega aluminija in aluminijeve zlitine za splošno tehnično uporabo.
Ta evropski standard se ne uporablja za:
– material za kovanje (EN 603, vsi deli),
– iztiskane precizne profile iz zlitin EN AW-6060 in EN AW-6063 (EN 12020) (vsi deli),
– izdelke, dobavljene v navojih (EN 13957),
– navojne cevi, razrezane po dolžini (EN 13957).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 755-1:2016
01-september-2016
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SIST EN 755-1:2008
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Aluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 1: Technical
conditions for inspection and delivery
Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile -
Teil 1: Technische Lieferbedingungen
Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 1 : Conditions
techniques de contrôle et de livraison
Ta slovenski standard je istoveten z: EN 755-1:2016
ICS:
77.150.10 Aluminijski izdelki Aluminium products
SIST EN 755-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 755-1:2016
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SIST EN 755-1:2016
EN 755-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 77.150.10 Supersedes EN 755-1:2008
English Version
Aluminium and aluminium alloys - Extruded rod/bar, tube
and profiles - Part 1: Technical conditions for inspection
and delivery
Aluminium et alliages d'aluminium - Barres, tubes et Aluminium und Aluminiumlegierungen -
profilés filés - Partie 1 : Conditions techniques de Stranggepresste Stangen, Rohre und Profile - Teil 1:
contrôle et de livraison Technische Lieferbedingungen
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 755-1:2016 E
worldwide for CEN national Members.
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SIST EN 755-1:2016
EN 755-1:2016 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Ordering information . 6
5 Requirements . 8
5.1 Production and manufacturing processes . 8
5.2 Quality control . 8
5.3 Chemical composition limits . 8
5.4 Mechanical properties . 8
5.5 Freedom from surface defects . 9
5.6 Tolerances on dimensions and form . 9
5.7 Stress corrosion cracking resistance . 9
5.8 Additional requirements . 9
6 Test procedures . 9
6.1 Sampling . 9
6.1.1 Samples for chemical analysis . 9
6.1.2 Specimens for mechanical testing . 10
6.1.3 Test pieces for tensile test . 11
6.2 Test methods . 11
6.2.1 Chemical composition limits . 11
6.2.2 Tensile testing . 11
6.2.3 Brinell hardness testing. 11
6.2.4 Measurement of dimensions . 11
6.2.5 Surface finish . 12
6.2.6 Resistance to stress corrosion cracking . 12
6.2.7 Additional tests . 12
6.3 Re-tests . 12
6.3.1 Chemical composition limits . 12
6.3.2 Mechanical properties . 12
6.3.3 Other properties . 13
7 Inspection documents . 13
8 Marking of products . 13
9 Packaging . 13
10 Arbitration . 13
Annex A (normative) Location of test pieces . 14
A.1 Round, square and hexagonal bar . 14
A.1.1 For diameter (D) or width across flats (S) up to and including 40 mm . 14
A.1.2 For diameter (D) or width across flats (S) over 40 mm . 14
A.2 Rectangular bar . 15
A.2.1 For thickness up to and including 12,5 mm . 15
2
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SIST EN 755-1:2016
EN 755-1:2016 (E)
A.2.2 For thickness (T) over 12,5 mm and up to and including 40 mm . 15
A.2.3 For thickness (T) exceeding 40 mm . 15
A.3 Tube . 16
A.4 Profiles. 16
A.4.1 For thickness up to and including 12,5 mm . 16
A.4.2 For thickness over 12,5 mm and up to and including 40 mm . 16
A.4.3 For thickness exceeding 40 mm . 17
Annex B (normative) Resistance to stress-corrosion cracking for alloy EN AW-7075 in
tempers T73, T73510 and T73511 – Electrical conductivity . 18
Bibliography . 19
3
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SIST EN 755-1:2016
EN 755-1:2016 (E)
European foreword
This document (EN 755-1:2016) 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 755-1:2008.
The following technical modifications have been introduced during the revision:
— Clause 4, Ordering information,
— Subclause 5.5, Freedom from surface defects,
— Subclause 6.3.2, Mechanical properties.
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.
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.
4
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SIST EN 755-1:2016
EN 755-1:2016 (E)
1 Scope
This European Standard specifies the technical conditions for inspection and delivery of wrought
aluminium and aluminium alloy extruded rod/bar, tube and profile for general engineering
applications.
This European Standard does not apply to:
— forging stock (EN 603 (all parts)),
— extruded precision profiles in alloys EN AW-6060 and EN AW-6063 (EN 12020 (all parts)),
— products delivered in coils (EN 13957),
— coiled tubes cut to length (EN 13957).
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 515, Aluminium and aluminium alloys — Wrought products — Temper designations
EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products —
Part 3: Chemical composition and form of products
EN 755-2, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 2: Mechanical
properties
EN 755-3, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 3: Round bars,
tolerances on dimensions and form
EN 755-4, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 4: Square bars,
tolerances on dimensions and form
EN 755-5, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 5: Rectangular
bars, tolerances on dimensions and form
EN 755-6, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 6: Hexagonal
bars, tolerances on dimensions and form
EN 755-7, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 7: Seamless
tubes, tolerances on dimensions and form
EN 755-8, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 8: Porthole
tubes, tolerances on dimensions and form
EN 755-9, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 9: Profiles,
tolerances on dimensions and form
EN 2004-1, Aerospace series — Test methods for aluminium and aluminium alloy products — Part 1:
Determination of electrical conductivity of wrought aluminium alloys
5
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SIST EN 755-1:2016
EN 755-1:2016 (E)
EN 10204, Metallic products — Types of inspection documents
EN 12258-1:2012, Aluminium and aluminium alloys — Terms and definitions — Part 1: General terms
EN 14242, Aluminium and aluminium alloys — Chemical analysis — Inductively coupled plasma optical
emission spectral analysis
EN 14361, Aluminium and aluminium alloys — Chemical analysis — Sampling from metal melts
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
ISO 9591, Corrosion of aluminium alloys — Determination of resistance to stress corrosion cracking
ASTM G47, Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and
7XXX Aluminum Alloy Products
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12258-1:2012 and the
following apply.
3.1
order document
document or set of documents agreed between supplier and purchaser at the time of ordering
4 Ordering information
The order document shall contain the following:
a) form and type of product:
1) form of the product (extruded rod/bar, tube or profile). If tube, whether seamless or
porthole/bridge extruded,
2) reference to EN 573-3 for chemical composition limits,
3) reference to EN 515 for temper designation,
4) purchaser application, in particular whether subsequent anodizing is intended. This shall be
clearly stated on the order document;
b) reference to EN 755-2 for mechanical property limits;
c) reference to this document (EN 755-1);
d) dimensions and shape of the product:
1) round tube:
i) length,
6
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SIST EN 755-1:2016
EN 755-1:2016 (E)
and only two of the following dimensions:
ii) outside diameter,
iii) inside diameter,
The tolerances for inside and outside diameter shall state as to whether the proposed
tolerances are mean or inclusive of ovality (ie the maximum allowable deviation at any point
from the specified diameter). If this is not made clear on the order, the supplier shall assume
that the specified tolerances for either or both outside and inside diameters are inclusive of
ovality. However, if the purchaser specifically requires that the outside and/or inside diameter
tolerances are to be both mean and inclusive of ovality, then this shall be clearly stated on the
order,
iv) wall thickness;
2) round bar:
i) diameter,
ii) length;
3) square and hexagonal bar:
i) width across flats,
ii) length;
4) rectangular bar:
i) width,
ii) thickness,
iii) length;
5) all other cases:
i) drawing of cross section,
ii) length;
e) tolerances on dimensions and form, with reference to the appropriate European Standard and/or a
drawing;
f) quantity:
1) mass,
2) number of pieces,
3) total length,
4) tolerance on quantity;
7
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SIST EN 755-1:2016
EN 755-1:2016 (E)
g) any requirements for inspection documents;
h) any special requirements agreed between supplier and purchaser:
1) marking of products,
2) references to drawings, part numbers, etc.,
3) additional or special testing, e.g. stress corrosion testing,
4) surface finish requirements,
5) surface protection,
6) packaging,
7) inspection prior to delivery,
8) use of A value instead of A value for elongation;
50mm
i) for products intended to be anodized by the purchaser, the order document shall also contain the
information about the intended particular surface treatment with reference to the relevant
European Standard.
5 Requirements
5.1 Production and manufacturing processes
Unless otherwise specified in the order document, the production and manufactur
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 1: Technische LieferbedingungenAluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 1 : Conditions techniques de contrôle et de livraisonAluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 1: Technical conditions for inspection and delivery77.150.10Aluminijski izdelkiAluminium productsICS:Ta slovenski standard je istoveten z:FprEN 755-1kSIST FprEN 755-1:2015en,fr,de01-november-2015kSIST FprEN 755-1:2015SLOVENSKI
STANDARD
kSIST FprEN 755-1:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 755-1
September
t r s w ICS
y yä s w rä s r Will supersede EN
y w wæ sã t r r zEnglish Version
Aluminium and aluminium alloand profiles æ Part
sã Technical conditions for inspection and delivery Aluminium et alliages d 5aluminium æ Barresá tubes et profilés filés æ Partie
s ã Conditions techniques de contrôle et de livraison
Aluminium und Aluminiumlegierungen æ Stranggepresste Stangená Rohre und Profile æ Teil
sã Technische Lieferbedingungen This draft European Standard is submitted to CEN members for unique acceptance procedureä It has been drawn up by the
If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä
This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä
Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä FprEN
y w wæ sã t r s w EkSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 5 4 Ordering information . 5 5 Requirements . 7 5.1 Production and manufacturing processes . 7 5.2 Quality control . 7 5.3 Chemical composition limits . 7 5.4 Mechanical properties . 7 5.5 Freedom from surface defects . 8 5.6 Tolerances on dimensions and form . 8 5.7 Stress corrosion cracking resistance . 8 5.8 Additional requirements . 8 6 Test procedures . 8 6.1 Sampling . 8 6.2 Test methods . 10 6.3 Re-tests . 11 7 Inspection documents . 12 8 Marking of products . 12 9 Packaging . 12 10 Arbitration . 12 Annex A (normative)
Location of test pieces. 13 A.1 Round, square and hexagonal bar . 13 A.2 Rectangular bar . 14 A.3 Tube . 15 A.4 Profiles . 15 Annex B (normative)
Resistance to stress-corrosion cracking for alloy EN AW-7075 in tempers T73, T73510 and T73511 – Electrical conductivity . 17 Bibliography . 18
kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 3 European foreword This document (FprEN 755-1:2015) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 755-1:2008. The following technical modifications have been introduced during the revision: — Clause 4, Ordering information, — subclause 5.5, Freedom from surface defects, — subclause 6.3.2, Mechanical properties. 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 kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 4 1 Scope This European Standard specifies the technical conditions for inspection and delivery of wrought aluminium and aluminium alloy extruded rod/bar, tube and profile for general engineering applications. This European Standard does not apply to: — forging stock (EN 603 (all parts), — extruded precision profiles in alloys EN AW-6060 and EN AW-6063 (EN 12020) (all parts), — products delivered in coils (EN 13957), — coiled tubes cut to length (EN 13957). 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 515, Aluminium and aluminium alloys - Wrought products - Temper designations EN 573-3, Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition and form of products EN 755-2, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 2: Mechanical properties EN 755-3, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 3: Round bars, tolerances on dimensions and form EN 755-4, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and form EN 755-5, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 5: Rectangular bars, tolerances on dimensions and form EN 755-6, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 6: Hexagonal bars, tolerances on dimensions and form EN 755-7, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7: Seamless tubes, tolerances on dimensions and form EN 755-8, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8: Porthole tubes, tolerances on dimensions and form EN 755-9, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form EN 2004-1, Aerospace series - Test methods for aluminium and aluminium alloy products - Part 1: Determination of electrical conductivity of wrought aluminium alloys kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 5 EN 10204, Metallic products - Types of inspection documents EN 12258-1:2012, Aluminium and aluminium alloys - Terms and definitions - Part 1: General terms EN 14242, Aluminium and aluminium alloys - Chemical analysis - Inductively coupled plasma optical emission spectral analysis EN 14361, Aluminium and aluminium alloys - Chemical analysis - Sampling from metal melts EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1) EN ISO
6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1) ISO 9591, Corrosion of aluminium alloys - Determination of resistance to stress corrosion cracking ASTM G47, Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminium Alloy Products 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12258-1:2012 and the following apply. 3.1 order document document or set of documents agreed between supplier and purchaser at the time of ordering 4 Ordering information The order document shall contain the following: a) form and type of product: 1) form of the product (extruded rod/bar, tube or profile). If tube, whether seamless or porthole/bridge extruded, 2) reference to EN 573-3 for chemical composition limits, 3) reference to EN 515 for temper designation, 4) purchaser application, in particular whether subsequent anodising is intended. This shall be clearly stated on the order document. b) reference to EN 755-2 for mechanical property limits; c) reference to this document (EN 755-1); d) dimensions and shape of the product: 1) round tube: i) length,
kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 6 and only two of the following dimensions: ii) outside diameter, iii) inside diameter, iv) The tolerances for inside and outside diameter shall state as to whether the proposed tolerances are mean or inclusive of ovality (ie the maximum allowable deviation at any point from the specified diameter). If this is not made clear on the order, the supplier shall assume that the specified tolerances for either or both outside and inside diameters are inclusive of ovality. However, if the purchaser specifically requires that the outside and/or inside diameter tolerances must be both mean and inclusive of ovality then this shall be clearly stated on the order. v) wall thickness. 2) round bar: i) diameter, ii) length. 3) square and hexagonal bar: i) width across flats, ii) length. 4) rectangular bar: i) width, ii) thickness, iii) length. 5) all other cases: i) drawing of cross section, ii) length. e) tolerances on dimensions and form, with reference to the appropriate European Standard and/or a drawing; f) quantity: 1) mass, 2) number of pieces, 3) total length, 4) tolerance on quantity. kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 7 g) any requirements for inspection documents; h) any special requirements agreed between supplier and purchaser: 1) marking of products, 2) references to drawings, part numbers, etc., 3) additional or special testing, e.g. stress corrosion testing, 4) surface finish requirements, 5) surface protection, 6) packaging, 7) inspection prior to delivery, 8) use of A50mm value instead of A value for elongation. i) for products intended to be anodised by the purchaser, the order document shall also contain the information about the intended particular surface treatment with reference to the relevant European Standard. 5 Requirements 5.1 Production and manufacturing processes Unless otherwise specified in the order document, the production and manufacturing processes shall be left to the discretion of the manufacturer. Unless it is explicitly stated in the order document, no obligation shall be placed on the manufacturer to use the same processes for subsequent similar orders. 5.2 Quality control The supplier shall be responsible for the performance of all inspection and tests required by the relevant European Standard and/or the particular specification prior to shipment of the product. If the purchaser wishes to inspect the product at the manufacturer's works, he shall notify the supplier at the time of placing the order. 5.3 Chemical composition limits The chemical composition limits shall be in conformity with the requirements specified in EN 573-3. If the purchaser requires closer limits for elements than those specified in the above standard, these limits shall be according to an agreement between supplier and purchaser and stated in the order document. 5.4 Mechanical properties The mechanical properties shall be in conformity with those specified in EN 755-2 or those agreed between supplier and purchaser and stated in the order document. Typical Brinell hardness values are given in EN 755-2, but they are not binding for acceptance purposes. However, a Brinell hardness value may be agreed upon for acceptance testing. kSIST FprEN 755-1:2015
FprEN 755-1:2015 (E) 8 5.5 Freedom from surface defects The extruded surface shall be free from defects prejudicial to its suitable and proper use. The product shall have a smooth and clean surface. However, small surface defects such as light scratches, indentations, laminations, discolouration and non-uniform surface appearance resulting from heat-treatment, etc., which cannot always be totally avoided, are generally permitted on the product surface. Whilst an operation designed to mask a fault is not permitted, the elimination of a superficial fault is permissible provided that the dimensional tolerances a
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