SIST EN 754-1:2016
(Main)Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 1: Technical conditions for inspection and delivery
Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 1: Technical conditions for inspection and delivery
This European Standard specifies the technical conditions for inspection and delivery of aluminium and aluminium alloy cold drawn rod/bar and tube for general engineering applications.
This document applies to products which are extruded and then cold drawn.
This document does not apply to:
- forging stock (EN 603),
- products delivered in coils (EN 13958),
- coiled tubes cut to length (EN 13958).
Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 1: Technische Lieferbedingungen
Diese Europäische Norm legt die Technischen Lieferbedingungen für gezogene Stangen und Rohre aus Aluminium und Aluminiumlegierungen für allgemeine Anwendungen fest.
Dieses Dokument gilt für stranggepresste und anschließend gezogene Erzeugnisse.
Dieses Dokument gilt nicht für:
Schmiedevormaterial (EN 603);
Erzeugnisse, die aufgewickelt geliefert werden (EN 13958);
Rohre in Ringen, die auf Länge geschnitten werden (EN 13958).
Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 1 : Conditions techniques de contrôle et de livraison
La présente Norme européenne spécifie les conditions techniques de contrôle et de livraison des barres et tubes étirés en aluminium et alliages d’aluminium à usage général.
Elle s’applique aux produits qui sont filés, puis étirés à froid.
Le présent document ne s’applique pas :
— aux produits destinés à la forge (EN 603) ;
— aux produits livrés en couronnes (EN 13958) ;
— aux tubes en couronnes découpés à longueur (EN 13958).
Aluminij in aluminijeve zlitine - Hladno vlečene palice/drogovi in cevi - 1. del: Tehnični pogoji za pregled in dobavo
Ta evropski standard določa tehnične pogoje za pregled in dobavo hladno vlečenih palic/drogov ter cevi iz aluminija in aluminijevih zlitin za splošno tehnično uporabo.
Ta dokument se uporablja za izdelke, ki so iztiskani in hladno vlečeni.
Ta dokument se ne uporablja za:
– material za kovanje (EN 603),
– izdelke, dobavljene v navojih (EN 13958),
– navojne cevi, razrezane po dolžini (EN 13958).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 754-1:2016
01-julij-2016
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SIST EN 754-1:2008
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Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 1: Technical
conditions for inspection and delivery
Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 1:
Technische Lieferbedingungen
Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 1 : Conditions
techniques de contrôle et de livraison
Ta slovenski standard je istoveten z: EN 754-1:2016
ICS:
77.150.10 Aluminijski izdelki Aluminium products
SIST EN 754-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 754-1:2016
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SIST EN 754-1:2016
EN 754-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2016
EUROPÄISCHE NORM
ICS 77.150.10 Supersedes EN 754-1:2008
English Version
Aluminium and aluminium alloys - Cold drawn rod/bar
and tube - Part 1: Technical conditions for inspection and
delivery
Aluminium et alliages d'aluminium - Barres et tubes Aluminium und Aluminiumlegierungen - Gezogene
étirés - Partie 1: Conditions techniques de contrôle et Stangen und Rohre - Teil 1: Technische
de livraison Lieferbedingungen
This European Standard was approved by CEN on 10 January 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 754-1:2016 E
worldwide for CEN national Members.
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SIST EN 754-1:2016
EN 754-1:2016 (E)
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 . 7
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
Annex B (normative) Resistance to stress-corrosion cracking for alloy EN AW-7075 in
tempers T73, T7351, T73510 and T73511 – Electrical conductivity . 16
Bibliography . 17
2
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SIST EN 754-1:2016
EN 754-1:2016 (E)
European foreword
This document (EN 754-1:2016) 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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 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 754-1:2008.
Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5
"Extruded and drawn products" to revise EN 754-1:2008.
The following technical modifications have been introduced during the revision:
— In the Normative references clause, EN 10002-1 was replaced by EN ISO 6892-1.
EN 754, Aluminium and aluminium alloys — Cold drawn rod/bar and tube comprises the following parts:
— 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.
3
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SIST EN 754-1:2016
EN 754-1:2016 (E)
1 Scope
This European Standard specifies the technical conditions for inspection and delivery of aluminium and
aluminium alloy cold drawn rod/bar and tube for general engineering applications.
This document applies to products which are extruded and then cold drawn.
This document does not apply to:
— forging stock (EN 603),
— products delivered in coils (EN 13958),
— coiled tubes cut to length (EN 13958).
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 754-2, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 2: Mechanical
properties
EN 754-3, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 3: Round bars,
tolerances on dimensions and form
EN 754-4, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 4: Square bars,
tolerances on dimensions and form
EN 754-5, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 5: Rectangular bars,
tolerances on dimensions and form
EN 754-6, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 6: Hexagonal bars,
tolerances on dimensions and form
EN 754-7, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 7: Seamless tubes,
tolerances on dimensions and form
EN 754-8, Aluminium and aluminium alloys — Cold drawn rod/bar and tube — Part 8: Porthole tubes,
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
EN 10204, Metallic products — Types of inspection documents
EN 12258-1:2012, Aluminium and aluminium alloys — Terms and definitions — Part 1: General terms
4
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SIST EN 754-1:2016
EN 754-1:2016 (E)
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
[SOURCE: EN 13957:2008, 3.1]
4 Ordering information
The order document shall contain the following:
a) form and type of product:
1) form of the product (cold drawn rod/bar or tube). If tube, whether seamless or
porthole/bridge;
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 754-2 for mechanical property limits;
c) a reference to this document (EN 754-1);
d) dimensions and shape of the product:
1) round tube:
i) length;
and only two of the following dimensions:
5
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SIST EN 754-1:2016
EN 754-1:2016 (E)
ii) outside diameter;
iii) inside diameter;
iv) the tolerances for outside or inside diameter shall state as to whether the proposed
tolerances are mean or inclusive of ovality (i.e. the maximum allowable deviation at any
point from the specified diameter. If this is not made clear on the order, then 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;
g) any requirements for inspection documents;
h) any special requirements agreed between supplier and purchaser:
6
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SIST EN 754-1:2016
EN 754-1:2016 (E)
1) marking of products;
2) reference 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 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 or 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 754-2 or those agreed
between supplier and purchaser and stated in the order document.
Typical Brinell hardness values are given in EN 754-2, but they are not binding for acceptance purposes.
However, a Brinell hardness value may be agreed upon for acceptance testing.
5.5 Freedom from surface defects
The surface shall be free from defects prejudicial to its suitable and proper use.
7
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SIST EN 754-1:2016
EN 754-1:2016 (E)
The product shall have a smooth
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 1: Technische LieferbedingungenAluminium et alliages d'aluminium - Barres et tubes étirés - Partie 1 : Conditions techniques de contrôle et de livraisonAluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 1: Technical conditions for inspection and delivery77.150.10Aluminijski izdelkiAluminium productsICS:Ta slovenski standard je istoveten z:FprEN 754-1kSIST FprEN 754-1:2015en,fr,de01-oktober-2015kSIST FprEN 754-1:2015SLOVENSKI
STANDARD
kSIST FprEN 754-1:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 754-1
July 2015 ICS 77.150.10 Will supersede EN 754-1:2008English Version
Aluminium and aluminium alloys - Cold drawn rod/bar and tube -Part 1: Technical conditions for inspection and delivery
Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 1 : Conditions techniques de contrôle et de livraison Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 1: Technische Lieferbedingungen This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 132.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 754-1:2015 EkSIST FprEN 754-1:2015
FprEN 754-1:2015 (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 .7 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 . 11 8 Marking of products . 11 9 Packaging . 12 10 Arbitration . 12 Annex A (normative)
Location of test pieces . 13 Annex B (normative)
Resistance to stress-corrosion cracking for alloy EN AW-7075 in tempers T73, T7351, T73510 and T73511 – Electrical conductivity . 16 Bibliography . 17
kSIST FprEN 754-1:2015
FprEN 754-1:2015 (E) 3 European foreword This document (FprEN 754-1:2015) 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 754-1:2008. Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 "Extruded and drawn products" to revise EN 754-1:2008. The following technical modifications have been introduced during the revision: — In the Normative references clause, EN 10002-1 was replaced by EN ISO 6892-1. EN 754, Aluminium and aluminium alloys — Cold drawn rod/bar and tube comprises the following parts: — 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 kSIST FprEN 754-1:2015
FprEN 754-1:2015 (E) 4 1 Scope This European Standard specifies the technical conditions for inspection and delivery of aluminium and aluminium alloy cold drawn rod/bar and tube for general engineering applications. This document applies to products which are extruded and then cold drawn. This document does not apply to: — forging stock (EN 603), — products delivered in coils (EN 13958), — coiled tubes cut to length (EN 13958). 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 754-2, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 2: Mechanical properties EN 754-3, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 3: Round bars, tolerances on dimensions and form EN 754-4, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 4: Square bars, tolerances on dimensions and form EN 754-5, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 5: Rectangular bars, tolerances on dimensions and form EN 754-6, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 6: Hexagonal bars, tolerances on dimensions and form EN 754-7, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 7: Seamless tubes, tolerances on dimensions and form EN 754-8, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 8: Porthole tubes, 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 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 kSIST FprEN 754-1:2015
FprEN 754-1:2015 (E) 5 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 (cold drawn rod/bar or tube). If tube, whether seamless or porthole/bridge; 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 754-2 for mechanical property limits; c) a reference to this document (EN 754-1); d) dimensions and shape of the product: 1) round tube: i) length; and only two of the following dimensions: ii) outside diameter; iii) inside diameter; iv) the tolerances for outside or inside diameter shall state as to whether the proposed tolerances are mean or inclusive of ovality (i.e. the maximum allowable deviation at any point from the specified diameter. If this is not made clear on the order, then the supplier shall assume that the specified tolerances for either or both outside and inside diameters are inclusive of ovality. kSIST FprEN 754-1:2015
FprEN 754-1:2015 (E) 6 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; g) any requirements for inspection documents; h) any special requirements agreed between supplier and purchaser: 1) marking of products; 2) reference to drawings, part numbers, etc.; 3) additional or special testing, e.g. stress corrosion testing; 4) surface finish requirements; 5) surface protection; kSIST FprEN 754-1:2015
FprEN 754-1:2015 (E) 7 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 or 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 754-2 or those agreed between supplier and purchaser and stated in the order document. Typical Brinell hardness values are given in EN 754-2, but they are not binding for acceptance purposes. However, a Brinell hardness value may be agreed upon for acceptance testing. 5.5 Freedom from surface defects The 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 and material properties continue to meet the specification. For product
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