Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013)

This International Standard specifies requirements for the identification, location and preparation of samples and test pieces intended for mechanical tests on steel sections, bars, rod, flat products and tubular products as defined in ISO 6929. If agreed in the order this standard may also apply to other metallic products. These samples and test pieces are for use in tests which are carried out in conformity with the methods specified in the product or material standard or, in the absence of this, in the test standard. Where the requirements of the order or product standard differ from those given in this International Standard, then the requirements of the order or product standard apply.

Stahl und Stahlerzeugnisse - Lage und Vorbereitung von Probenabschnitten und Proben für mechanische Prüfungen (ISO 377:2013)

Diese Internationale Norm legt Anforderungen an die Kennzeichnung und Lage und Vorbereitung von Probenabschnitten und Proben für mechanische Prüfungen an den in ISO 6929 definierten Profilen, Stäben, Walzdraht, Flacherzeugnissen und rohrförmigen Erzeugnissen aus Stahl fest. Falls bei der Bestellung
vereinbart, kann diese Norm auch für andere metallische Erzeugnisse gelten. Sie gilt nicht für zerstörungsfreie Prüfungen. Die Probenabschnitte und Proben sind für Prüfungen bestimmt, die nach den in der Erzeugnis- oder Werkstoffnorm festgelegten Verfahren oder, falls in diesen nichts angegeben ist, nach dem in der Prüfnorm
angegebenen Verfahren durchgeführt werden. Wenn die Anforderungen in der Bestellung oder der Erzeugnisnorm von den Anforderungen nach dieser
Internationalen Norm abweichen, so gelten die Anforderungen entsprechend der Bestellung oder der Erzeugnisnorm.

Acier et produits en acier - Position et préparation des échantillons et éprouvettes pour essais mécaniques (ISO 377:2013)

L'ISO 377:2013 définit les exigences relatives à l'identification, à la position et à la préparation des échantillons et éprouvettes destinés aux essais mécaniques des profilés, barres, fils machine, et produits plats et tubulaires en acier, tels que définis dans l'ISO 6929. Par accord à la commande, l'ISO 377:2013 peut également s'appliquer à d'autres produits métalliques. Elle n'est pas applicable aux essais non destructifs. Ces échantillons et éprouvettes sont à utiliser dans les essais effectués conformément aux méthodes spécifiées dans la norme de produit ou, en absence de celle-ci, dans la norme d'essai.
Lorsque les exigences de la commande ou de la norme de produit diffèrent de celles données dans l'ISO 377:2013, les exigences définies à la commande ou spécifiées dans la norme de produit s'appliquent.

Jeklo in jekleni izdelki - Mesto jemanja in priprava vzorcev ter preskušanci za mehansko preskušanje (ISO 377:2013)

Ta mednarodni standard določa zahteve za prepoznavanje, lokacijo in pripravo vzorcev in preskusnih delov za mehanske preskuse na jeklenih delih, palicah, drogovih, ploščatih izdelkih in cevastih izdelkih, kot določa standard ISO 6929. Če je to sprejeto v sklepu, se lahko ta standard uporablja tudi za druge kovinske izdelke. Ti vzorci in preskusni deli se uporabljajo v preskusih, ki se opravljajo skladno z metodami, določenimi v standardu izdelka ali materiala oziroma, če ta ne obstaja, v preskusnem standardu. Kadar se zahteve sklepa ali standarda izdelka razlikujejo od zahtev iz tega mednarodnega standarda, se uporabljajo zahteve sklepa ali standarda izdelka.

General Information

Status
Withdrawn
Public Enquiry End Date
24-Jun-2012
Publication Date
10-Jul-2013
Withdrawal Date
06-Aug-2017
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
25-Jul-2017
Due Date
17-Aug-2017
Completion Date
07-Aug-2017

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 377:2013
01-september-2013
1DGRPHãþD
SIST EN ISO 377:1998
Jeklo in jekleni izdelki - Mesto jemanja in priprava vzorcev ter preskušanci za
mehansko preskušanje (ISO 377:2013)
Steel and steel products - Location and preparation of samples and test pieces for
mechanical testing (ISO 377:2013)
Stahl und Stahlerzeugnisse - Lage und Vorbereitung von Probenabschnitten und Proben
für mechanische Prüfungen (ISO 377:2013)
Acier et produits en acier - Position et préparation des échantillons et éprouvettes pour
essais mécaniques (ISO 377:2013)
Ta slovenski standard je istoveten z: EN ISO 377:2013
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
77.140.01 Železni in jekleni izdelki na Iron and steel products in
splošno general
SIST EN ISO 377:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 377:2013

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SIST EN ISO 377:2013


EUROPEAN STANDARD
EN ISO 377

NORME EUROPÉENNE

EUROPÄISCHE NORM
July 2013
ICS 77.040.10 Supersedes EN ISO 377:1997
English Version
Steel and steel products - Location and preparation of samples
and test pieces for mechanical testing (ISO 377:2013)
Acier et produits en acier - Position et préparation des Stahl und Stahlerzeugnisse - Lage und Vorbereitung von
échantillons et éprouvettes pour essais mécaniques (ISO Probenabschnitten und Proben für mechanische Prüfungen
377:2013) (ISO 377:2013)
This European Standard was approved by CEN on 29 June 2013.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 377:2013: E
worldwide for CEN national Members.

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SIST EN ISO 377:2013
EN ISO 377:2013 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 377:2013
EN ISO 377:2013 (E)
Foreword
This document (EN ISO 377:2013) has been prepared by Technical Committee ISO/TC 17 “Steel” in
collaboration with Technical Committee ECISS/TC 100 “General issues” the secretariat of which is held by
BSI.
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 January 2014, and conflicting national standards shall be withdrawn at
the latest by January 2014.
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 ISO 377:1997.
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.
Endorsement notice
The text of ISO 377:2013 has been approved by CEN as EN ISO 377:2013 without any modification.

3

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SIST EN ISO 377:2013

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SIST EN ISO 377:2013
INTERNATIONAL ISO
STANDARD 377
Third edition
2013-07-01
Steel and steel products — Location
and preparation of samples and test
pieces for mechanical testing
Acier et produits en acier — Position et préparation des échantillons
et éprouvettes pour essais mécaniques
Reference number
ISO 377:2013(E)
©
ISO 2013

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SIST EN ISO 377:2013
ISO 377:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 377:2013
ISO 377:2013(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
4.1 Representative testing . 2
4.2 Identification of sample products, samples, rough specimens and test pieces . 2
5 Preparation of samples and selection of test pieces . 3
5.1 Selection and dimensions of samples and location of test pieces. 3
5.2 Direction of axis of test pieces . 3
5.3 Condition and separation of samples . 4
6 Preparation of test pieces . 4
6.1 Cutting and machining . 4
6.2 Reference heat treatment . 5
Annex A (normative) Location of samples and test pieces . 6
© ISO 2013 – All rights reserved iii

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SIST EN ISO 377:2013
ISO 377:2013(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 20, General technical
delivery conditions, sampling and mechanical testing methods.
This third edition cancels and replaces the second edition (ISO 377:1997), which has been technically
revised and includes ISO 377:1997/Cor.1:1997.
iv © ISO 2013 – All rights reserved

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SIST EN ISO 377:2013
INTERNATIONAL STANDARD ISO 377:2013(E)
Steel and steel products — Location and preparation of
samples and test pieces for mechanical testing
1 Scope
This International Standard specifies requirements for the identification, location and preparation of
samples and test pieces intended for mechanical tests on steel sections, bars, rod, flat products and
tubular products as defined in ISO 6929. If agreed in the order, this International Standard can also
apply to other metallic products. These samples and test pieces are for use in tests that are carried out
in conformity with the methods specified in the product or material standard or, in the absence of this,
in the standard for the test method.
Where the requirements of the order or product standard differ from those given in this International
Standard, then the requirements of the order or product standard apply.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the editions cited applies. For undated references, the latest edition of the referenced
document, (including any amendments) apply.
ISO 3785, Metallic materials — Designation of test specimen axes in relation to product texture
ISO 6929, Steel products — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6929 and the following apply.
3.1
test unit
number of pieces or the tonnage of products to accept or reject together, on the basis of the verification
tests carried out on sample products in accordance with the requirements of the product standard or order
Note 1 to entry: See Figure 1.
3.2
sample product
item (e.g. bar, sheet, coil) selected for inspection or testing
Note 1 to entry: See Figure 1.
3.3
sample
sufficient quantity of material taken from the sample product for the purpose of producing one or
more test pieces
Note 1 to entry: See Figure 1.
Note 2 to entry: In certain cases, the sample can be the sample product.
© ISO 2013 – All rights reserved 1

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SIST EN ISO 377:2013
ISO 377:2013(E)

3.4
rough specimen
part of a sample having undergone mechanical treatment, for the purpose of producing a test piece
Note 1 to entry: See Figure 1.
3.5
test piece
part of a sample or rough specimen, with specified dimensions, machined or unmachined, brought to a
required condition for submission to a given verification test
Note 1 to entry: See Figure 1.
Note 2 to entry: In certain cases, the test piece can be the sample or the rough specimen.
3.6
reference condition
condition of a sample, rough specimen or test piece having undergone a heat treatment to represent the
intended final condition of the product
Note 1 to entry: In such cases, the sample, rough specimen or test piece is called the reference sample, reference
rough specimen or reference test piece.
4 General requirements
4.1 Representative testing
Sample, rough specimens and test pieces selected in accordance with Annex A shall be considered to be
representative of the product.
NOTE As a result of their production sequence, e.g. melting, casting hot or cold forming or both, heat
treatment etc., steel products are not homogeneous. The mechanical properties of samples taken from other
locations can be different.
4.2 Identification of sample products, samples, rough specimens and test pieces
Sample products, samples, rough specimens and test pieces shall be marked to ensure traceability to
the original product and their location and orientation in that product. For this purpose, if, during the
preparation of any one or more of the samples, rough specimens or test pieces, removal of the marks
cannot be avoided, transfer of these marks shall be carried out before the existing marks are removed
or in the case of automatic preparation equipment before the test piece is removed from the equipment.
In the case of specific inspection and where requested by the purchaser, the transfer of the marks shall
be carried out in the presence of the purchaser’s representative.
In the case of fully automatic in line preparation and testing systems, marking of samples, rough
specimens and test pieces is not necessary if an adequate control system exists, which defines the
procedures to follow in the event of system failure.
2 © ISO 2013 – All rights reserved

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SIST EN ISO 377:2013
ISO 377:2013(E)

Key
1 test unit (3.1)
2 sample product (3.2)
3 sample (3.3)
4 rough specimen (3.4)
5 test piece (3.5)
Figure 1 — Examples of terms defined in Clause 3
5 Preparation of samples and selection of test pieces
5.1 Selection and dimensions of samples and location of test pieces
The sample shall be selected so that the test piece can be located as indicated in Annex A. The sample
shall have sufficient dimensions to allow sufficient test pieces required for carrying out specified tests,
and for any retests that are necessary
...

SLOVENSKI STANDARD
oSIST prEN ISO 377 rev:2012
01-junij-2012
Jeklo in jekleni izdelki - Mesto jemanja in priprava vzorcev ter preskušanci za
mehansko preskušanje (ISO/DIS 377:2012)
Steel and steel products - Location and preparation of samples and test pieces for
mechanical testing (ISO/DIS 377:2012)
Stahl und Stahlerzeugnisse - Lage und Vorbereitung von Probenabschnitten und Proben
für mechanische Prüfungen (ISO/DIS 377:2012)
Acier et produits en acier - Position et préparation des échantillons et éprouvettes pour
essais mécaniques (ISO/DIS 377:2012)
Ta slovenski standard je istoveten z: prEN ISO 377 rev
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
77.140.01 Železni in jekleni izdelki na Iron and steel products in
splošno general
oSIST prEN ISO 377 rev:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 377 rev:2012

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oSIST prEN ISO 377 rev:2012


EUROPEAN STANDARD
DRAFT
prEN ISO 377 rev
NORME EUROPÉENNE

EUROPÄISCHE NORM

April 2012
ICS 77.040.10; 77.140.01 Will supersede EN ISO 377:1997
English Version
Steel and steel products - Location and preparation of samples
and test pieces for mechanical testing (ISO/DIS 377:2012)
Acier et produits en acier - Position et préparation des Stahl und Stahlerzeugnisse - Lage und Vorbereitung von
échantillons et éprouvettes pour essais mécaniques Probenabschnitten und Proben für mechanische Prüfungen
(ISO/DIS 377:2012) (ISO/DIS 377:2012)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
ECISS/TC 100.

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, 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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 377 rev:2012: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN ISO 377 rev:2012
prEN ISO 377:2012 (E)
Contents Page
Foreword .3
2

---------------------- Page: 4 ----------------------
oSIST prEN ISO 377 rev:2012
prEN ISO 377:2012 (E)
Foreword
This document (prEN ISO 377:2012) has been prepared by Technical Committee ISO/TC 17 "Steel" in
collaboration with Technical Committee ECISS/TC 100 “General Issues” the secretariat of which is held by
BSI.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 377:1997.
Endorsement notice
The text of ISO/DIS 377:2012 has been approved by CEN as a prEN ISO 377:2012 without any modification.
3

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oSIST prEN ISO 377 rev:2012

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oSIST prEN ISO 377 rev:2012

DRAFT INTERNATIONAL STANDARD ISO/DIS 377
ISO/TC17/SC 20 Secretariat: SIS
Voting begins on Voting terminates on

2012-04-12 2012-09-12
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  •  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  •  ORGANISATION INTERNATIONALE DE NORMALISATION


Steel and steel products — Location and preparation of samples
and test pieces for mechanical testing
Acier et produits en acier — Position et préparation des échantillons et éprouvettes pour essais mécaniques
[Revision of second edition (ISO 377:1997) and ISO 377:1997/Cor.1:1997]
ICS 77.040.10










ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.



THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
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.
©  International Organization for Standardization, 2012

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oSIST prEN ISO 377 rev:2012
ISO/DIS 377

Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.

ii © ISO 2012 – All rights reserved

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oSIST prEN ISO 377 rev:2012
ISO/DIS 377

Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Definitions .1
4 General requirements .3
4.1 Representative testing.3
4.2 Identification of sample products, samples, rough specimens and test pieces .3
5 Preparation of samples and selection of test pieces .4
5.1 Selection and dimensions of samples and location of test pieces.4
5.2 Direction of axis of test pieces .4
5.3 Condition and separation of samples .4
6 Preparation of test pieces .5
6.1 Cutting and machining.5
6.2 Reference heat treatment .5
Annex A (normative) Location of samples and test pieces .6

© ISO 2011 – All rights reserved iii

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oSIST prEN ISO 377 rev:2012
ISO/DIS 377

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 377 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 20, General technical
delivery conditions, sampling and mechanical testing methods.
This third edition cancels and replaces the second edition (ISO 377:1997), which has been technically revised.
iv © ISO 2011 – All rights reserved

---------------------- Page: 10 ----------------------
oSIST prEN ISO 377 rev:2012

DRAFT INTERNATIONAL STANDARD ISO/DIS 377

Steel and steel products — Location and preparation of samples
and test pieces for mechanical testing
1 Scope
This International Standard specifies requirements for the identification, location and preparation of samples
and test pieces intended for mechanical tests on steel sections, bars, rod, flat products and tubular products
as defined in ISO 6929. If agreed in the order this standard may also apply to other metallic products. These
samples and test pieces are for use in tests which are carried out in conformity with the methods specified in
the product or material standard or, in the absence of this, in the test standard.
Where the requirements of the order or product standard differ from those given in this International Standard,
then the requirements of the order or product standard apply.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the editions cited applies. For undated references, the latest edition of the referenced
document, (including any amendments) apply.
ISO 3785, Metallic materials — Designation of test specimen axes in relation to product texture
ISO 6929, Steel products — Definitions and classification
3 Definitions
For the purposes of this International Standard, the definitions given in ISO 6929 and the following apply.
3.1
test unit
number of pieces or the tonnage of products to be accepted or rejected together, on the basis of the tests to
be carried out on sample products in accordance with the requirements of the product standard or order
See Figure 1.
3.2
sample product
item (e.g. bar, sheet, coil) selected for inspection and/or testing
See Figure 1.
© ISO 2011 – All rights reserved 1

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oSIST prEN ISO 377 rev:2012
ISO/DIS 377

2
1
3
4
5

Key
1 test unit (3.1)
2 sample product (3.2)
3 sample (3.3)
4 rough specimen (3.4)
5 test piece (3.5)
Figure 1 — Examples of terms defined in Clause 3
2 © ISO 2011 – All rights reserved

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oSIST prEN ISO 377 rev:2012
ISO/DIS 377

3.3
sample
sufficient quantity of material taken from the sample product for the purpose of producing one or more test
pieces
See Figure 1.
NOTE In certain cases, the sample may be the sample product.
3.4
rough specimen
part of a sample having undergone mechanical treatment, for the purpose of producing a test piece
See Figure 1.
3.5
test piece
part of a sample or rough specimen, with specified dimensions, machined or unmachined, brought to a
required condition for submission to a given test
See Figure 1.
NOTE In certain cases, the test piece may be the sample or the rough specimen.
3.6
reference condition
condition of a sample, rough specimen or test piece having undergone a heat treatment to represent the
intended final condition of the product
NOTE In such cases the sample, rough specimen or test piece is called the reference sample, reference rough
specimen or reference test piece.
4 General requirements
4.1 Representative testing
Sample, rough specimens and test pieces selected in accordance with Annex A, shall be considered to be
representative of the product.
NOTE As a result of their production sequence i.e. melting, casting hot and/or cold forming, heat treatment etc., steel
products are not homogeneous. The mechanical properties of samples taken from other locations can be different.
4.2 Identification of sample products, samples, rough specimens and test pieces
Sample products, samples, rough specimens and test pieces shall be marked to ensure traceability to the
original product and their location and orientation in that product. For this purpose, if, during the preparation of
the sample, rough specimen and/or test pieces, removal of the marks cannot be avoided, transfer of these
marks shall be carried out before the existing marks are removed or in the case of automatic preparation
equipment before the test piece is removed from
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