EN ISO 377-2013 en Steel and steel products - Location and preparation of samples and test pieces for mechanical testing《钢和钢制品 机械试验用样品和试件的定位与制备》.pdf

1、BSI Standards PublicationBS EN ISO 377:2013Steel and steel products Location and preparationof samples and test piecesfor mechanical testing (ISO377:2013)BS EN ISO 377:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 377:2013. Itsupersedes BS EN ISO 377:

2、1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/100, Steel, General Issues.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions

3、 of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 74833 2ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under

4、 the authority of theStandards Policy and Strategy Committee on 31 July 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 377 July 2013 ICS 77.040.10 Supersedes EN ISO 377:1997English Version Steel and steel products - Location and pre

5、paration of samples and test pieces for mechanical testing (ISO 377:2013) Acier et produits en acier - Position et prparation des chantillons et prouvettes pour essais mcaniques (ISO 377:2013) Stahl und Stahlerzeugnisse - Lage und Vorbereitung von Probenabschnitten und Proben fr mechanische Prfungen

6、 (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 biblio

7、graphical 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 responsi

8、bility 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 Republ

9、ic 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 COMIT EUROPEN DE NORMALI

10、SATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 377:2013: EBS EN ISO 377:2013EN ISO 377:2013 (E) 3 Foreword This document (EN ISO 3

11、77:2013) 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

12、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 f

13、or 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

14、 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.

15、 Endorsement notice The text of ISO 377:2013 has been approved by CEN as EN ISO 377:2013 without any modification. BS EN ISO 377:2013ISO 377:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 General requirements . 24.1 Rep

16、resentative testing 24.2 Identification of sample products, samples, rough specimens and test pieces . 25 Preparation of samples and selection of test pieces . 35.1 Selection and dimensions of samples and location of test pieces. 35.2 Direction of axis of test pieces . 35.3 Condition and separation

17、of samples 46 Preparation of test pieces . 46.1 Cutting and machining . 46.2 Reference heat treatment 5Annex A (normative) Location of samples and test pieces 6BS EN ISO 377:2013ISO 377:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national stan

18、dards 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 org

19、anizations, 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

20、 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/directi

21、vesAttention 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 Intr

22、oduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny 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, Gener

23、al 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 reservedBS EN ISO 377:2013INTERNATIONAL STANDARD ISO 377

24、:2013(E)Steel and steel products Location and preparation of samples and test pieces for mechanical testing1 ScopeThis International Standard specifies requirements for the identification, location and preparation of samples and test pieces intended for mechanical tests on steel sections, bars, rod,

25、 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 stand

26、ard 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 referencesThe following referenced documents ar

27、e 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 t

28、extureISO 6929, Steel products Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 6929 and the following apply.3.1test unitnumber of pieces or the tonnage of products to accept or reject together, on the basis of the verification tests carried

29、out on sample products in accordance with the requirements of the product standard or orderNote 1 to entry: See Figure 1.3.2sample productitem (e.g. bar, sheet, coil) selected for inspection or testingNote 1 to entry: See Figure 1.3.3samplesufficient quantity of material taken from the sample produc

30、t for the purpose of producing one or more test piecesNote 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 1BS EN ISO 377:2013ISO 377:2013(E)3.4rough specimenpart of a sample having undergone mechanical treatment, for the

31、 purpose of producing a test pieceNote 1 to entry: See Figure 1.3.5test piecepart of a sample or rough specimen, with specified dimensions, machined or unmachined, brought to a required condition for submission to a given verification testNote 1 to entry: See Figure 1.Note 2 to entry: In certain cas

32、es, the test piece can be the sample or the rough specimen.3.6reference conditioncondition of a sample, rough specimen or test piece having undergone a heat treatment to represent the intended final condition of the productNote 1 to entry: In such cases, the sample, rough specimen or test piece is c

33、alled the reference sample, reference rough specimen or reference test piece.4 General requirements4.1 Representative testingSample, 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 sequen

34、ce, 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 piecesSample products, samples, ro

35、ugh 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, tra

36、nsfer 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 o

37、ut in the presence of the purchasers 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

38、.2 ISO 2013 All rights reservedBS EN ISO 377:2013ISO 377:2013(E)Key1 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 35 Preparation of samples and selection of test pieces5.1 Selection and dimensions of samples a

39、nd location of test piecesThe 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.5.2 Direction of axis of

40、 test piecesThe direction of the test piece axis relative to the principle direction of working shall be as specified in the appropriate product standard or order. The designation of the test piece axis shall be in accordance with ISO 3785. ISO 2013 All rights reserved 3BS EN ISO 377:2013ISO 377:201

41、3(E)5.3 Condition and separation of samples5.3.1 GeneralThe material or product standard shall specify whether the test is intended to determine the propertiesa) in the as-delivered condition (see 5.3.2); orb) in the reference condition (see 5.3.3).5.3.2 Testing in the as-delivered conditionA sample

42、 intended for testing in the as-delivered condition shall be separated from the product eithera) after the forming or heat treatment processes or both have been completed; orb) before the heat treatment process, in which case the heat treatment of the separated sample shall be carried out under the

43、same conditions as that of the product.Separation of the sample shall be carried out in such a manner so as not to change the characteristics of that part of the sample used to provide the test pieces.If flattening or straightening of the sample is unavoidable in the preparation of the test piece, t

44、he flattening or straightening shall be carried out cold unless otherwise specified in the product standard.5.3.3 Testing in the reference condition5.3.3.1 SampleA sample intended for testing in the reference condition shall be separated from the product at the stage of manufacture specified in the

45、product standard or order.Separation of the sample shall be carried out in such a manner so as not to change the characteristics of that part of the sample used to provide the test pieces after heat treatment.Flattening or straightening, if necessary, can be carried out either hot or cold before any

46、 heat treatment. When carried out hot, it shall be at a temperature below the final heat treatment temperature.5.3.3.2 Rough specimenA rough specimen intended for testing in the reference condition shall be prepared as follows.a) Mechanical treatment prior to heat treatment: when the sample is made

47、smaller for the process of heat treatment, the product standard shall specify the dimensions to which the rough specimen shall be reduced and the reduction process e.g. forging, rolling, machining.b) Heat treatment: the heat treatment of the rough specimen shall take place in an environment where th

48、e uniformity of the temperature is adequately ensured and the temperature is measured by means of a calibrated instrument. The heat treatment shall be in accordance with the requirements of the product standard or of the order.6 Preparation of test pieces6.1 Cutting and machiningCutting and machinin

49、g of samples and rough specimens for the preparation of test pieces shall be carried out taking such precautions as necessary to avoid superficial work hardening and heating of the material likely to change the mechanical characteristics. After machining, any marks left by the tool that can interfere with the results of the test shall be removed, either by grinding (with ample coolant 4 ISO 2013 All rights reservedBS EN ISO 377:2013ISO 377:2013(E)supply) or by polishing, provided that the chosen method of finishing maintains the dimensions and sh