1、BRITISH STANDARDBS EN ISO 3785:2006Metallic materials Designation of test specimen axes in relation to product textureThe European Standard EN ISO 3785:2006 has the status of a British StandardICS 77.040.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g4
2、9g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 3785:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 6 March 2006 BSI 6 March 2006ISBN 0 580 47918 8National forewordThis
3、British Standard is the official English language version of EN ISO 3785:2006. It is identical with ISO 3785:2006. It supersedes BS EN ISO 3785:1999 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee ISE/NFE/4, Mechanical testing of metals, to Subcommitte
4、e ISE/NFE/4/4, Toughness testing, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be fou
5、nd in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are respo
6、nsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep U
7、K interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 7 and
8、 a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 3785February 2006ICS 77.040.10 Supersedes EN ISO 3785:1995 English VersionMetal
9、lic materials - Designation of test specimen axes in relationto product texture (ISO 3785:2006)Matriaux mtalliques - Dsignation des axes desprouvettes en relation avec la texture du produit (ISO3785:2006)Metallische Werkstoffe - Kennzeichnung vonProbenachsen im Bezug zur Halbzeuggefgetextur (ISO3785
10、:2006)This European Standard was approved by CEN on 16 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical
11、 references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member
12、 into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
13、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All
14、rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 3785:2006: EForeword This document (EN ISO 3785:2006) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals“ in collaboration with Technical Committee ECISS/TC 1
15、 “Steel - Mechanical testing“, 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 August 2006, and conflicting national standards shall be withdrawn at the
16、latest by August 2006. This document supersedes EN ISO 3785:1995. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, Fra
17、nce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 3785:2006 has been approved by CEN as EN ISO 3785:2006 w
18、ithout any modifications. EN ISO 3785:2006Reference numberISO 3785:2006(E)INTERNATIONAL STANDARD ISO3785Second edition2006-02-01Metallic materials Designation of test specimen axes in relation to product texture Matriaux mtalliques Dsignation des axes des prouvettes en relation avec la texture du pr
19、oduit EN ISO 3785:2006ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Designation system 1 3 Designation of unnotched specimens 1 4 Designation of notched (or precracked) specimens. 3 5 Application of designation system in material specification. 3 Annex A (informative) Influence of mec
20、hanical working on material structure and properties 7 EN ISO 3785:2006iv 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 te
21、chnical 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 close
22、ly 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
23、 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 docume
24、nt may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3785 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 4, Toughness testing Fracture (F), Pendulum (P), Tear (T). This second editi
25、on cancels and replaces the first edition (ISO 3785:1976), which has been technically revised. EN ISO 3785:2006vIntroduction The measured mechanical properties of a metallic product, especially those characterizing ductility and toughness, such as elongation, reduction of area, fracture toughness an
26、d impact resistance, are dependent on the test specimen location within the product and orientation with respect to the products principal directions of metal working, grain flow or otherwise-produced texture. This International Standard specifies a method for designating specimen orientation in rel
27、ation to product texture. EN ISO 3785:2006blank1Metallic materials Designation of test specimen axes in relation to product texture 1 Scope This International Standard specifies a method for designating test specimen axes in relation to product texture by means of an X-Y-Z orthogonal coordinate syst
28、em. The system applies equally to unnotched and notched (or precracked) test specimens. The method is intended only for metallic materials with uniform texture that can be unambiguously determined. Test specimen orientation is decided before specimen machining, identified in accordance with the desi
29、gnation system specified in this International Standard, and recorded. 2 Designation system 2.1 General The method for relating specimen axes to the characteristic directions of the product makes use of an X-Y-Z orthogonal coordinate system for wrought metals: the letter X always denotes the directi
30、on of principal deformation (maximum grain flow in the product); the letter Y denotes the direction of least deformation; the letter Z denotes the direction normal to the X-Y plane. 2.2 Exception not aligned When the specimen direction does not coincide with the products characteristic grain-flow di
31、rections, two letters are used as described for unnotched specimens in 3.2.2 and 3.2.4, and for notched specimens in 4.3. 2.3 Exception no grain flow When there is no grain-flow direction as in a casting, specimen location and orientation shall be defined on a part drawing and the test result shall
32、carry no orientation designation. 3 Designation of unnotched specimens 3.1 General The designations of unnotched specimens variously aligned with respect to the products characteristic grain-flow directions are depicted in Figure 1. Only specimens fully aligned with, or lying midway between, the pro
33、ducts characteristic grain-flow directions are shown. EN ISO 3785:20062 3.2 Sheet, plate, bar (flat rolled products) 3.2.1 Aligned, grain flow different in all three orthogonal directions For products of non-circular cross-section and grain flow differing in the three orthogonal directions, specimen
34、s aligned with the products characteristic grain-flow directions are designated as either X-, Y- or Z-direction specimens as depicted in Figure 1 a). 3.2.2 Not aligned, grain flow different in all three orthogonal directions For products of non-circular cross-section and grain flow differing in the
35、three orthogonal directions, specimens lying midway between the products characteristic grain-flow directions are designated as XY-, XZ- or YZ-direction specimens as depicted in Figure 1 f). When the specimen lies neither in alignment with the products characteristic grain-flow directions nor midway
36、 between them, but rather at some other angle to them, then that angle shall be stated between the two designation letters, the first letter denoting the direction toward which the specimen axis is inclined, and the second letter the direction from which the specimen axis is inclined. This designati
37、on scheme is restricted to direction vectors that lie within any of the three planes described by the orthogonal X, Y and Z directions. When the direction vector lies outside those planes, specimen location and orientation hall be defined on a drawing of the product or part and the test result shall
38、 carry no orientation designation. 3.2.3 Aligned, equal cross-sectional grain flow For products of non-circular cross-section with equal Y- and Z-direction grain flow, specimens oriented normal to the X-direction (principal direction of) grain flow may be designated as either Y- or Z-direction speci
39、mens, as depicted in Figure 1 a). 3.2.4 Not aligned, equal cross-sectional grain flow For products of non-circular cross-section with equal Y- and Z-direction grain flow, specimens lying midway between the products characteristic grain-flow directions are designated as XY-, XZ-, or YZ-direction spec
40、imens, as depicted in Figure 1 f). When the specimen lies neither in alignment with the products characteristic grain-flow directions nor midway between them, but rather at some other angle to them, then that angle shall be stated between the two letters, the first letter denoting the direction towa
41、rd which the specimen axis is inclined, and the second letter the direction from which the specimen axis is inclined. This designation scheme is restricted to direction vectors the lie within any of the three planes described by the orthogonal X, Y and Z directions. When the direction vector lies ou
42、tside those planes, specimen location and orientation shall be defined on a drawing of the product or part and the test result shall carry no orientation designation. 3.3 Cylinders and thick-walled tubes Specimen depictions in Figures 1 b) and 1 c) pertain to solid cylinders; those in Figure 1 d) ap
43、ply to hollow cylinders (thick-walled tubes). 3.4 Thin-walled tubes, helical grain flow Specimen depictions in Figure 1 e) pertain to products with helical grain flow, typically thin-walled tubing. 3.5 Castings When there is no grain-flow direction as in a casting, specimen location and direction sh
44、all be defined on a part drawing and the test result shall carry no orientation designation. EN ISO 3785:200634 Designation of notched (or precracked) specimens 4.1 General Designating the plane and direction of crack extension for notched (or precracked) specimens, in relation to the products chara
45、cteristic grain-flow directions, is done using a hyphenated code wherein the letter(s) preceding the hyphen represent the direction normal to the crack plane and the letter(s) following the hyphen represent the anticipated direction of crack extension. 4.2 Aligned When the specimen direction is alig
46、ned with the products characteristic grain-flow directions, a single letter for each case is used to denote the direction perpendicular to the crack plane and the direction of intended crack extension, as depicted in Figure 2 a), 2 c) and 2 d). 4.3 Not aligned When the specimen orientation direction
47、s lie midway between the products characteristic grain-flow directions, two letters shall be used to denote the normal to the crack plane or the crack propagation direction, as depicted in Figure 2 b). When the specimen orientation directions lie neither in alignment with the products characteristic
48、 grain-flow directions nor midway between them, but rather at some other angle to them, then that angle shall be stated between the two letters, the first letter denoting the direction toward which the crack plane normal or propagation direction is inclined, and the second letter the direction from
49、which the crack plane normal or crack propagation direction is inclined. This designation scheme is restricted to direction vectors that lie within any of the three planes described by the orthogonal X, Y and Z directions. When the direction vector lies outside those planes, the specimen crack plane orientation and propagation direction shall be defined on a drawing of the product or part, and the test result shall carry no orientation designation. 4.4 No grain flow When there is no grain-flow direction as in a casting, specimen location
