1、Non-de structive testing Ultrasonic testing of austenitic and austenitic-ferritic stainless steels flat products of thickness equal to or greater than 6 mm (reflection method) The European Standard EN 10307:2001 has the status ofa British Standard ICs 77.040.20; 77.140.50 BS EN 10307:200 1 NO COPYIN
2、G WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 10307:2001 Amd. No. National foreword Date Comments This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy a
3、nd Strategy Committee on 20 March 2002 This British Standard is the official English language version of EN 10307:2001. The UKparticipation in its preparation was entrusted to Technical Committee ISE/72, Methods of physical and metallographic testing, which has the responsibility to: - - aid enquire
4、rs to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on t
5、his committee can be obtained on request to its secretary. Cr oss-r e fer enc e s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence I
6、ndex”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself
7、 confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 20 March 2002 ISBN O 580 392
8、95 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10307 October 2001 ICs 77.040.20; 77.140.50 English version Non-destructive testing - Ultrasonic testing of austenitic and a u ste n it i c-fe rri t i c Sta i n I ess s tee I s f I at prod u cts of t h i c kness eq u a I to or greater than 6
9、mm (reflection method) Essais non destructifs - Contrle par ultrasons des produits plats en acier inoxydable austnitique et austno-ferritique dpaisseur gale ou suprieure 6 mm (mthode par rflexion) Zerstrungsfreie Prfung - Ultraschallprfung von Flacherzeugnissen aus austenitischem und austenitisch- f
10、erritischem nichtrostendem Stahl ab 6 mm Dicke (Reflexionsverfahren) This European Standard was approved by CEN on 30 September 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
11、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other lan
12、guage made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, I
13、celand, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of explo
14、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10307:2001 E EN 10307:2001 (E) Contents page Foreword 3 1 2 3 4 5 6 7 8 8.1 8.2 8.3 8.4 8.5 9 10 11 12 13 13.1 13.2 13.3 13.4 14 14.1 14.2 15 16 Scope 4 Normative references 4 Terms and definitions 4 Items
15、for agreements . 5 Principle 5 Procedure . 6 Personnel qualification . 7 Ultrasonic test equipment . 7 Instrument . 7 Probe . 7 Calibration blocks 8 Reference blocks . 8 Couplant 8 Routine calibration and checking 8 Stage of manufacture 8 Surface condition . 9 Sensitivity setting 9 General 9 Scannin
16、g speed I 0 Testing of the flat product body . 10 Testing of the flat product edges . 10 Evaluation of discontinuities 10 Testing the flat product body . 11 Testing the edges 11 Recording level and acceptance criteria . 12 Test report 14 Scanning . 9 Annex A (informative) List of equivalent terms in
17、 several European languages 16 Bibliography 17 2 EN 10307:2001 (E) Foreword This European Standard has been prepared by Technical Committee ECISS/TC 2 “Steel - Physico-chemical and non-destructive testing”, the secretariat of which is held by AFNOR. This European Standard shall be given the status o
18、f a national standard, either by publication of an identical text or by endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at the latest by April 2002. Annex A is informative. This standard includes a Bibliography. According to the CENKENELEC Internal Reg
19、ulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
20、 United Kingdom. 3 EN 10307:2001 (E) 1 Scope This European Standard describes a method for the ultrasonic-testing of uncoated flat austenitic and austenitic- ferritic stainless steel product for internal discontinuities. It is applicable to flat product in nominal thickness range of 6 mm to 200 mm.
21、Mechanised, semi-automatic or automatic techniques may be used but should be agreed between the purchaser and the supplier. This standard also defines 3 quality classes for the flat product body (classes SI, S, and S,) and 4 quality classes (El, E, E, E4) for the edges in accordance with the criteri
22、a specified in clause 12. Other methods of testing, e.g. by transmission technique or other test equipments may be used at the manufacturers discretion provided that they give equivalent results to those obtained under the conditions of this standard. In the event of a dispute, only the method defin
23、ed in this standard prevails. Testing of flat product of thickness less than 6 mm may be the subject of special agreements between the parties concerned. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative refe
24、rences are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the
25、 latest edition of the publication referred to applies (including amendments). EN 473, Non destructive testing - Qualification and certification of NDT personnel - General principles. EN 583-2, Non-destructive testing - Ultrasonic examination - Part 2 : Sensitivity and range setting. EN 583-5, Non-d
26、estructive testing - Ultrasonic examination - Part 5 : Characterization and sizing of discontinuities. EN 1330-4, Non destructive testing - Terminology - Part 4 : Terms used in ultrasonic testing. EN 12223; Non-destructive testing - Ultrasonic examination - Specification for calibration block n O 1.
27、 EN 1 2668- 1 , Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part I : Instruments. EN 1 2668-2, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2 : Probes. EN 12668-3, Non-destructive testing
28、- Characterization and verification of ultrasonic examination equipment - Part 3 : Combined equipment. 3 Terms and definitions Definitions for general terms of non-destructive testing can be found in other European Standards, e.g. EN 1330-1 and EN 1330-2. For the purposes of this European Standard,
29、the terms and definitions given in EN 1330-4 apply, together with the following : 3.1 internal discontinuity any imperfection lying within the thickness of the flat product, e.g. planar or laminar imperfection, single-plane or multi-plane inclusion bands or clusters NOTE It is referred in the text a
30、s discontinuity. 4 EN 10307:2001 (E) 3.2 defect internal discontinuity, exceeding the specified maximum size or population density limits 3.3 population density the number of individual internal discontinuities of a size greater than a specified minimum size and less than a specified maximum size pe
31、r specified area of body or length of edge zone 3.4 manual testing testing by an operator applying an ultrasonic probe, or probes, to the flat product surface, manually executing the appropriate scanning pattern on the flat product surface and assessing ultrasonic signal indications on the electroni
32、c equipment screen either by direct viewing or by built-in signal amplitude alarm devices 3.5 automatic and semi-automatic testing testing using a mechanized means of applying the ultrasonic probe or probes to, and executing the appropriate scanning pattern on the product surface, together with ultr
33、asonic signal indication evaluation by electronic means NOTE performs basic equipment operation functions. Such testing can be either fully automatic with no operator involvement, or semi-automatic when the operator A list of equivalent terms in several European languages is given in annex A. 4 Item
34、s for agreements The following aspects concerning ultrasonic testing shall be agreed between the purchaser and supplier at the time of the enquiry or order : a) the manufacturing stage(s) at which ultrasonic testing shall be performed (see clause IO) ; b) the volume(s) to be tested and whether grid
35、scanning coverage or complete scanning coverage is required (see clause 13) ; c) the Quality Class required, or the Quality Classes and the zones to which they apply (see clause 15) ; d) the applicable recording level and acceptance criteria if different from those detailed in Tables 3 to 5 ; e) whe
36、ther any special scanning coverage, equipment or couplant is required in addition to that detailed in clauses 8 and 13 ; f) the scanning technique to be used if not manual ; g) the techniques to evaluate discontinuities (see clause 15) ; h) the technique(s) to be used for setting sensitivity (see cl
37、ause 12) ; i) whether the test is to be conducted in the presence of the purchaser or his representative ; j) whether a written procedure shall be submitted for approval by the purchaser (see clause 6). 5 Principle The method used is based on the reflection of ultrasonic waves (generally longitudina
38、l), the direction of which is approximately perpendicular to the surface of the product. The examination consists of : 5 EN 10307:2001 (E) a) locating and evaluation of discontinuity by comparing the amplitude of the discontinuity echo with the amplitude of the echo of a flat-bottomed hole of a give
39、n diameter and located at the same depth as the discontinuity. NOTE bottomed hole are taken into consideration : Only those discontinuities giving an echo amplitude equal or greater than that obtained with the reference flat- b) determining the area of the discontinuity according to the -6dB beam wi
40、dth technique. The width of the discontinuity shall be determined perpendicular to the rolling direction. The length shall be determined in the rolling direction. If areas with particular permeability are located, the testing conditions shall be adjusted in order to test these areas with the require
41、d sensitivity level. The examination is carried out during the first ultrasonic scan (first back wall echo) for all the product thicknesses and from one side only. 6 Procedure The inspection is normally carried out in the place of production or on the premises of the supplier. If specified on the or
42、der, the inspection may take place in the presence of the purchaser or his representative . 1) Ultrasonic testing shall be performed in accordance with a written procedure. Where specified in the enquiry or order, the written procedure shall be submitted to the purchaser for approval prior to testin
43、g. This written procedure shall be in the form of : a) a product specification ; or b) a procedure written specifically for the application ; or c) this European Standard may be used if it is accompanied by examination details specific to the application. The procedure shall contain the following de
44、tails as a minimum requirement : description of the item to be examined ; reference documents ; qualification and certification of examination personnel ; stage of manufacture at which the examination is carried out ; examination zones specified in terms of the applicable Quality Classes ; any speci
45、al preparation of scanning surfaces, if applicable ; couplant ; description of examination equipment ; calibration ; scanning plan ; description and sequence of examination operations ; recording levels ; 1) 6 In this case, all steps should be taken to ensure that the production process is not distu
46、rbed. EN 10307:2001 (E) m) characterisation of discontinuities ; n) acceptance criteria ; o) examination report. 7 Personnel qualification It is assumed that ultrasonic testing is performed by qualified and capable personnel. In order to prove this qualification, it is recommended to certify the per
47、sonnel in accordance with EN 473 or equivalent. 8 Ultrasonic test equipment 8.1 Instrument Instrument for manual testing shall feature A-scan presentation and shall comply with the requirements of EN 12668-1. 8.2 Probe 8.2.1 General The probes for manual testing shall conform to the requirements of
48、EN 12668-2. The probe shall have a frequency and dimensions such that the required sensitivity can be secured throughout the extent of the test field. The single transducer probes shall be such that their dead zone is as small as possible, .e. 15 % of the product thickness or 15 mm whichever is the
49、smaller. The focusing zone of the double transducer probes shall be adapted to the product thickness. 8.2.2 Nominal frequency The probes shall have a nominal frequency in the range of 1 MHz to 5 MHz. Probes of a nominal frequency that is outside the range of 1 MHz to 5 MHz may be used for automatic or semi-automatic testing and/or when the product exhibits high attenuation provided that the main requirements of this standard are met. When double transducer probes are used, the barrier separating the two transducers shall be oriented by an angle of 45“ to 90“ to the scan
