1、BRITISH STANDARD Iron and steel Ultrasonic testing of H beams with parallel flanges and IPE beams The European Standard EN 10306:2001 has the status ofa British Standard ICs 77.040.20 BS EN i0306:2002 NO COPXNG WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 10306:2002 Amd. No. Nat
2、ional 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 and Strategy Committee on 26 February 2002 This British Standard is the official English lan
3、guage version of EN 10306:2001. The UKparticipation in its preparation was entrusted to Technical Committee ISE/72, Methods of physical and metallographic testing, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible European committee any enquiries o
4、n 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 this committee can be obtained on request to its secretary. Cr oss-r e fer enc e s The Br
5、itish 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 Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Brit
6、ish 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 confer immunity from legal obligations. Summary of pages This document comprises a fron
7、t cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 26 February 2002 ISBN O 580 39177 9 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10306
8、 December 2001 ICs 77.040.20; 77.140.70 English version Iron and steel - Ultrasonic testing of H beams with parallel flanges and IPE beams Produits sidrurgiques - Contrle par ultrasons des poutrelles larges ailes faces parallles et des poutrelles IPE Eisen und Stahl - Ultraschallprfung von H-Profile
9、n mit parallelen Flanschen und IPE-Profilen 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 standard without any alterati
10、on. 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 language made by translation
11、 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, Iceland, Ireland, Italy, L
12、uxembourg, 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 exploitation in any form and b
13、y any means reserved worldwide for CEN national Members. Ref. No. EN 10306:2001 E EN 10306:2001 (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 14 15 16 Scope 4 Normative references 4 Terms and definitions 4 Items for agreements . 5 Principle 5 Procedure
14、 . 5 Personnel qualification . 6 Ultrasonic test equipment . 6 Instrument . 6 Probe . 7 Reference blocks . 7 Couplant 7 Routine calibration and checking 7 Stage of manufacture 7 Surface condition . 8 Sensitivity setting 8 Scanning . 8 General 8 Testing of the beams . 10 Evaluation of discontinuities
15、 10 Calibration blocks 7 Scanning speed IO Recording level and acceptance criteria . 10 Test report 11 Annex A (informative) List of equivalent terms in several European languages . 13 Bibliography 14 2 EN 10306:2001 (E) Foreword This European Standard has been prepared by Technical Committee ECISS/
16、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 of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2002, and conflicting national standard
17、s shall be withdrawn at the latest by June 2002. Annex A is informative. This standard includes a Bibliography. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Rep
18、ublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 10306:2001 (E) 1 Scope This European Standard specifies a reflection method for the ultrasonic testing of H beams with paralle
19、l flanges and IPE beams for the detection of presence of internal discontinuities. Mechanised, semi-automatic or automatic techniques may be used but should be agreed between the purchaser and the supplier. 2 Normative references This European Standard incorporates by dated or undated reference, pro
20、visions from other publications. These normative references 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 i
21、t by amendment or revision. For undated references the 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 - P
22、art 2: Sensitivity and range setting. EN 583-5, Non-destructive 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 exami
23、nation - Specification for calibration block n O 1. EN 1 2668- 1 , Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part I: Instruments. EN 12668-2, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part
24、 2: Probes. EN 12668-3, Non-destructive testing - 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-
25、2. For the purposes of this European Standard, the terms and definitions given in EN 1330-4 apply, together with the following : 3.1 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
26、flat product surface and assessing ultrasonic signal indications on the electronic equipment screen either by direct viewing or by built-in signal amplitude alarm devices 3.2 automatic and semi-automatic testing testing using a mechanised means of applying the ultrasonic probe or probes to, and exec
27、uting the appropriate scanning pattern on the flat product surface, together with ultrasonic signal indication evaluation by electronic means NOTE petforms basic equipment operation functions Such testing can be either fully automatic with no operator involvement, or semi-automatic when the operator
28、 A list of equivalent terms in several European languages is given in annex A. 4 EN 10306:2001 (E) 4 Items 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 whic
29、h ultrasonic testing shall be performed (see clause IO) ; b) the sounding plan (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 evaluation level and acceptance criteria if different from those detailed in Ta
30、bles 1 and 2 ; e) whether 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 technique(s) to be used for setting sensitivity (see clause 12) ; h) whether the test is to be con
31、ducted in the presence of the purchaser or his representative ; i) 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 longitudinal), the direction of which is approximately
32、 perpendicular to the surface of the product. The examination consists of : a) locating and evaluation of discontinuity by comparing the amplitude of the discontinuity echo with the amplitude of the echo of flat-bottomed hole of a given diameter and located at the same depth as the discontinuity; NO
33、TE bottomed hole are taken into consideration. Only those discontinuities giving an echo amplitude equal to or greater than that obtained with the reference flat- b) determining the area of the discontinuity according to the -6dB beam width technique. The width of the discontinuity shall be determin
34、ed perpendicular to the rolling direction. The length shall be determined in the rolling direct ion. The examination is carried out with a double transducer probe during the first ultrasonic scan (first back wall echo) and from one side only. 6 Procedure The inspection is normally carried out in the
35、 place of production or on the premises of the sup lier If specified on the order, the inspection may take place in the presence of the purchaser or his representative . 1P Ultrasonic testing shall be performed in accordance with a written procedure. Where specified in the enquiry or order, the writ
36、ten procedure shall be submitted to the purchaser for approval prior to testing. 1) In this case, all steps should be taken to ensure that the production process is not disturbed. 5 EN 10306:2001 (E) This written procedure shall be in the form of : a) b) c) The procedure shall contain the following
37、details as a minimum requirement : a product specification ; or, a procedure written specifically for the application ; or, this European Standard may be used if it is accompanied by examination details specific to the application. description of the item to be examined ; reference documents ; quali
38、fication 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 special preparation of scanning surfaces, if applicable ; couplant ; description of examination equipment
39、; calibration ; scanning plan ; description and sequence of examination operations ; recording levels ; characterisation of discontinuities ; acceptance criteria ; examination report. Personnel qualification It is assumed that ultrasonic testing is performed by qualified and capable personnel. In or
40、der to prove this qualification, it is recommended to certify the personnel in accordance with EN 473 or equivalent. 8 Ultrasonic test equipment 8.1 Instrument The instrument for manual testing shall feature A-scan presentation and shall comply with the requirements of EN 12668-1. 6 EN 10306:2001 (E
41、) 8.2 Probe 8.2.1 General The double transducer probes to be used for manual testing shall conform to the requirements of EN 12668-2. Additionally, other types of probes may be used. Such supplementary probes need not comply with EN 12668-2 requirements. 8.2.2 Nominal frequency Probes shall have a n
42、ominal frequency in the range from 2 MHz to 5 MHz. 8.2.3 Type of probe The greatest transducer dimension shall be in the range from 9 mm to 25 mm unless otherwise agreed. 8.3 Calibration blocks Calibration blocks shall conform to the requirements detailed in EN 12223. 8.4 Reference blocks Reference
43、blocks shall be made from a material having similar acoustic properties to the product to be examined. The surface condition of the reference block shall be representative of the surface condition of the product to be examined. Unless otherwise specified the reference block shall contain at least th
44、ree reflectors covering the entire depth range under examination. The form of the reference block will depend upon the application. The bottom of the holes shall be as flat a practicable, parallel to the ultrasound entry surface and free from pits or score marks that significantly degrade its ultras
45、onic reflectivity. The tolerances on the diameter of the flat-bottomed hole or width of recess shall be f 5 %. 8.5 Couplant The couplant used shall be appropriate to the application. The same type of couplant shall be used for calibration, setting sensitivity, scanning and evaluation of discontinuit
46、ies. After examination, couplant shall be removed if its presence could adversely affect later manufacturing or inspection operations or the integrity of the product. NOTE Water is normally used but other coupling media may be used at the discretion of the supplier. 9 Routine calibration and checkin
47、g The combined equipment (instrument and probes) for manual testing shall be calibrated and checked in accordance with the requirements detailed in EN 12668-3. 10 Stage of manufacture Ultrasonic testing shall be performed in the delivery condition unless otherwise agreed at the time of enquiry and o
48、rder. 7 EN 10306:2001 (E) 11 Surface condition The products are normally examined without any special surface preparation. Scanning surfaces shall be free from paint, non-adhering scale, dry couplant, surface irregularities or any other substance which could reduce coupling efficiency, hinder the fr
49、ee movement of the probe or cause errors in interpretation. The surface condition shall be considered acceptable providing the specified quality class can be achieved. 12 Sensitivity setting Calibration of the ultrasonic test equipment for use particularly requires that the time base, power and amplification be determined according to EN 583-2. The time base is calibrated to a value at which the distance, on the oscilloscope screen, between the interface echo and back-wall echo is sufficient to allow a defect echo to be clearly detected between them. The power and amplification
