1、October 2016 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.040.20; 77.140.85!%Y“2579254w
2、ww.din.deDIN EN 10228-4Nondestructive testing of steel forgings Part 4: Ultrasonic testing of austenitic and austeniticferritic stainless steel forgings;English version EN 102284:2016,English translation of DIN EN 10228-4:2016-10Zerstrungsfreie Prfung von Schmiedestcken aus Stahl Teil 4: Ultraschall
3、prfung von Schmiedestcken aus austenitischem und austenitischferritischem nichtrostendem Stahl;Englische Fassung EN 102284:2016,Englische bersetzung von DIN EN 10228-4:2016-10Essais non destructifs des pices forges en acier Partie 4: Contrle par ultrasons des pices forges en aciers inoxydables austn
4、itiques et austnoferritiques;Version anglaise EN 102284:2016,Traduction anglaise de DIN EN 10228-4:2016-10SupersedesDIN EN 102284:199910www.beuth.deDocument comprises 27 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.10.16 DIN
5、 EN 10228-4:2016-10 2 A comma is used as the decimal marker. National foreword This document (EN 10228-4:2016) has been prepared by Technical Committee ECISS/TC 111 “Steel castings and forgings” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenaussc
6、huss Eisen und Stahl (DIN Standards Committee Iron and Steel), Working Committee 10 Schmiedestcke. Amendments This standard differs from DIN EN 10228-4:1999-10 as follows: a) the scope of the standard has been harmonized with that given in Part 3 of EN 10228; b) normative references have been update
7、d; c) a general update of terms and definitions has been made; d) a new Table 1 for the quality classes has been included; e) the information relating to the stages of manufacture given in Clause 9 has been harmonized with Part 3 of EN 10228; f) in Table 2, the methods of production for types 3b and
8、 3c forgings have been updated; g) in Table 4, a new footnote c) relating to the use of angle-beam probes for type 3c forgings has been included; h) in Clause 13, the terminology and Figures 1 and 2 have been updated; i) in Annex A, the NOTE to Table A.1 has been revised; j) the standard has been ed
9、itorially revised. Previous editions DIN EN 10228-4: 1999-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10228-4 June 2016 ICS 77.040.20; 77.140.85 Supersedes EN 10228-4:1999English Version Non-destructive testing of steel forgings - Part 4: Ultrasonic testing of austenitic and austenitic-f
10、erritic stainless steel forgings Essais non destructifs des pices forges en acier - Partie 4: Contrle par ultrasons des pices forges en aciers inoxydables austnitiques et austno-ferritiquesZerstrungsfreie Prfung von Schmiedestcken aus Stahl - Teil 4: Ultraschallprfung von Schmiedestcken aus austenit
11、ischem und austenitisch-ferritischem nichtrostendem Stahl This European Standard was approved by CEN on 3 October 2015. 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
12、 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 lan
13、guage 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, Denma
14、rk, 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 andUnited Kingdom. EUROPEAN COMMITTEE F
15、OR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10228-4:2016 EEN 10228-4:2016 (E
16、) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Mandatory information 6 5 Test procedure . 6 5.1 General 6 5.2 Form . 6 5.3 Content 7 6 Personnel qualification . 7 7 Equipment and accessories . 7 7.1 Instrument . 7 7.2 Probes 7 7.2.1 General 7
17、 7.2.2 Contouring . 8 7.2.3 Nominal frequency . 8 7.2.4 Normal-beam probes . 8 7.2.5 Angle-beam probes . 8 7.2.6 Dual-element probes . 8 7.3 Calibration blocks . 8 7.4 Reference blocks . 8 7.5 Couplant 8 8 Routine calibration and checking . 9 9 Stage of manufacture . 9 10 Surface condition 9 10.1 Ge
18、neral 9 10.2 Surface finish related to quality class 9 10.3 As-forged surface condition 9 11 Test sensitivity 10 11.1 General . 10 11.2 Normal-beam probes 10 11.3 Angle-beam probes 10 11.4 Repeat testing 10 12 Scanning 10 12.1 General . 10 12.2 Complex forgings 11 12.3 Grid scanning coverage 11 12.4
19、 100 % scanning coverage 11 12.5 Scanning speed 11 13 Classification 14 13.1 Classification of indications . 14 13.2 Classification of discontinuities 16 DIN EN 10228-4:2016-10 EN 10228-4:2016 (E) 3 14 Recording levels and acceptance criteria 19 15 Sizing . 20 16 Test report 21 Annex A (informative)
20、 Maximum testable depth for corresponding beam path range for circumferential angle-beam scans . 22 Annex B (informative) Amplitude of indication in dB relative to % DAC 24 Annex C (informative) Significant technical changes to the version EN 10228-4:1999 . 25 DIN EN 10228-4:2016-10 EN 10228-4:2016
21、(E) 4 European foreword This document (EN 10228-4:2016) has been prepared by Technical Committee ECISS/TC 111 “Steel castings and forgings”, 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
22、or by endorsement, at the latest by December 2016 and conflicting national standards shall be withdrawn at the latest by December 2016. 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 responsib
23、le for identifying any or all such patent rights. This document supersedes EN 10228-4:1999. Annex C provides the significant technical changes to the previous version EN 10228-4:1999. EN 10228 consists of the following parts under the general title Non-destructive testing of steel forgings: Part 1:
24、Magnetic particle inspection; Part 2: Penetrant testing; Part 3: Ultrasonic testing of ferritic or martensitic steel forgings; Part 4: Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings. According to the CEN-CENELEC Internal Regulations, the national standards organiza
25、tions 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, Mal
26、ta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 10228-4:2016-10 EN 10228-4:2016 (E) 5 1 Scope This European Standard describes techniques for the manual, pulse-echo, ultrasonic testing of forgings manufactured
27、from austenitic and austenitic-ferritic stainless steels. Mechanized scanning techniques, such as immersion testing, may be used but should be agreed between the purchaser and supplier (see Clause 4). This part of EN 10228 applies to four types of forgings, classified according to their shape and me
28、thod of production. Types 1, 2 and 3 are essentially simple shapes. Type 4 covers complex shapes. This part of EN 10228 does not apply to: closed die forgings; turbine rotor and generator forgings. Ultrasonic testing of ferritic and martensitic steel forgings is the subject of Part 3 of this Europea
29、n Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includi
30、ng any amendments) applies. EN 1330-1, Non destructive testing - Terminology - Part 1: List of general terms EN 1330-4, Non-destructive testing - Terminology - Part 4: Terms used in ultrasonic testing EN 12668-1, Non-destructive testing - Characterization and verification of ultrasonic examination e
31、quipment - Part 1: Instruments EN 12668-2, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes EN 12668-3, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 3: Combined equipment EN ISO
32、2400, Non-destructive testing - Ultrasonic testing - Specification for calibration block No. 1 (ISO 2400) EN ISO 9712, Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712) EN ISO 16811, Non-destructive testing - Ultrasonic testing - Sensitivity and range setting (ISO
33、 16811) EN ISO 16827, Non-destructive testing - Ultrasonic testing - Characterization and sizing of discontinuities (ISO 16827) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1330-1 and EN 1330-4 apply. DIN EN 10228-4:2016-10 EN 10228-4:2016 (E) 6 4
34、Mandatory information 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 9); b) the volume(s) to be tested and whether gri
35、d scanning coverage or 100 % scanning coverage is required (see Clause 12); c) whether near surface testing is required (see 7.2.6); d) the quality class required, or the quality classes and the zones to which they apply (see Clause 14); e) the applicable recording/acceptance criteria if different f
36、rom those detailed in Table 5, Table 6 or Table 7; f) whether any special scanning coverage, equipment or couplant is required in addition to that detailed in Clauses 7 and 12; g) the scanning technique to be used if not manual (see Clause 1); h) the sizing techniques to be used for extended discont
37、inuities (see Clause 15); i) the technique(s) to be used for setting sensitivity (see Clause 11); j) whether the test shall be conducted in the presence of the purchaser or his representative; k) whether a written procedure shall be submitted for approval by the purchaser (see Clause 5); l) whether
38、testing by angle-beam probes is required (see 11.3); m) the remaining test requirements for complex forgings (type 4) (see 12.2). 5 Test procedure 5.1 General Ultrasonic testing shall be performed in accordance with a written test procedure. Where specified in the enquiry or order, the written test
39、procedure shall be submitted to the purchaser for approval prior to the test. 5.2 Form The written test procedure shall be one of the following: a) a product specification; b) a test procedure written specifically for the application; c) this part of EN 10228 may be used if it is accompanied by exam
40、ination details specific to the application. DIN EN 10228-4:2016-10 EN 10228-4:2016 (E) 7 5.3 Content The written test procedure shall contain the following details as minimum requirements: a) description of the forgings to be tested; b) reference documents; c) qualification of testing operator; d)
41、stage of manufacture at which the test is carried out; e) testing zones specified in terms of the applicable quality classes; f) preparation of scanning surfaces; g) couplant; h) description of the test equipment; i) calibration and checking of the test equipment; j) scanning plan; k) description an
42、d sequence of testing operations; l) recording levels; m) characterization of discontinuities; n) acceptance criteria; o) test report. 6 Personnel qualification Personnel shall be qualified in accordance with the requirements detailed in EN ISO 9712. 7 Equipment and accessories 7.1 Instrument The ul
43、trasonic instrument shall feature A-scan presentation and shall conform to EN 12668-1. 7.2 Probes 7.2.1 General Probes used for the initial detection of discontinuities shall conform to EN 12668-2. Where supplementary probes are used for purposes other than the initial detection of discontinuities,
44、they need not conform to EN 12668-2. DIN EN 10228-4:2016-10 EN 10228-4:2016 (E) 8 7.2.2 Contouring When required, probes shall be contoured in accordance with EN ISO 16811. 7.2.3 Nominal frequency Probes shall have a nominal frequency in the range from 0,5 MHz to 6 MHz. 7.2.4 Normal-beam probes Effe
45、ctive transducer diameter shall be in the range from 10 mm to 40 mm. 7.2.5 Angle-beam probes For the transverse waves, the angle-beam probes shall be in the range from 35 to 70. Effective transducer area shall be in the range from 20 mm2to 625 mm2. 7.2.6 Dual-element probes If near-surface testing i
46、s required, then dual-element probes shall be used. 7.3 Calibration blocks Calibration blocks shall conform to the requirements detailed in EN ISO 2400. 7.4 Reference blocks Reference blocks shall be used when sensitivity shall be established by the distance-amplitude curve (DAC) technique and/or wh
47、en discontinuities shall be sized in terms of amplitude relative to reference reflectors by the DAC technique. The surface condition of the reference block shall be representative of the surface condition of the object to be tested. Unless otherwise specified the reference block shall contain at lea
48、st three reflectors covering the entire depth range being tested. The reference block shall be manufactured from one of the following: a) an excess length of the object to be tested; b) a part of the same material and with the same heat treatment condition as the object to be tested; c) a part havin
49、g similar acoustic properties to the object to be tested. The choice of a test block with similar acoustic properties should be to the appreciation of a Level 2 qualified person. Reference blocks shall not be used for the distance-gain-size (DGS) technique other than for checking the accuracy of a particular DGS diagram. Reflector sizes different from those detailed in Tables 5 and 6 may be used as long as the test sensitivity is corrected accordingl
