BS-ISO-4992-2-2006.pdf
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1、BRITISH STANDARD BS ISO 4992-2:2006 Steel castings Ultrasonic examination Part 2: Steel castings for highly stressed components ICS 77.040.20; 77.140.80 ? Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS ISO
2、4992-2:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006 ISBN 0 580 49669 4 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 4992-2:2006. The UK participation in its
3、 preparation was entrusted to Technical Committee ISE/6, Steel castings. A list of organizations represented on ISE/6 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicatio
4、n. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference number IS
5、O 4992-2:2006(E) INTERNATIONAL STANDARD ISO 4992-2 First edition 2006-02-15 Steel castings Ultrasonic examination Part 2: Steel castings for highly stressed components Pices moules en acier Contrle aux ultrasons Partie 2: Pices moules en acier pour composants fortement sollicits BS ISO 4992-2:2006 L
6、icensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Contents Page Fore
7、word iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Requirements 2 4.1 Order information . 2 4.2 Extent of examination. 3 4.3 Maximum permissible size of discontinuities . 3 4.4 Personnel qualification 3 4.5 Wall-section zones 4 4.6 Severity levels. 4 5 Examination. 4 5.1 Prin
8、ciples. 4 5.2 Material 4 5.3 Equipment, coupling medium, sensitivity and resolution of detection 5 5.4 Preparation of casting surfaces for testing . 6 5.5 Examination procedure 6 5.6 Examination report. 9 Annex A (normative) Resolution of detection of the instrument/probe combination. 16 Annex B (in
9、formative) Sound-beam diameters . 17 Annex C (informative) Types of indications 19 Bibliography. 31 BS ISO 4992-2:2006 Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organiza
10、tion 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 technical committees. Each member body interested in a subject for which a technical committee has been established
11、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 closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. In
12、ternational 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 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publi
13、cation 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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent r
14、ights. ISO 4992-2 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 11, Steel castings. ISO 4992 consists of the following parts, under the general title Steel castings Ultrasonic examination: Part 1: Steel castings for general purposes Part 2: Steel castings for highly stressed
15、conponents BS ISO 4992-2:2006 Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1 Steel castings Ultrasonic examination Part 2: Steel castings for highly stressed components 1 Scope This part of ISO 4992 specifie
16、s the requirements for the ultrasonic examination of steel castings (with ferritic structure) for highly stressed components, and the methods for determining internal discontinuities by the pulse echo technique. This part of ISO 4992 applies to the ultrasonic examination of steel castings which have
17、 usually received a grain-refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements apply with respect to the test procedure and recording levels. This part of ISO 4992 does not apply to austenitic steels and joint welds. 2 N
18、ormative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5577, Non-destructive tes
19、ting Ultrasonic inspection Vocabulary ISO 7963, Non-destructive testing Ultrasonic testing Specification for calibration block No. 2 EN 583-1, Non-destructive testing Ultrasonic examination Part 1: General principles EN 583-2, Non-destructive testing Ultrasonic examination Part 2: Sensitivity and ra
20、nge setting EN 583-5,2005, 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 examination Specification for calibrat
21、ion block No. 1 EN 12668-1, Non-destructive testing Characterization and verification of ultrasonic examination equipment 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 C
22、haracterization and verification of ultrasonic examination equipment Part 3: Combined equipment BS ISO 4992-2:2006 Licensed Copy: London South Bank University, London South Bank University, Wed Jan 10 01:41:06 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 2 3 Terms and definitions For the purposes of t
23、his document, the terms and definitions given in ISO 5577, EN 583-1, EN 583-2, EN 583-5 and EN 1330-4, and the following, apply. 3.1 reference discontinuity echo size smallest indication to be recorded during the assessment phase of an ultrasonic examination, usually expressed as an equivalent flat-
24、bottomed hole diameter 3.2 point discontinuity discontinuity, the dimensions of which are smaller than or equal to the sound-beam diameter NOTE Dimensions in this part of ISO 4992 relate to length, width and/or dimension in the through-wall direction. 3.3 complex discontinuity discontinuity, the dim
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