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1、 Reference number ISO 17632:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 17632 First edition 2004-10-01 Welding consumables Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels Classification Produits consommables pour le soudage Fils-lec
2、trodes fourrs pour soudage larc avec ou sans gaz de protection des aciers non allis et des aciers grains fins Classification ISO 17632:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be
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5、 bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mech
6、anical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.is
7、o.org Published in Switzerland ii ISO 2004 All rights reserved ISO 17632:2004(E) ISO 2004 All rights reserved iii Contents Page Forewordiv Introduction v 1 Scope1 2 Normative references .1 3 Classification.2 4 Symbols and requirements4 4.1 Symbol for the product/process4 4.2 Symbol for tensile prope
8、rties of all-weld metal or welded joint 4 4.3 Symbol for impact properties of all-weld metal or welded joint 5 4.4 Symbol for chemical composition of all-weld metal .6 4.5 Symbol for type of electrode core or for the usability characteristics of the electrode9 4.6 Symbol for shielding gas .10 4.7 Sy
9、mbol for welding position12 4.8 Symbol for hydrogen content of deposited metal.12 4.9 Symbol for condition of postweld heat treatment of all-weld metal13 5 Mechanical tests .13 5.1 Multi-run technique.13 5.2 Single-run technique 15 6 Chemical analysis.15 7 Fillet weld test .15 8 Retests .16 9 Techni
10、cal delivery conditions16 10 Examples of designation17 Annex A (informative) Classification systems.19 Annex B (informative) Description of types of electrode core in the classification system based upon yield strength and average impact energy of 47 J.22 Annex C (informative) Description of types o
11、f usability characteristics in the classification system based upon tensile strength and average impact energy of 27 J24 Annex D (informative) Notes on hydrogen content.27 -,-,- ISO 17632:2004(E) iv ISO 2004 All rights reserved Foreword ISO (the International Organization for Standardization) is a w
12、orldwide 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 has the right to be represented
13、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. International Standards are drafte
14、d 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. Publication as an International Stand
15、ard 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 rights. ISO 17632 was prepared by
16、 Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 3, Welding consumables. -,-,- ISO 17632:2004(E) ISO 2004 All rights reserved v Introduction This International Standard provides a classification system for tubular cored electrodes in terms of tensile properties, impact p
17、roperties, chemical composition of the all-weld metal, type of electrode core, shielding gas and welding position. The ratio of yield to tensile strength of weld metal is generally higher than that of parent metal. Users should note that matching weld metal yield strength to parent metal yield stren
18、gth will not necessarily ensure that the weld metal tensile strength matches that of the parent metal. Where the application requires matching tensile strength, therefore, selection of the consumable should be made by reference to column 3 of Table 1A or Table 1B. It should be noted that the mechani
19、cal properties of all-weld metal test specimens used to classify the tubular cored electrodes will vary from those obtained in production joints because of differences in welding procedure such as electrode size, width of weave, welding position and parent metal composition. The classification accor
20、ding to system A is mainly based on EN 758:1997, Welding consumables Tubular cored electrodes for metal arc welding with and without a gas shield of non alloy and fine grain steels Classification. The classification according to system B is mainly based upon standards used around the Pacific Rim. Re
21、quests for official interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/SC 3 via your national standards body, a complete listing of which can be found at www.iso.org. -,-,- INTERNATIONAL STANDARD ISO 17632:2004(E) ISO 2004 All rights reser
22、ved 1 Welding consumables Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels Classification 1 Scope This International Standard specifies requirements for classification of tubular cored electrodes with or without a gas shield for meta
23、l arc welding of non-alloy and fine grain steels in the as-welded condition or in the post- weld heat-treated condition with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One tubular cored electrode can be tested and classified with different shielding gas
24、es, if any. This International Standard is a combined specification providing classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-we
25、ld metal. 1) Paragraphs and tables which carry the suffix letter “A” are applicable only to tubular cored electrodes classified to the system based upon the yield strength and the average impact energy of 47 J of all- weld metal in accordance with this International Standard. 2) Paragraphs and table
26、s which carry the suffix letter “B” are applicable only to tubular cored electrodes classified to the system based upon the tensile strength and the average impact energy of 27 J of all- weld metal in accordance with this International Standard. 3) Paragraphs and tables which have neither the suffix
27、 letter “A” nor the suffix letter “B” are applicable to all tubular cored electrodes classified in accordance with this International Standard. It is recognized that the operating characteristics of tubular cored electrodes can be modified by the use of pulsed current, but for the purposes of this I
28、nternational Standard, pulsed current is not permitted for determining the electrode classification. 2 Normative 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 lat
29、est edition of the referenced document (including any amendments) applies. ISO 31-0:1992, Quantities and units Part 0: General principles ISO 544, Welding consumables Technical delivery conditions for welding filler materials Type of product, dimensions, tolerances and marking ISO 3690, Welding and
30、allied processes Determination of hydrogen content in ferritic steel arc weld metal ISO 6847, Welding consumables Deposition of a weld metal pad for chemical analysis ISO 6947:1990, Welds Working positions Definitions of angles of slope and rotation ISO 13916, Welding Guidance on the measurement of
31、preheating temperature, interpass temperature and preheat maintenance temperature -,-,- ISO 17632:2004(E) 2 ISO 2004 All rights reserved ISO 14175:1997, Welding Consumables Shielding gases for arc welding and cutting ISO 14344, Welding and allied processes Flux and gas shielded electrical welding pr
32、ocesses Procurement guidelines for consumables ISO 15792-1:2000, Welding Consumables Test methods Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys ISO 15792-2:2000, Welding Consumables Test methods Part 2: Preparation of single-run and two-run technique test
33、specimens in steel ISO 15792-3, Welding Consumables Test methods Part 3: Classification testing of positional capacity and root penetration of welding consumables in a fillet weld 3 Classification Classification designations are based upon two approaches to indicate the tensile properties and the im
34、pact properties of the all-weld metal obtained with a given electrode. The two designation approaches include additional designators for some other classification requirements, but not all, as will be clear from the following. In most cases, a given commercial product can be classified in both syste
35、ms. Then either or both classification designations can be used for the product. See Annex A. The classification includes all-weld metal properties obtained with a tubular cored electrode and appropriate shielding gas combination as given below. With the exception of the symbol for welding position
36、which is based on ISO 15792-3, the classification of gas shielded tubular cored electrodes is based on the 1,2 mm electrode size or, if this size is not manufactured, the next larger diameter manufactured. The classification of self-shielded tubular cored electrodes is based on the 2,4 mm diameter o
37、r the largest diameter manufactured if less than 2,4 mm. 3.1A Classification by yield strength and 47 J impact energy 3.1B Classification by tensile strength and 27 J impact energy The classification is divided into eight parts: The classification is divided into nine parts: 1) the first part (T) in
38、dicates a tubular cored electrode; 1) the first part (T) indicates a tubular cored electrode; 2) the second part gives a symbol indicating the strength and elongation of all-weld metal for multi-run technique or the strength of the parent material used in classification for the single-run technique
39、(see Table 1A or Table 2A); 2) the second part gives a symbol indicating the strength and elongation of all-weld metal for multi-run technique or the strength of the parent material used in classification for the single-run technique (see Table 1B or Table 2B); 3) the third part gives a symbol indic
40、ating the impact properties of all-weld metal or welded joint (see Table 3); 3) the third part gives a symbol indicating the impact properties of all-weld metal (see Table 3). The symbol “U”, added as an optional supplemental designator at or near the end of the complete tubular cored electrode desi
41、gnation, indicates that the deposit meets an average optional requirement of 47 J at the designated Charpy test temperature; 4) the fourth part gives a symbol indicating the chemical composition of all-weld metal (see Table 4A); 4) the fourth part gives a symbol indicating the usability characterist
42、ics of the electrode (see Table 5B); 5) the fifth part gives a symbol indicating the type of electrode core (see Table 5A); 5) the fifth part gives a symbol indicating the welding position (see Table 6B); -,-,- ISO 17632:2004(E) ISO 2004 All rights reserved 3 6) the sixth part gives a symbol indicat
43、ing the shielding gas (see 4.6 and 4.6A); 6) the sixth part gives a symbol indicating the shielding gas (see 4.6 and 4.6B). The letter “S” added to this designator indicates that the electrode is classified for single-pass welding; 7) the seventh part gives a symbol indicating the welding position (
44、see Table 6A); 7) the seventh part gives a symbol indicating whether the classification tests were conducted in the as-welded (A) or post-weld heat-treated condition (P). If the electrode has been classified in both conditions, the symbol AP shall be added to the classification. This designator is o
45、mitted in the classification for single-pass welding electrodes as these are tested only in the as-welded condition; 8) the eighth part gives a symbol indicating the hydrogen content of deposited metal (see Table 7). 8) the eighth part gives a symbol indicating the chemical composition of all-weld m
46、etal (see Table 4B). The symbol is omitted for weld deposits conforming to the “No symbol” in Table 4B; 9) the ninth part gives a symbol indicating the hydrogen content of deposited metal (see Table 7). Electrodes may be classified under any number of classifications for either or both the as-welded
47、 and post-weld heat-treated condition. In both systems, the electrode classification shall include all compulsory sections and may include optional sections as outlined below. 3.2A Compulsory and optional sections in the classification by yield strength and 47 J impact energy 3.2B Compulsory and opt
48、ional sections in the classification by tensile strength and 27 J impact energy a) Compulsory section This section includes the symbols for type of product, strength and elongation, impact properties, chemical composition, type of electrode core and shielding gas, i.e. the symbols defined in 4.1, 4.2.1A, 4.2.2, 4.3A, 4.4, 4.5A and 4.6. a) Compulsory section This section includes the symbols for type of product, strength and elongation in the as-welded condition or post-weld heat-treated condition, welding positions for which the electrode is suitable, usability character