1、BS EN ISO17672:2010ICS 25.160.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDBrazing Filler metals(ISO 17672:2010)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted with
2、out license from IHS-,-,-This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 June2010 BSI 2010ISBN 978 0 580 58304 9Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 17672:2010National forewordThis British Standard is the UK imp
3、lementation of EN ISO 17672:2010.It supersedes BS EN 1044:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/19, Brazing and braze welding.A list of organizations represented on this committee can be obtained onrequest to its secretary.This public
4、ation does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Copyright European Committee for Standardization Provided by IHS under license with CENNot fo
5、r ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17672 June 2010 ICS 25.160.50 Supersedes EN 1044:1999English Version Brazing - Filler metals (ISO 17672:2010) Brasage fort - Mtaux dapport (ISO 17672:2010) Hartlten -
6、 Lote (ISO 17672:2010) This European Standard was approved by CEN on 12 May 2010. 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 any alteration. Up-to-date lists and
7、bibliographical references concerning such national standards may be obtained on application to the CEN 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 under the responsibi
8、lity of a CEN member into its own language and notified to the CEN 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary
9、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre:
10、Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17672:2010: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or network
11、ing permitted without license from IHS-,-,-BS EN ISO 17672:2010EN ISO 17672:2010 (E) 3 Foreword This document (EN ISO 17672:2010) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes“ in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of which
12、is held by DIN. 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 December 2010, and conflicting national standards shall be withdrawn at the latest by December 2010. Attention is drawn to the possi
13、bility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1044:1999. According to the CEN/CENELEC Internal Regulations, the national standards orga
14、nizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Po
15、rtugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 17672:2010 has been approved by CEN as a EN ISO 17672:2010 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot f
16、or ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 17672:2010ISO 17672:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Composition.1 4 Special vacuum requirement .2 5 Chemical analysis .2 6 Designation 3 7 Tech
17、nical delivery conditions 3 7.1 Types of product .3 7.2 Dimensions 3 7.3 Condition5 7.4 Marking.5 7.5 Packaging.5 7.6 Product certificates .5 8 Metal hazards.5 Annex A (normative) Codification.16 Bibliography22 Copyright European Committee for Standardization Provided by IHS under license with CENNo
18、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 17672:2010ISO 17672:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
19、 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 on that committee. International organizations, governmental and non-governmen
20、tal, 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 drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The ma
21、in 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 Standard requires approval by at least 75 % of the member bodies casting a vote. At
22、tention 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 17672 was prepared by Technical Committee ISO/TC 44, Welding and allied processes. Requests for off
23、icial interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/WG 3 via your national standards body, a complete listing which can be found at http:/www.iso.org/. Copyright European Committee for Standardization Provided by IHS under license wit
24、h CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 17672:2010INTERNATIONAL STANDARD ISO 17672:2010(E) ISO 2010 All rights reserved 1Brazing Filler metals 1 Scope This International Standard specifies the compositional ranges of a series of filler metals
25、 used for brazing. The filler metals are divided into seven classes, related to their composition, but not necessarily to the major element present. NOTE 1 For the major element(s) present, see Annex A. In the case of composite products, such as flux-coated rods, pastes or plastics tapes, this Inter
26、national Standard covers only the filler metal that forms part of such products. The melting temperatures given in the tables are only approximate, as they necessarily vary within the compositional range of the filler metal. Therefore, they are given only for information. Technical delivery conditio
27、ns are given for brazing filler metals and products containing brazing filler metals with other constituents such as flux and/or binders. NOTE 2 For some applications, e.g. precious metal jewellery, aerospace and dental, filler metals other than those included in this International Standard are ofte
28、n used and these are covered by other International Standards to which reference can be made. 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 latest edi
29、tion of the referenced document (including any amendments) applies. ISO 3677:1992, Filler metal for soft soldering, brazing and braze welding Designation ISO 80000-1:2009, Quantities and units Part 1: General 3 Composition The filler metal shall have a composition in accordance with Tables 5 to 13 f
30、or the particular type, except as modified for special vacuum requirements (see Clause 4 and Table 1). For the purposes of determining compliance with composition limits, any value obtained from the analysis shall be rounded to the same number of decimal places as used in this International Standard
31、 in expressing the specified limit. The following rules shall be used for rounding. a) When the figure immediately after the last figure to be retained is less than five, then the last figure to be retained shall be kept unchanged. b) When the figure immediately after the last figure to be retained
32、is either 1) greater than five, or 2) equal to five and followed by at least one figure other than zero, the last figure to be retained shall be increased by one. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permit
33、ted without license from IHS-,-,-BS EN ISO 17672:2010ISO 17672:2010(E) 2 ISO 2010 All rights reservedc) When the figure immediately after the last figure to be retained is equal to five, and followed by zeros only, then the last figure to be retained shall be left unchanged if even, and increased by
34、 one if odd. For the purposes of determining compliance with the requirements of this International Standard, the actual test values obtained shall be subjected to the rounding-off instructions given in ISO 80000-1:2009, Annex B. NOTE The chemical analysis is of the bulk material, but the material c
35、an be composed of discrete powders with different individual compositions or multiple layers of roll-clad foils where each layer can have a different individual composition. 4 Special vacuum requirement In a few instances, which are most likely to apply to Ag 272, Pd 287, Pd 387, Pd 388, Pd 481, Pd
36、483, Pd 484, Pd 587, Pd 647 and Au 295, Au 375, Au 625, Au 752, Au 801 and Au 827, lower impurity limits can be required for brazing in vacuum or service in vacuum and these limits shall be as given in Table 1. Filler metals complying with Table 1 shall have the letter V added as a suffix to the cod
37、ification plus the digit 1 or 2 to indicate the grade. NOTE Grade 1 is intended for the most demanding duties, Grade 2 for less demanding. Table 1 Impurity limits for special vacuum requirements Limit (% by mass max.) Impurity Grade 1 Grade 2 Ca0,005 0,005 Cd 0,001 0,002 P 0,002 0,002bPb 0,002 0,002
38、 Zn 0,001 0,002 Mnc0,001 0,002 Inc0,002 0,003 All other elements where vapour pressure at 500 C is 1,3 105Pad0,001 0,002 aFor filler metal Ag 272 (see Table 6), lower levels may be available by agreement between the purchaser and the supplier. bFor filler metal Ag 272, 0,02 % maximum. cExcept where
39、otherwise specified in Tables 5 to 13. dExamples of such elements are Ca, Cs, K, Li, Mg, Na, Rb, S, Sb, Se, Sr, Te and Tl. For such elements (including Cd, Pb and Zn), the total is limited to 0,010 %. 5 Chemical analysis Chemical analyses shall be carried out by any suitable method, but it should be
40、 noted that in the case of many brazing alloys, the use of reference standards may be essential, as agreed between the purchaser and the supplier. Analysis is only required to be carried out routinely for those elements for which specific limits are shown. If, however, the presence of other elements
41、 is suspected or in the course of routine analysis is indicated to be in excess of the limits laid down for unnamed elements, or would bring the total of impurities above the specified limit, further analyses shall be carried out for such elements. Copyright European Committee for Standardization Pr
42、ovided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 17672:2010ISO 17672:2010(E) ISO 2010 All rights reserved 36 Designation The filler metal shall be designated by the description “filler metal”, the number of this Internat
43、ional Standard, i.e. ISO 17672, and a code. Details of the two options for the code system used are given in Annex A. As an example, the designations of an aluminium filler metal containing 11 % to 13 % Si, in accordance with this International Standard, can be made in one of the following ways: EXA
44、MPLE 1 Filler metal ISO 17672-Al 112 where “Filler metal” is the description; “ISO 17672” is the number of this International Standard; “Al 112” is the short code given in Tables 5 to 13. EXAMPLE 2 Filler metal ISO 17672-B-Al88Si-575/585 where “Filler metal” is the description; “ISO 17672” is the nu
45、mber of this International Standard; “B” denotes brazing; “Al88Si-575/585” is the code in accordance with ISO 3677. 7 Technical delivery conditions 7.1 Types of product The form of the material shall be agreed between the purchaser and the manufacturer/supplier at the time of placing the order. NOTE
46、 Brazing filler metals are available as rod, wire, foil (or preforms made from them) or powder, although not all filler metals are necessarily available in every type of product. They are also available as a constituent of brazing pastes or, particularly in the case of aluminium brazing filler metal
47、s, clad onto one or both sides of an alloy sheet. Rods can be completely or partially coated with flux. 7.2 Dimensions 7.2.1 General Dimensions and tolerances for foils (see 7.2.2), rods (see 7.2.3) and, to a lesser extent, wires (see 7.2.4) are defined. For other forms and dimensions not listed in
48、the respective tables, the purchaser and the manufacturer/supplier shall agree on the dimensions and tolerances at the time of placing the order. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 17672:2010ISO 17672:2010(E) 4 ISO 2010 All rights reserved7.2.2 Foils The tolerances for thickness, width and camber are given in Tables 2, 3 and 4. Table 2 Thickness tolerance for foils Thickness nominal size mm Limits of thickness related to width (nominal
