1、BRITISH STANDARDBS EN ISO 636:2008Welding consumables Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels ClassificationICS 25.160.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51
2、g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 636:2008This British Standard was published unde
3、r the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008ISBN 978 0 580 59120 4National forewordThis British Standard is the UK implementation of EN ISO 636:2008. It is identical to ISO 636:2004. It supersedes BS EN 1668:1997 which is withdrawn.The UK participation in i
4、ts preparation was entrusted to Technical Committee WEE/39, Welding consumables.A list of organizations represented on this committee 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 cor
5、rect application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted wi
6、thout license from IHS-,-,-EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 636May 2008ICS 25.160.20 Supersedes EN 1668:1997 English VersionWelding consumables - Rods, wires and deposits for tungsteninert gas welding of non-alloy and fine-grain steels -Classification (ISO 636:2004)Produits cons
7、ommables pour le soudage - Baguettes et filspour dpts par soudage TIG des aciers non allis et desaciers grains fins - Classification (ISO 636:2004)Schweizustze - Stbe, Drhte und Schweigut zumWolfram-Inertgasschweien von unlegierten Sthlen undFeinkornsthlen - Einteilung (ISO 636:2004)This European St
8、andard was approved by CEN on 5 April 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning su
9、ch nationalstandards 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 translationunder the responsibility of a CEN member into its own language
10、and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
11、g, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of e
12、xploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 636:2008: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Foreword The text o
13、f ISO 636:2004 has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 636:2008 by Technical Committee CEN/TC 121 “Welding” the secretariat of which is held by DIN. This European S
14、tandard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2008, and conflicting national standards shall be withdrawn at the latest by November 2008. Attention is drawn to the possibility that some of the element
15、s 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 1668:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun
16、tries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spa
17、in, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 636:2004 has been approved by CEN as a EN ISO 636:2008 without any modification. BS EN ISO 636:2008iiCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction
18、 or networking permitted without license from IHS-,-,-iiiContents Page Introduction v 1 Scope 1 2 Normative references . 1 3 Classification. 2 4 Symbols and requirements 2 4.1 Symbol for the product/process 2 4.2 Symbol for strength and elongation of all-weld metal 2 4.3 Symbol for impact properties
19、 of all-weld metal. 3 4.4 Symbol for the chemical composition of rods or wires 4 5 Mechanical tests . 8 5.1 Preheating and interpass temperatures . 8 5.2 Welding conditions and pass sequence. 9 5.3 PWHT condition 9 6 Chemical analysis . 9 7 Retests . 9 8 Technical delivery conditions 10 9 Designatio
20、n 10 BS EN ISO 636:2008Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ivIntroduction This International Standard provides a classification for the designation of rods and wires
21、in terms of their chemical composition and, where required, in terms of the yield strength, tensile strength and elongation of the all-weld metal. 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 stre
22、ngth to parent metal yield strength will not necessarily ensure that the weld metal tensile strength matches that of the parent material. Where the application requires matching tensile strengths, selection of consumable should be made by reference to column 3 of Table 1A or Table 1B. It should be n
23、oted that the mechanical properties of all-weld metal test specimens used to classify the rods and wires vary from those obtained in production joints because of differences in welding procedure such as diameter, width of weave, welding position and material composition. The classification according
24、 to system A is mainly based on EN 1668:1997, Welding consumables Rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels Classification. The classification according to system B is mainly based upon standards used around the Pacific Rim. Requests for official inte
25、rpretations 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. BS EN ISO 636:2008Copyright European Committee for Standardization Provided by IHS under licens
26、e with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1Welding consumables Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels Classification 1 Scope This International Standard specifies requirements for classification of
27、 rods and wires in the as-welded condition and in the post-weld heat-treated condition for tungsten inert gas welding of non-alloy and fine grain steels with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. This International Standard is a combined specificat
28、ion 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-weld metal. 1) Paragraphs and tables which carry the suffix letter
29、 “A” are applicable only to rods and wires 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 tables which carry the suffix letter “B” are applicable only to rods and wires c
30、lassified 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 letter “A” nor the suffix letter “B” are applicable to all rods and wires classified
31、in accordance with this International Standard. 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 edition of the referenced document (including any
32、 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 markings ISO 13916, Welding Guidance on the measurement of preheating temperature,
33、interpass temperature and preheat maintenance temperature ISO 14175, Welding consumables Shielding gases for arc welding and cutting ISO 14344, Welding and allied processes Flux and gas shielded electrical welding processes Procurement guidelines for consumables ISO 15792-1:2000, Welding consumables
34、 Testing methods Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys BS EN ISO 636:2008Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 3 C
35、lassification Classification designations are based upon two approaches to indicate the tensile properties and the impact properties of the all-weld metal obtained with rods or wires. The two designation approaches include additional designators for some other classification requirements, but not al
36、l, as will be clear from the following sections. In most cases, a given commercial product can be classified to the classification requirements in both systems. Then either or both classification designations can be used for the product. Rods or wires shall be classified according to their chemical
37、composition in accordance with Table 3A or Table 3B. 3A Classification by yield strength and 47 J impact energy The classification is divided into four parts: 1) the first part gives a symbol indicating the product/process to be identified; 2) the second part gives a symbol indicating the strength a
38、nd elongation of the all-weld metal (see Table 1A); 3) the third part gives a symbol indicating the impact properties of all-weld metal (see Table 2); 4) the fourth part gives a symbol indicating the chemical composition of the rods or wires used (see Table 3A). 3B Classification by tensile strength
39、 and 27 J impact energy The classification is divided into four parts: 1) the first part gives a symbol indicating the product/process to be identified; 2) the second part gives a symbol indicating the strength and elongation of the all-weld metal in either the as-welded or post-weld heat-treated co
40、ndition (see Table 1B); 3) the third part gives a symbol indicating the impact properties of all-weld metal in the same condition as specified for the tensile strength (see Table 2). The letter “U” after this designator indicates that the deposit meets an average optional requirement of 47 J at the
41、designated Charpy test temperature; 4) the fourth part gives a symbol indicating the chemical composition of the rods or wires used (see Table 3B). 4 Symbols and requirements 4.1 Symbol for the product/process The symbol of weld deposit by the tungsten inert gas welding process shall be the letter “
42、W” placed at the beginning of the designation. The symbol of rods or wires for the tungsten inert gas welding shall be the letter “W” placed at the beginning of the rod or wire designation. 4.2 Symbol for strength and elongation of all-weld metal4.2A Classification by yield strength and 47 J impact
43、energy The symbol in Table 1A indicates yield strength, tensile strength and elongation of the all-weld metal in the as-welded condition determined in accordance with Clause 6. 4.2B Classification by tensile strength and 27 J impact energy The symbol in Table 1B indicates yield strength, tensile str
44、ength and elongation of the all-weld metal in the as-welded condition or in the post-weld heat-treated condition determined in accordance with Clause 6. BS EN ISO 636:2008Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networkin
45、g permitted without license from IHS-,-,-3Table 1A Symbol for strength and elongation of all-weld metal Minimum yield strengthaTensile strength Minimum elongationbSymbol MPa MPa % 35 38 42 46 50 355 380 420 460 500 440 to 570 470 to 600 500 to 640 530 to 680 560 to 720 22 20 20 20 18 aFor yield stre
46、ngth the lower yield (ReL) is used when yielding occurs, otherwise the 0,2 % proof strength (Rp0,2) is used. bGauge length is equal to five times the test specimen diameter. Table 1B Symbol for strength and elongation of all-weld metal Minimum yield strengthbTensile strength Minimum elongationcSymbo
47、laMPa MPa % 43X 49X 55X 57X 330 390 460 490 430 to 600 490 to 670 550 to 740 570 to 770 20 18 17 17 aX is “A” or “P”. Where “A” indicates testing in the as-welded condition and “P” indicates testing in the post-weld heat-treated condition. bFor yield strength the lower yield (ReL) is used when yield
48、ing occurs, otherwise the 0,2 % proof strength (Rp0,2) is used. cGauge length is equal to five times the test specimen diameter. 4.3 Symbol for impact properties of all-weld metal 4.3A Classification by yield strength and 47 J impact energy The symbol in Table 2 indicates the temperature at which an
49、 impact energy of 47 J is achieved under the conditions given in Clause 6. Three test specimens shall be tested. Only one individual value may be lower than 47 J but not lower than 32 J. 4.3B Classification by tensile strength and 27 J impact energy The symbol in Table 2 indicates the temperature at which a
