1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12536:2000 The Euro
2、pean Standard EN 12536:2000 has the status of a British Standard ICS 25.160.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Welding consumables Rods for gas welding of non alloy and creep-resisting steels ClassificationThis British Standard, having been prepared under the d
3、irection of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2000 BSI 06-2000 ISBN 0 580 34180 1 BS EN 12536:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the o
4、fficial English language version of EN 12536:2000. It partially supersedes BS 1453:1972. The UK participation in its preparation was entrusted to Technical Committee WEE/39, Welding consumables, which has the responsibility to: aid enquirers to understand the text; present to the responsible Europea
5、n committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cros
6、s-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electroni
7、c Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This docume
8、nt comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.(8523($167$1$5 1250(8523e(11( (8523b,6 2) The second part gives a symbol indicati
9、ng the chemical composition of the rod. 4 Symbols and requirements 4.1 Symbol for the product/process The symbol for the rod used in the gas welding process shall be the letter O. 4.2 Symbol for the chemical composition of rods The symbol in Table 1 indicates the chemical composition of the rod, det
10、ermined under conditions given in clause 5.3DJH (1 %6, Table 1 - Symbol for chemical composition of rods, percentage by mass Symbol Chemical composition in % 1)2)3) CS iM nPSM oN iC r O Z Any other agreed composition O I 0,03 to 0,12 0,02 to 0,20 0,35 to 0,65 0,030 0,025 - - - O II 0,03 to 0,20 0,05
11、 to 0,25 0,50 to 1,20 0,025 0,025 - - - O III 0,05 to 0,15 0,05 to 0,25 0,95 to 1,25 0,020 0,020 - 0,35 to 0,80 - O IV 0,08 to 0,15 0,10 to 0,25 0,90 to 1,20 0,020 0,020 0,45 to 0,65 - - O V 0,10 to 0,15 0,10 to 0,25 0,80 to 1,20 0,020 0,020 0,45 to 0,65 - 0,80 to 1,20 O VI 0,03 to 0,10 0,10 to 0,25
12、 0,40 to 0,70 0,020 0,020 0,90 to 1,20 - 2,00 to 2,20 1)If not specified: Mo 0,3 %, Ni 0,3 %, Cr 0,15 %, Cu 0,35 % and V 0,03 %. Residual copper content in the steel including any coating shall not exceed 0,35 weight percent. 2)Single values shown in the table are maximum values. 3)The results shall
13、 be rounded to the same number of significant figures as in the specified value using the rules in accordance with annex B, Rule A of ISO 31-0:1992.3DJH (1 %6, 5 Chemical analysis Chemical analysis is performed on specimens of the rod. Any analytical technique can be used, but in case of dispute ref
14、erence shall be made to established published methods. NOTE: See annex B. 6 Technical delivery conditions Technical delivery conditions shall meet the requirements in EN 759. 7 Designation A rod for gas welding has a chemical composition within the limits for the alloy symbol O III of Table 1. The d
15、esignation will be: Rod EN 12536 - O III where, EN 12536 = standard number; O = rod/gas welding (see 4.1); III = chemical composition of rod (see Table 1).3DJH (1 %6, Annex A (informative) Welding behaviour Rods with symbol I to VI have different welding behaviour. In Table A.1 typical welding behav
16、iour of different rods is listed. Table A.1 - Welding behaviour Rod symbol Behaviour O I O II O III O IV O V O VI fluidity highly fluid less fluid viscous spatter much less no sensitive to porosity yes yes no3DJH (1 %6, Bibliography Handbuch fr Eisenhttenlaboratorium, VdEh, Dsseldorf. BS 62003, Samp
17、ling of iron, steel and other ferrous metals Part 3: Methods of analysis. CEN/CR 10261 ECISS information circular 11 Iron and Steel Review of available methods of chemical analysis.blankBS EN 12536:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | |
18、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing Briti
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