SANS 3581-2008 Welding consumables - Covered electrodes for manual metal arc welding of stainless and heat-resisting steels - Classification《焊接消耗品 不锈钢及耐热钢手工金属电弧焊接用涂敷焊条 分类》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21507-1 SANS 3581:2008Edition 2ISO 3581:2003Edition 2SOUTH AFRICAN NATIONAL STANDARD Welding consumables Covered electrodes for manual met

4、al arc welding of stainless and heat-resisting steels Classification This national standard is the identical implementation of ISO 3581:2003 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Pri

5、vate Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 3581:2008 Edition 2 ISO 3581:2003 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 44, Welding and allied processes,

6、in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in October 2008. This SANS document supersedes SABS ISO 3581:1976 (edition 1). Reference numberISO 3581:2003(E)ISO 2003INTERNATIONAL STANDARD ISO3581Sec

7、ond edition2003-02-01Welding consumables Covered electrodes for manual metal arc welding of stainless and heat-resisting steels Classification Produits consommables pour le soudage lectrodes enrobes pour le soudage manuel larc des aciers inoxydables et rsistant aux tempratures leves Classification S

8、ANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(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 edited

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13、ublished in Switzerland ii ISO 2003 All rights reservedSANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(E) ISO 2003 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references .

14、1 3 Classification. 2 4 Symbols and requirements 5 4.1 Symbol for the product/process 5 4.2 Symbol for the chemical composition of all-weld metal. 5 4.3 Symbol for type of electrode covering . 5 4.4 Symbol for effective electrode efficiency and type of current . 13 4.5 Symbol for welding position 13

15、 5 Chemical analysis. 14 6 Mechanical property tests 14 6.1 General. 14 6.2 Preheat and interpass temperatures. 14 6.3 Pass sequence 15 7 Fillet weld test . 15 8 Retests . 16 9 Technical delivery conditions 17 10 Examples of designation 17 Annex A (informative) Types of covering. 18 Annex B (informa

16、tive) Considerations on weld metal ferrite contents . 19 Bibliography . 22 SANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(E) iv ISO 2003 All rights reservedForeword ISO (the International Organization for Standard

17、ization) 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 has the right to

18、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. International Stand

19、ards 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. Publication as an Inte

20、rnational 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 rights. ISO 3581 w

21、as prepared in collaboration with the International Institute of Welding which has been approved by the ISO Council as an international standardizing body in the field of welding. This second edition cancels and replaces the first edition (ISO 3581:1976), which has been technically revised. SANS 358

22、1:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(E) ISO 2003 All rights reserved vIntroduction This International Standard provides a classification system for stainless steel, covered welding electrodes in terms of chemica

23、l composition of deposited weld metal and type of electrode covering. Other properties of the electrodes are specified by reference to tables. This International Standard has been prepared by the International Institute of Welding, Commission II “Arc Welding”, Subcommission II-E. It recognizes that

24、there are two somewhat different approaches in the global market, for classifying a given stainless steel, covered electrode, and allows for either or both to be used to suit a particular need. Application of either (or both) type(s) of classification designation identifies a product as classified a

25、ccording to this International Standard. It should be noted that the two systems are not exactly equivalent, therefore each system must be used independent of the other, without combining designators in any way. The classification according to ISO 3581, system A, is mainly based upon EN 1600; the cl

26、assification according to ISO 3581, system B, is mainly based upon standards used around the Pacific Rim. SANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 3581:2008This s tandard may only be used and printed by approved subs

27、cription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 3581:2003(E) ISO 2003 All rights reserved 1Welding consumables Covered electrodes for manual metal arc welding of stainless and heat-resisting steels Classification 1 Scope This International Standard specifies requirements for

28、 classification of covered electrodes, based on the all-weld metal chemical composition, the type of electrode covering and other electrode properties, and the all-weld metal mechanical properties, in the as-welded or heat-treated conditions, for manual metal arc welding of stainless and heat-resist

29、ing steels. This International Standard is a combined standard providing for classification utilizing a system based upon classification according to nominal composition, or utilizing a system based upon classification according to alloy type. a) Paragraphs and tables which carry the label “classifi

30、cation according to nominal composition” or “ISO 3581-A” are applicable only to products classified to that system. b) Paragraphs and tables which carry the label “classification according to alloy type” or “ISO 3581-B” are applicable only to products classified to that system. c) Paragraphs and tab

31、les which carry neither label are applicable to products classified according to either or both systems. 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

32、 latest 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 metals Type of product, dimensions, tolerances and markings ISO 2401, Covered el

33、ectrodes Determination of the efficiency, metal recovery and deposition coefficient ISO 6847, Welding consumables Deposition of a weld metal pad for chemical analysis ISO 6947, Welds Working positions Definitions of angles of slope and rotation ISO 8249, Welding Determination of Ferrite Number (FN)

34、in austenitic and duplex ferritic-austenitic Cr-Ni stainless steel weld metals ISO 13916, Welding Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature ISO 14344, Welding and allied processes Flux and gas shielded electrical welding processe

35、s Procurement guidelines for consumables SANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(E) 2 ISO 2003 All rights reservedISO 15792-1:2000, Welding consumables Test methods Part 1: Test methods for all-weld metal t

36、est specimens in steel, nickel and nickel alloys 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 for indicating

37、the chemical composition of the all-weld metal deposit obtained with a given electrode. The “nominal composition” approach uses designation components indicating directly the nominal levels of certain alloying elements, given in a particular order, and some symbols for low but significant levels of

38、other elements, whose levels are not conveniently expressed as integers. The “alloy type” approach uses tradition-based three- or four-digit designations for alloy families, and an occasionally additional character or characters for compositional modifications of each original alloy within the famil

39、y. Both designation approaches include additional designators for some other classification requirements, but not entirely the same classification requirements, as will be clear from the following sections. Table 1 lists the tests required for classification of an electrode in each approach. In many

40、 cases, a given commercial product can be classified using both approaches. Then either or both classification designations can be used for the product. SANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3581:2003(E) ISO 2003 A

41、ll rights reserved 3Table 1 Summary of test requirements Position of welding bElectrode designation Size a mm Chemical analysis test All-weld metal tension test Fillet weld test ISO 3581-A ISO 3581-B ISO 3581-A ISO 3581-B ISO 3581-A ISO 3581-B ISO 3581-A ISO 3581-B Coating type symbol B and position

42、 symbols 1 and 2 Position and coating type symbol - 15 3,2 or 3,0 4,0 5,0 or 4,8 6,0 (or 5,6 or 6,4) PA PA Not required Not required PA PA PA PA Not required PA Not required Not required Not required PA Not required Not required PB, PF, PD Not required Not required Not required Not required PB, PF,

43、PD PB PB All coating types and position symbol 3 Not applicable 3,2 or 3,0 4,0 5,0 or 4,8 PA PA Not required Not applicable Not required PA Not required Not applicable PB Not required Not required Not applicable All coating types and position symbol 4 Position symbol - 4 and all coating types 2,4 or

44、 2,5 3,2 or 3,0 4,0 5,0 or 4,8 Not required PA PA Not required PA PA PA PA Not required Not required PA Not required Not required Not required PA Not required Not required Not required Not required Not required PG PG PG PG All coating types and position symbol 5 Not applicable 3,2 (or 3,0) 4,0 5,0 (

45、or 4,8) PA PA Not required Not applicable Not required PA Not required Not applicable PB, PG Not required Not required Not applicable Coating type symbol R and position symbols 1 and 2 Position and coating type symbols - 16 and - 17 3,2 (or 3,0) 4,0 5,0 (or 4,8) 6,0 (or 5,6 or 6,4) PA PA Not require

46、d Not required PA PA PA Not required Not required PA Not required Not required Not required PA Not required Not required PB, PF, PD Not required Not required Not required Not required PB, PF, PD PB PB Not applicable Position and coating type symbols - 26 and - 27 3,2 (or 3,0) 4,0 5,0 (or 4,8) 6,0 (o

47、r 5,6 or 6,4) Not applicable PA PA PA PA Not applicable Not required PA Not required Not required Not applicable Not required PB PB PB aIf the size is not manufactured, the next nearest size may be substituted (provided that the substituted size is different from those specified in this table). bThe

48、 abbreviation PA, PB, PD, PF and PG indicate welding positions in accordance with ISO 6947, as follows: PA = flat PB = horizontal vertical PD = horizontal overhead PF = vertical up PG = vertical down SANS 3581:2008This s tandard may only be used and printed by approved subscription and freemailing c

49、lients of the SABS .ISO 3581:2003(E) 4 ISO 2003 All rights reserved3A Classification according to nominal composition 3B Classification according to alloy type The classification includes all-weld metal properties obtained with a covered electrode as given below. The classification is based on an electrode diameter of 4 mm with the exception of testing for welding position. The classification includes all-weld metal properties obtained with a covered electrode as given below. The classification