INTERNATIONAL STANDARD
Weldingconsumables-Covered electrodesformanualmetalarc weldingof stainless and heat-resisting steels-Classification
Produitsconsommables pour le soudage-Electrodes enrobees pour le soudage manuel a larc des aciers inoxydables et resistant auxtemperatures elevees - Classification
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Contents
Page
Foreword. ivIntroduction. vi1 Scope.. 12 Normative references. 13 Terms and definitions. 14 Classification. 4.1 General. 2 24.2 Classification systems. 44.2.2 4.2.1 Classification: nominal position - A General. 5 44.2.3 Classification: alloy type - B 5Symbols and requirements. 5.1 Symbol for the product or process. 5 55.1.1 Classification according to alloy type - Classification according to nominal position - A 55.1.2 5.1.3 Symbol for the chemical position of all-weld metal. B 5 55.2 5.2.1 Symbol for type of electrode covering General 6 65.2.2 Classification according to nominal position-A. Classification according to alloy type 65.3 5.2.3 Symbol for nominal electrode efficiency and type of current. B 18 65.3.1 5.3.2 Classificationaccording to nominal position-A. Classification according to alloy type - B 18 185.4 Symbol for welding position. 196 Chemical analysis. 197 Mechanical property tests. 7.1 General. 19 197.2 Preheat and interpass temperatures. Pass sequence.. 19Fillet weld test. 7.3 20 208 9 Rounding procedure. 2110 Retests. 2111 Technical delivery conditions. 2212 Examples of designation. 2212.1 12.2 Example 1: classification according to nominal position - A. General. 22 2212.3 12.4 Example 2: classification according to alloy type - B. Example 3: Z classification. 22 23Annex A (informative) Types of covering. 24Annex B (informative) Considerations on weld metal ferrite contents. 26Bibliography. 29
Foreword
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This document was prepared by Technical Committee ISO/TC 44 Welding and allied processes Submittee SC 3 Welding consumables in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 121 Welding and allied processes in accordance
This fourth edition cancels and replaces the third edition (ISO 3581:2016) which has been technicallyrevised.
The main changes are as follows:
--the document has been updated in accordance with the drafting guidelineslaid outin the ISO House Style;- the dates of normative references have been updated to show their latest editions;- a new Clause 3 (Terms and definitions) has been added in accordance with the standard structure of ISO documents;ISO 2401; a new Table 2 has been added listing classification systems;- new alloys have been added to Table 3 (formerly Table 2) and associated clauses of the document; - the chemical positions of several alloys have been updated in Table 3 (formerly Table 2);:- certain alloys have been reclassified in Table 3 (formerly Table 2):- a new footnote was added to Table 3 (formerly Table 2) regarding Co content;
the wording of Clause 9 (formerly Clause 8) has been updated.
body. A plete listing of these bodies can be found at Official Any feedback or questions on this document should be directed to the user's national standardsinterpretations of ISo/TC 44 documents where they exist are available from this page:
