CSA W48:23

Preface 

This is the fifth edition of CSA W48, Filler metals and allied materials for metal arc welding . It supersedes the previous editions published in 2018, 2014, 2006, and 2001. Filler metals standards are intended to provide a generic method of classification and evaluation that allows the end user to select appropriate welding consumables for a given welding process and product or application. The procedures and tests set out in this Standard, when correctly followed, are designed to produce a consistent product with test results that are as reproducible as possible. The following are the major changes to this edition: a) the reference to AWS A5.10/A5.10M has been added for the classification of aluminum GTAW and GMAW electrodes; b) all specifications and classifications related to carbon and low-alloy steel SMAW electrodes have been replaced by references to AWS A5.1/A5.1M and A5.5/A5.5M; c) all specifications and classifications related to SAW carbon and low-alloy electrodes/fluxes have been replaced by references to AWS A5.17/A5.17M and AWS A5.23/A5.23M; d) updates to Clauses regarding packaging and marking have been made and two new Clauses added, one for technical data sheets (TDS) and the second for decertified products; and e) Annexes have been updated and consolidated, providing information on packaging, storage, and conditioning of electrodes (Annex B); general information and an explanation of the classification system (Annex C); descriptions and intended uses of the welding filler metals and allied materials (Annexes D and E); information on diffusible hydrogen (Annex F); and information on certification (Annex G). The Standard has also been rewritten in such a manner to facilitate ease of use and future revisions with respect to adoption of other regional and international standards. During preparation of this revision, close liaison was maintained between AWS and ISO to create a robust Canadian Standard supporting global efforts towards standard harmonization while satisfying the specific and unique technical requirements of Canadian industry. This Standard was prepared by the Technical Committee on Welding Filler Metals, under the jurisdiction of the Strategic Steering Committee on Construction and Infrastructure, and has been formally approved by the Technical Committee. 

Scope 

1.1 Specifications 

This Standard includes specifications (see Table 1) for the classification and certification of a) carbon steel-covered electrodes for shielded metal arc welding (SMAW); b) chromium and chromium-nickel steel-covered electrodes for SMAW, including electrodes designated for welding heat-resistant steels containing more than 11% chromium and less than 50% nickel; c) low-alloy steel covered electrodes for SMAW; d) wire electrodes and deposits for gas-shielded metal arc welding (GMAW) of non-alloy and fine- grain steels; e) wire electrodes, rods, and deposits for GMAW, gas tungsten arc welding (GTAW), and submerged arc welding (SAW) of chromium and chromium-nickel steel; f) wire rods and deposits for GTAW and plasma arc welding (PAW) of carbon and low-alloy steels; g) carbon and low-alloy steel electrodes for flux-cored arc welding (FCAW) and metal-cored arc welding (MCAW); h) chromium and chromium-nickel steel electrodes for FCAW and MCAW; i) fluxes and solid carbon/low-alloy steel electrodes for SAW; j) fluxes and composite carbon steel/low-alloy electrodes for SAW; and k) bare aluminum and aluminum alloy electrodes and rods, as specified in Clause 1.2. 

1.2 Exceptions 

This Standard does not allow an electrode certified under one classification to be certified under another classification for the same welding process, with the following exceptions: a) For SAW, i) a composite electrode may be certified under different classifications in combination with different fluxes; and ii) fluxes may be classified under any number of classifications, for weld metal in either or both the as-welded and post-weld heat-treated conditions, or using different electrode classifications. b) For FCAW and MCAW A5.36/A5.36M fixed and open classification equivalents (see Clause 1.1), E49C-6M may also be listed as E49C-3M. c) For chromium and chromium-nickel steel covered electrodes, materials classified under one classification may be classified under any other classification of AWS A5.4/A5.4M provided they meet all the requirements for those classifications, except a material shall not be classified under more than one of the following: EXXX-15, EXXX-16, EXXX-17, or EXXX-26 designations. d) For wire electrodes and deposits for GMAW of carbon and low-alloy steel, materials classified under one classification may be classified under another classification of CSA ISO 14341 or AWS A5.36/A5.36M with a different shielding gas provided they meet all requirements for those classifications (see

Product Details

Edition:

5th

Published:

02/27/2023

ISBN(s):

9781488344374

Number of Pages:

70

File Size:

1 file , 1000 KB

Product Code(s):

2430188, 2430187, 2430187, 2430188

Note:

This product is unavailable in Russia, Ukraine, Belarus

Document History

CSA W48:23

CSA W48-18

CSA W48-14

CSA W48-06 (R2011)