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Filler metals and allied materials for metal arc welding
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
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
This Standard includes specifications (see Table 1) for the classification and certification of
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
For the purpose of determining compliance with the requirements of this Standard, the actual test values obtained are subjected to the rounding off rules of ISO 80000-1, Clause B.3, Rule A. If the measured values are obtained by equipment calibrated in units other than those of this Standard, then the measured values are converted to the units of this Standard before rounding. If an arithmetic average value is to be compared to the requirements of this Standard, then rounding is to be done only after calculating the arithmetic average. If a test method used in this Standard contains instructions for rounding that conflict with the instructions of this Standard, then the rounding requirements of the test method will apply. An observed or calculated value shall be rounded to the nearest 10 MPa for tensile and yield strength, and to the nearest unit in the last right-hand place of figures used in expressing the limiting values for other quantities. The rounded results will satisfy the requirements of the appropriate table for the classification under test.
This Standard does not address safety associated with welding and welding practices. Note: CAN/CSA-W117.2 addresses safety in welding and should be followed in addition to applicable workplace health and safety legislation. It is the responsibility of the users of this Standard to establish appropriate safety and health practices, and to determine the applicability of regulatory limitations prior to use.
In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
The values given in SI units are the units of record for the purposes of this Standard. The values given in Annex Hare for information and comparison only.
The metric versions of AWS standards are used to certify consumables (e.g., A5.4M) except for wire diameter tolerances (see Clause 5).
| SDO | CSA: Canadian Standards Association |
| Document Number | |
| Publication Date | Jan. 1, 2023 |
| Language | en - English |
| Page Count | 69 |
| Revision Level | |
| Supercedes | |
| Committee |
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