scope:

This Standard specifies requirements 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, as specified in Clause 1.2;

c) low alloy steel covered electrodes for SMAW;

d) wire electrodes and deposits for gas-shielded metal arc welding (GMAW) of non-alloy and finegrain steels, as specified in Clause 1.3;

e) wire electrodes, rods, and deposits for GMAW, gas tungsten arc welding (GTAW), and submerged arc welding (SAW) of chromium and chromium-nickel steel, as specified in Clause 1.4

f) wire rods and deposits for GTAW and plasma arc welding (PAW) of carbon and low alloy steels, as specified in Clause 1.5;

g) carbon and low alloy steel electrodes for flux-cored arc welding (FCAW) and metal-cored arc welding (MCAW), as specified in Clause 1.6;

h) chromium and chromium-nickel steel electrodes for FCAW and MCAW, as specified in Clause 1.7;

i) fluxes and solid carbon steel electrodes for SAW; and

j) fluxes and composite carbon steel electrodes for SAW. 

Covered electrodes and deposits for SMAW of chromium and chromium-nickel steel are classified and CWB approved using the designations and classification requirements specified in AWS A5.4/A5.4M. Package marking is specified in Clause 8.1.

Wire electrodes and deposits for GMAW of non-alloy and fine-grain steels are classified and CWB approved using the designations and classification requirements specified in CAN/CSA-ISO 14341 for strength levels up to 550 MPa. For strength levels above 620 MPa, AWS A5.28/A5.28M is used for classification requirements and testing. The procedures and conditions for required tests, including radiographic test requirements, are specified in Clause 7. Package marking is specified in Clause 8.1.

Wire electrodes and deposits for GMAW, GTAW, and SAW of chromium and chromium-nickel steel are classified and CWB approved using the designations and classification requirements specified in AWS A5.9/A5.9M. Package marking is specified in Clause 8.1. 

Wire rods and deposits specifically for GTAW and PAW of carbon and low alloy steels are classified and CWB approved using the designations and classification requirements specified in AWS 5.18/A5.18M and AWS A5.28/A5.28M. Package marking is specified in Clause 8.1. 

Wire electrodes and deposits for carbon and low alloy steel FCAW and MCAW electrodes are classified and CWB approved using the designations and classification requirements specified in AWS A5.36/A5.36M, and the requirements of Annex M of this Standard. Package marking is specified in Clause 8.1. 

Wire electrodes and deposits for FCAW and MCAW of chromium and chromium-nickel steel are classified and CWB approved using the designations and classification requirements specified in AWS A5.22/A5.22M. For chemical analysis of MCAW, chromium and chromium-nickel steel electrodes the requirements for single diameter testing defined in AWS A5.9/A5.9M is acceptable. Package marking is specified in Clause 8.1. 

The filler metals and allied materials covered by this Standard are classified in accordance with requirements based on one or more of the following criteria:

a) chemical composition;

b) usability characteristics;

c) type of covering (for covered electrodes);

d) diffusible hydrogen in weld metal (hydrogen-controlled classifications);

e) mechanical properties of weld metal (including heat treatment condition); and

f) positions of welding for which electrodes are suitable.