"G' class electrode and charpy impact test for welding Matl.

Date 12-12-2011 23:30

What does it mean "G' class electrode or filler.
Can we get all of type welding material (FCAW. SMAW , GMAW etc...) to be charpy tested and certified and report in the CMTR.
Thanks.

By Leandro Sabino Date 12-13-2011 04:02 Edited 12-19-2011 17:03

By jon20013 (*****)

Date 12-13-2011 05:55

Good discussion by Leandro but I'll add a post script:

In MOST International Codes, especially when notch toughness testing is required, if you run out of electrodes and wish to buy a different product name, produced by another maker, you will need to requalify your WPS. The reason is simply because the "G" designated electrodes can vary WIDELY in many properties (including tensile strength) because their composition is as agreed by the purchaser and the manufacturer.

For this reason alone I suggest using caution when developing a WPS around "G" designated electrodes.