Gentlemen, I'm asking for your help in double checking me on a Prequalified WPS that I need to write for one of our field superintendents.
He wants to use E7024 SMAW filler rod for fillet welds in the horzontal position out in the field on a structural building, I'm not sure exactly what parts are being joined. These are not-low hydrogen rods. I find it odd that he wants to change to a rod we don't usually use, thus we don't have a WPS on file.
As I read D1.1 (06), pg57, section 3.3 Base Metal /Filler Metal Combinations; They can weld "Any steel to itself or any steel to another in the same group". Thus SMAW E70XX is allowed for group I only to group I, and the relationship would be matching.
But due to this rod is not a low hydrogen rod, it can NOT be used to weld "Any steel in one group to any steel in another."
Basically what I am trying to confirm is that the Table 3.1, Pre-qualified Base Metal-Filler Metal Combinations, is that a Group I material may be welded to itself w/ SMAW E70XX (in my case E7024), but it can Not be used to weld Group II material because it is not listed in Group II Filler Metal Requirments.
Thanks in Advance, Chris