By 803056
Date 06-13-2017 21:54
Edited 06-13-2017 21:57
Another Farm Code!
OK, clause 4.7.5 allows that a welder qualified with any of the base metals listed as Group I or Group II from D1.1 as acceptable for welder qualification for any of the base metals listed by D1.6.
Further into the reading it speaks of the permitted F numbers and it references all the filler metal listed in table 4.5 as acceptable. It includes F4 that encompasses low hydrogen electrodes selected from A5.1, A5.4, as well as electrode selected from A5.5 are acceptable.
I have two work arounds;
A welder qualified to D1.1 using SMAW with a base metal from group I or II using an electrode from A5.1 or 5.5 (I used E7018) is qualified to weld any prequalified base metal listed in D1.6.
A welder qualified to D1.1 using GMAW with a base metal from group I or II using an electrode from A5.18 or 5.28 is qualified to weld any prequalified base metal listed in D1.6.
And I can and occasionally do have the welder qualify a WPS using the fillet break test. The coupon is a little longer and involves a couple of macroetch samples in addition to the break test. I do this if there are any qualms on the client's parts.
If I am utilizing qualifications to D1.1, i.e., the fillet break test, it is one macroetch in addition to the break test.
Are you around Houston this week?
Al