I wish it was spelled out clearer than it is, but after talking with Chet and others, I feel better about the position on prequalified T joints welded with a fillet.
AWS D1.1:2004
Table 3.7 shows prequal fillet requirements.
3.7 refers to Figure 3.1, which clearly is illustrating a fillet along with the groove.
3.1 Scope says pre-qual status requires full compliance with Section 3.
3.7.3.2 covers single pass fillets and does not exclude T joints or say that it only applies to lap joints.
The previously listed items are from Section 3(read 3.1 Scope again).
Fig 2.4 references 2.8.1.1 which is clearly delineated from 2.8.3 and implies some apples to oranges assumptions about the lap joints.
3.9.1 does not automatically apply to all fillets; it applies when appropriate for the conditions. (Obviously fillets are used for more than lap joints)
3.9 refers to Table 5.8, which leads to 5.14 which states that Table 5.8 shall apply in "all cases"(I read that as all fillet welds, except for reinforcing fillets, and not just for lap joints).
Although the words
"T joints welded with a fillet are prequalified" do not appear in D1.1, I don't think that "ALL" fillet welds other than lap joints need to be qualified by Section 4 as long as they still meet all of the requirements of Section 3.
Any thoughts?