Table 6.1 undercut interpretation.

By wilco Date 06-02-2012 23:42

Need help, dumb question.

Table 6.1 (7) undercut (A). Static, non tubular.

1) is 1/32 for depth and width through out the length of the weld? Or 1/32 deep, wide, and long?

2) is 1/16 for any accumulated length up to 2" in any 12", referring to depth - or - 1/32 deep with length and width of 1/16?

Is there a reason the code does not specify depth and width in (A) such as it states "depth" in (B) for cyclic and tubular?

By Shane Feder (****)

Date 06-03-2012 00:14

Wilco,
Based on this interpretation it appears it is depth,
Regards,
Shane

Subject. Welder Qualification (Allowable Undercut)
Code Edition: Dl.1-86
Code Provision: Subsection 5.28.6
AWS Log: Dl-88-001
Inquiry: In 5.28.6, directions are provided for visually evaluating a welder qualification test plate in accordance
with 9.25.1. There are two maximum limits of allowable undercut in 9.25.1; which of these
values should be used for evaluation of the welder qualification test plate?
Response:
Undercut shall be no more than 1/32 in. (0.8 mm) deep. Note that the maximum allowable undercut
for qualifying procedures, welders, welding operators, and tack welders was revised to 1/32 in.
maximum in AWS Dl.1-88.