Product Form
Rolled steel structural plates, sections and built-up members.
Crack Location
At the ends of a discontinuous fillet weld attaching a backing strip.
Dimensional requirements
None.
Manufacturing requirements
The backing strip to be continuous.
Note: This type includes tack welds to the edges of continuous longitudinal backing strips irrespective of spacing. The welds must conform in all respects to the workmanship requirements for permanent welds, and any undercut on the backing strip must be ground smooth. Do not consider the effects of tack welds which are subsequently fully ground out or incorporated into the butt weld by fusion.