Maximum weave width in GMAW & single pass/multipass req.

Topic American Welding Society Services / Technical Standards & Publications / Maximum weave width in GMAW & single pass/multipass req.

By ganeshrnair9 Date 07-27-2019 14:52

Dear friends,
1. What will be the maximum weave width limit in GMAW. Can we put this area as "not applicable" for GMAW.
2. If a WPS is qualified for single pass fillet weld, can we use this PQR for multipass. In ASME sec ix it is mentioned as supplementary essential variable, our procedure have no impact requirement.
NOTE : Reference code is ASME SEC IX

By 803056

Date 08-31-2019 03:08 Edited 08-31-2019 14:13

ASME Section IX doesn't tell the contractor "how to do anything" when it comes to the method of manufacturing. Matching filler metal, not addressed. Joint details, no recommendations in Section IX, but there is limited guidance in B16.25. Welding parameters, no guidance or limitations included in section IX. The list goes on, but I think you should see the limitations regarding recommendations on how something is welded or fabricated is not typically part of the ASME B&PV Codes.

Al

By 619822 Date 09-24-2019 02:49

I usually consider the limit of 13 MM weld deposit thickness for a single pass as the requirement for weave width. when we are welding in a groove, It is not allowed to weld more than 13 mm thick. the weaving width does not matter here because both the sides are limited. However when I weld a single layer on a plate, then the max width allowed could be 13 mm for a single pass. this is what I follow.

Topic American Welding Society Services / Technical Standards & Publications / Maximum weave width in GMAW & single pass/multipass req.