ASME AG-1:2012 pdf free download

ASME AG-1:2012 pdf free download.Code on Nuclear Air and Gas Treatment.
AA-6322.1 Joints to be wcldcd shall be brought into correct alignment within the tolerances required by the qualified welding procedure.
AA-6322.2 When tack welds are used to assemble the joint for welding and are incorporated into the final weld. they shall be made with electrodes meeting the requirements of the final welds.
AA-6322.3 Tack wclds not incorporated into the final welds shall be removed.
AA-6323 Weld Cleaning
AA-6323.1 Where cleaning of base metals is required. it shall be accomplished by wire brushing, grinding. blasting, solvents, or other suitable means that are noninjurious to the material or weld quality.
AA.6323.2 Before welding over previously deposited metal. slag, if present, shall be removed and the weld and adjacent base metal shall be brushed clean. This requirement shall apply not only to successive layers, hut also to successive beads and to the crater area when welding is resumed after any interruption.
AA-6323.3 Upon completion, the weld and adjacent areas shall he cleaned of all slag, excessive spatter, soot, dirt, or any residue from welding. Welds shall be left in a condition ready for subsequent inspection.
AA-6324 Weld Quali
AA-6324.l The sizes and lengths of welds shall be no less than those specifIed by design requirements and detail drawings.
AA-6324.2 Weld profiles shall he in accordance with the acceptable weld profiles shown in Fig. AA-6324.2.
AA-6324.3 The faces of fillet welds may be slightly convex, flat, or slightly concave, as shown in Fig. AA-6324.2, sketches (a) and (b). with flOflC of the unacceptable profiles shown in sketch (c).
AA-6324.4 Groove welds shall preferably be made with slight or minimum reinforcement except as may be otherwise provided. In the case of butt and corner joints, the reinforcement shall not exceed 14 in. (3.2 mm) in height and shall have a gradual transition to the plane of the base metal surface. See Fig. AA-6324.2, sketch (d). They shall be free of the discontinuities shown for butt joints in sketch (e).