welding
welding
(OP)
hi ,
is the back welding ( backgouging + welding the back side) for a single groove weld considered as a backing?
by ASME SECT.IX-EDIT 2013- DEFINITION : BACKING:a material placed at the root of weld joint for the purpose of supporting molten weld metal so as to facilitate complete joint penetration. the material may or may not fuse into the joint.
by ASME SECT.IX-EDIT 2013 -PARAGRAPH QW-301-2 refers to figure QW-469-1 which indicate a strip as backing.
thanks.
is the back welding ( backgouging + welding the back side) for a single groove weld considered as a backing?
by ASME SECT.IX-EDIT 2013- DEFINITION : BACKING:a material placed at the root of weld joint for the purpose of supporting molten weld metal so as to facilitate complete joint penetration. the material may or may not fuse into the joint.
by ASME SECT.IX-EDIT 2013 -PARAGRAPH QW-301-2 refers to figure QW-469-1 which indicate a strip as backing.
thanks.





RE: welding
RE: welding
per QW-433, it said welder qualified with F6 he is qualified for All F6 , this includes F6 with and without backing because the QW-433 shows F-number and backing condition ( with or without)
RE: welding
Also see Blocks 20 and 21 of the WQR sample I previously attached.