Wall thickness of pipe suitable for welding in welder projects
Thread Content
The project codes obtained by a welder are: GTAW-FeII-6G-3/76-Fefs-02/11/12 and SMAW-FeII-6G(K)-9/76-Fef3J. If a pipe is to be welded entirely by manual welding with electrodes or entirely by TIG welding, what is the maximum wall thickness of pipe that this welder can handle? Are they 3*2=6mm and (9-3)*2=12mm respectively?
9*2=18, which represents the coverage area of the base material during welding; -3 represents the range of weld thickness
The project code for this welder should be GTAW-FeII-6G-3/76-Fefs-02/11/12+SMAW-FeII-6G(K)-9/76-Fef3J. The thickness of the weld metal produced by GTAW is 6 mm, while that of the weld metal produced by SMAW is 12 mm. It is possible to carry out the welding entirely using TIG welding, but it is not possible to carry out the welding entirely using manual shielded metal arc welding.
This post was last edited by yujwlhh on 2019-9-14 09:01. The maximum thickness of the base material for all TIG welding done by this welder is 6 MM； For all arc welding processes, the maximum thickness of the base material is 18 MM ； The maximum thickness of the base material for argon-electric welding is 24 MM. But this welder cannot perform root welding using electric welding.
The TSGZ6002-2010 \"Rules for Assessing Welders of Special Equipment\" gives an example like this, but it does not specify the case of tungsten inert gas welding or electric welding alone.
This post was last edited by yujwlhh on 2019-9-16 at 16:46. Look down to the tables showing the thickness of the test specimens and their actual weldable thickness, and you’ll know. Table A-7 of P24