How should the grooves for T-joints and butt joints be prepared?
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The devices I designed use butt joints and T-joints, made of 0Cr25Ni20 material. How should the grooves be prepared? Is there any standard that specifies this? Thank you
Specific provisions are given in the structural design of pressure vessels for hg20583. . . .
The groove shape should be chosen based on the wall thickness, as well as considering whether double-sided welding is possible and what welding method will be used. For example, with manual welding, a groove is required for walls 3 millimeters thick, while submerged arc welding can work with walls up to 12 millimeters thick. In the case of thick-walled containers or pipes, a double V-groove is used to reduce the amount of material that needs to be welded. For T-joints, full penetration is required; if only single-sided welding is possible, a single V-groove is used, whereas if double-sided welding is feasible, a K-groove is employed. The K-groove results in less material being welded and less deformation compared to a single V-groove.