V groove with broad root face symbol
Also called Y weld, Single-V butt weld with broad root face
A V groove that stops short of the full thickness, leaving a broad root face. The weld does not penetrate the whole joint.
What the V groove with broad root face symbol means
A V groove that stops short of the full thickness, leaving a broad root face. The weld does not penetrate the whole joint.
AWS A2.4 and ISO symbols
Single-V butt weld with broad root face (Y). A symbol of its own: a V on a short stem, like a Y.
ISO SVGWhere you see it
Partial-penetration butt joints, and joints sealed from the other side.
What is written next to it
On the welding symbol, the V groove with broad root face carries the groove depth and the effective throat, which is less than the plate thickness.
How it is inspected
Inspection of a V groove with broad root face usually covers visual inspection, with the throat size checked against the drawing. Each inspection is recorded against the weld, so the joint can be signed off with its evidence. See the ITR guide.
Related symbols
Frequently asked questions
What does the V groove with broad root face symbol look like?
On AWS A2.4 drawings: No separate symbol: a V groove with the groove depth and effective throat written to the left. In ISO 2553: A symbol of its own: a V on a short stem, like a Y.
Is the V groove with broad root face symbol the same in ISO and AWS?
No. A symbol of its own: a V on a short stem, like a Y.
Where is a V groove with broad root face used?
Partial-penetration butt joints, and joints sealed from the other side.
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