Steep-flanked single-bevel butt weld
Applied to joint
Butt joint — plates aligned end to end
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Equipment for groove welds
MIG and TIG machines suited for groove weld preparations on plate.
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Description
A single-bevel preparation with a very narrow groove angle, designed for electroslag, electrogas, or narrow-gap processes. Only one member is prepared with the steep bevel.
In plain English
Same concept as the steep-flanked V, but only one plate is prepped -- the other stays square. Used in the same narrow-gap and electroslag applications but where one member is fixed or too thick to prep on both faces. Less common than the steep-flanked V, but you will see it on T-joint configurations in heavy fabrication.
Symbol position
Narrow half-V symbol on the reference line. Arrow indicates prepared member.
Size notation
Narrow groove angle, root gap, plate thickness.
Common uses
- Electroslag/electrogas T-joints
- Narrow-gap automated welding on one-side-access joints
- Very thick plate single-member preparation
- Heavy fabrication where one member is already positioned
