Edge weld
The symbol for a weld on an edge joint, where the edges of two or more parallel or nearly parallel members meet.
How to read it
An edge joint is a joint between the edges of two or more parallel or nearly parallel members.
This explains what a symbol specifies on a drawing. It isn't welding instruction, and a drawing's own notes and the governing code take precedence.
Older symbols
Older drawings mark welds on flanged edges with their own symbols. The Army's 1967 welding manual, TM 9-237, gives edge-flange and corner-flange weld symbols for light gage metal joints whose edges are flared or flanged. India's IS 813:1986 has a symbol for a butt weld between plates with raised edges, the raised edges melted down completely.
Read next
- Next in Welding symbolsFlush contourA straight line beside a weld symbol: the face of the weld is to be flat, or flush.
- The same shape in Blueprint symbolsStairsA staircase, seen from above. The arrow shows the direction of travel from this floor, labelled with the direction and the number of risers.
More welding symbols
The same shape elsewhere
Browse symbols drawn with arrows or lines.
Sources
- Welding Theory and Application, TM 9-237, 1967, Department of the Army (Internet Archive), Glossary; chapter 11, section II
- Scheme of symbols for welding, IS 813:1986, Bureau of Indian Standards (Internet Archive, Public.Resource.Org), Table 1
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 28, 2026. How we research
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