AWS Certified Welding Inspector — FundamentalsWelding SymbolsEasy
A welding inspector reviews a drawing that specifies a weld requiring a flush contour. Which supplementary symbol is used to indicate that the weld face should be flush with the base metal?
- AMelt-through symbol
- BConcave contour symbol
- CConvex contour symbol
- DFlush contour symbol
Show answer & explanationAnswer & explanation
Correct answer: D. Flush contour symbol
The flush contour symbol is a straight line placed above or below the basic weld symbol, indicating that the weld face should be flush with the base material.
Why the other options are wrong
- A. The melt-through symbol indicates complete joint penetration in a weld made from one side.
- B. The concave contour symbol is a curved line indicating a concave weld face.
- C. The convex contour symbol is a curved line indicating a convex weld face.
Flush Contour Symbol
A supplementary symbol used in welding drawings to indicate that the face of the weld should be flat and flush with the surface of the adjacent base metal.
- Represented by a straight line.
- Placed above or below the basic weld symbol, on the reference line.
- Often accompanied by a finish symbol (e.g., G for grinding) to specify the method to achieve flushness.
Memory trick: Contours shape the weld's face, flushness is a flat space.