Weld all around symbol and field weld blocks

The download brings together the marks that sit at the corner between the arrow and the reference line: the weld all around symbol, the field weld flag, two fillet callouts that already carry them, a callout with a tail and process attribute, the empty reference lines of ISO 2553 systems A and B, and the finishing marks for flush, convex, concave and blended toes. Every block comes in DWG and DXF with its library name, plus a PDF sheet.

Weld all around symbol: the circle at the junction

A small circle drawn where the arrow line meets the reference line means the weld does not stop: it runs continuously around the whole joint. Typical cases are a tube welded to a base plate, a bracket welded on all four sides or a boss around a hole. Without the circle, the weld covers only the side of the joint the arrow touches. The circle says nothing about the weld type or size; those still come from the symbol on the reference line. The rest of the callout is explained on the welding symbols page.

Field weld symbol and the all around circle together

The field weld symbol is a filled flag at the same junction. It means the weld is made on site, during erection, and not in the shop that makes the parts. The two marks often appear together on structural steel, for example a column base welded all around once it stands in place. The library has a fillet weld symbol with the circle and another with the flag as ready callouts, and both marks as separate blocks you can add to any other callout. The flag on these blocks points towards the tail.

Tail of the welding symbol and the process number

The tail is the fork at the end of the reference line. The callout here carries a PROCESS attribute for the process reference number of ISO 4063. After the process, separated by slashes, the tail can hold more information, such as the quality level, the welding position and the filler metal, or a reference to a welding procedure specification.

Finishing marks that combine with all around welds

The flush line, the convex arc and the concave arc describe the weld face. The blended toes mark asks for the edges of the weld to merge smoothly into the parent metal, which may mean dressing them, and it shows up on joints loaded in fatigue. All four are drawn to hang under the reference line, on the arrow side, and are mirrored for the other side.

Placing the weld all around and field weld marks in AutoCAD

The circle and the flag have their base point at the junction of arrow line and reference line. Any callout in the library has its own base point at the arrow tip, and its junction is the corner where the 45 degree arrow meets the 30 mm reference line, so you can snap either mark straight onto that corner. Everything is drawn at paper size on a 2.5 mm grid.

The circle, the flag and the tail follow ISO 2553:2019. That document is a paid ISO publication, and this page only describes the blocks drawn from it.