Welding Symbol
Build or read a BS EN ISO 2553 weld symbol in plain English
Symbol as drawn (ISO 2553, system A)
mm
Reading 6 mm
mm
Reading 0 mm
mm
Intermittent welds are written n × l (e): number, length, gap.
Reading 1
Results
Reads as
z6 fillet
In plain EnglishFillet weld on the arrow side, leg length 6mm (throat ≈ 4.2mm), full length of the joint.
Side rule (ISO 2553 system A)Symbol on the continuous reference line = arrow side; on the dashed identification line = other side.
Dimension lettersz leg · a throat · s penetration · n × l (e) intermittent
Contouras welded
Work out wire and gas
Sets up the joint, process and filler. You put the sizes in.
Work out wire and gas
Indicative design aids — every figure and its source is listed under "Figures based on" below.
Figures based on
- Symbols and dimensioning: BS EN ISO 2553:2019 system A
- Process numbers in the tail: BS EN ISO 4063:2023
Indicative design aids. "Typical" means no current standard sets it: follow your WPS and the consumable or gas data sheet named. "No source" means a workshop estimate: adjust to suit, or, where the box says it is fixed, a fixed estimating assumption.