Fillet weld size
Formulas
z = a · √2
a = z · √2 / 2
Calculation rules
- Equal-leg fillet weld with a right-angled triangular cross-section (90° between the parts).
- Quick-reference table for values from 2 to 13 mm.
- Rounding: 2 decimal places.
Results are for guidance only, with no guarantee of correctness – check them against the current edition of the standard. They do not replace a WPS or the decision of the welding coordinator. Full description in the methodology