| Weld design | Moment of inertia of fillet weld J [mm 4 , in 4 ] | Position of center of gravity of weld group section | 
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 | J = π a (r + a / 2) 3 | - | 
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Meaning of used variables:
| a | fillet weld height [mm, in] | 
| B | width of weld group [mm, in] | 
| H | height of weld group [mm, in] | 
| L | weld length [mm, in] | 
| r | weld radius [mm, in] | 
| s | web thickness [mm, in] | 
| t | flange thickness [mm, in] |