Open and closed bends
present unique problems that require more calculations than 90° bends
For any bend, we calculate the following:-
K factor
Setback
Bend Allowance
Flats
Total Development Width (TDW)
K-Factor
Look up K-Factor from the ‘K-Factor Chart’45° = 0.41421 inch
Set Back
Set Back (SB) = K (R + T)
SB = 0.41421 (0.1875 + 0.050)
SB = 0.098 inch
