Standard Roll Groove for ANSI B36.10 and Other IPS Pipe

Pipe OD (Column 2):
Maximum allowable tolerances from square cut ends is 0.03’’ for size up to 3 1/2’’; 0.045’’ for 4’’ thru 6’’; and 0.060’’ for size 8’’ and above.
Gasket Sealing Surface (Column 3):
The gasket sealing surface shall be free from deep scores, marks, or ridges that could prevent a positive seal.
Groove Width (Column 4):
Groove width is to be measured between vertical flanks of the groove side walls.
Groove Diameter (Column 5):
The “C” diameters are average values. The groove must be of uniform depth around the entire pipe circumference.
Minimum Wall Thickness (Column 6):
The “t” is the minimum allowable wall thickness that may be roll-grooved.
Groove Depth (Column 7):
The “d” is for reference use only. The groove dimension shall be determined by the groove diameter “C”.
Flare Diameter (Column 8):
The pipe end that may flare when the groove is rolled shall be within this limit when measured at the extreme end of the pipe