it will vary by Tool Joint OD and ID.
FYI 7"OD x ID 4" HT55 is 52,600 Ft lbs
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A 4 inch drill pipe torque is used for fishing in small casing.
Surface area of the pipe: diameter*pi*length but make sure that the diameter and length are both in meters or inches.
Example sentence - He would be leaving as soon as he fixed the broken pipe.
i need to make a 14 sided figure from straws and pipe cleaners
measure the radius of the pipe. (half the diameter - the width of the pipe) then measure the length of the pipe. then use the formula pi (3.14) x radius2 x length. the answer is the volume in the pipe