The weight varies on the pipe's diameter and thickness. To give you an idea, refer to the side table below.
Aluminum Gated Pipe via kwout
This shows us that a 100 ft tube with outside diameter of 6" and wall thickness of .050" weighs 110 pounds.
And a 100 ft tube with outside diameter of 12" and wall thickness of .064" weighs 286 pounds.
A simple math tells us that a 30 ft aluminum pipe with an outside diameter of 6" and a wall thickness of .050" weighs 33 pounds.
And a 30 ft tube with an outside diameter of 12" and wall thickness of .064" weighs about 86 pounds.
Tip! UGA.edu shares Factors to Consider in Selecting a Farm Irrigation System.