Water Well Drill Pipes/Water Well Drill Rods/DTH Drill Pipes

Main Technical Features

● Traditionally the threads and the joint between the tube and the end-pieces are vulnerable. To

combat the problem we've friction-welded the joints for maximum strength and heat-treated

the end-pieces for optimum durability.

● Drill pipe is generally described by tube OD, nominal weight, pipe grade, type tool joint,

thread connection and classification.

● We do special heat-treating the threads ensures not only a long service life, but also simplifies

joining and breaking.

● Standard material for drill pipe is R780,but other material S135,G105 are available.
263

Outer Diameter		Wall Thickness(mm）	Thread Pin/Box	Length(meters)
(inch)	(mm)	Wall Thickness(mm）	Thread Pin/Box	Length(meters)
3	76	6-8.5	API 2-3/8''REG	1-9
3-1/2	89	6.5-8.5	API 2-3/8''REG	1-9
4	102	6.5-8.5	API 3-1/2''REG	1-11
4-1/2	114	8.5-10	API 3-1/2''REG	1-11
5	127	8.5-10	API 3-1/2''REG	1-11
6	152	8.5-10	API 4-1/2''REG	1-6
7	178	10-12.7	API 4-1/2''REG	1-6

Notes

● Other specification drill pipes are also available upon request.

● Thread: API REG/IF or BECO or produced as customers requirements.

● All drill pipes are friction welded.

● Large sizes from 127mm to 500mm drill pipe are available.