DTH Drill Pipe
TEAMWHOLE DRILL PIPE
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.
| Model | Wall thickness | Thread | C1-I.D | D-Wrench | K-Flat | L-Length | Weight |
| 73mm(3") | 6.5 | API 2 3/8"REG | 32 | 57 | 45 | 3000 | 40 |
| 73mm(3") | 8.5 | API 2 3/8"REG | 32 | 57 | 45 | 3000 | 48 |
| 89mm(3 1/2") | 6.5 | API 2 3/8"REG | 32 | 70 | 45 | 3000 | 48 |
| 89mm(3 1/2") | 8.5 | API 2 3/8"REG | 32 | 70 | 45 | 3000 | 58 |
| 102(4") | 6.5 | API 3 1/2"REG | 45 | 83 | 45 | 3000 | 48 |
| 102(4") | 8.5 | API 3 1/2"REG | 40 | 83 | 45 | 3000 | 58 |
| 114mm(4.5") | 6.5 | API 3 1/2"REG | 45 | 95 | 51 | 3000 | 63 |
| 114mm(4.5") | 8.5 | API 3 1/2"REG | 45 | 95 | 51 | 3000 | 76 |
| 114mm(4.5") | 6.5 | API 4 1/2"REG | 60 | 95 | 51 | 3000 | 63 |
| 114mm(4.5") | 8.5 | API 4 1/2"REG | 60 | 95 | 51 | 3000 | 76 |
----The other specification drill pipes are available upon request.
----Kinds of Thread API REG,IF or BECO or produced as customer required.
----All of the drill pipes are friction thread.
----More large size of pipe from 127mm to 500mm drill pipe are available.
