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Brand Name : Teamwhole
Model Number : DTH drill pipe
Certification : ISO9001
Place of Origin : Hunan, China (Mainland)
MOQ : 1 Piece/Pieces dth drill pipe
Payment Terms : L/C, T/T, Western Union, MoneyGram
Supply Ability : 50000 Piece/Pieces per Month dth drill pipe
Delivery Time : Shipped in 7 days after payment
Packaging Details : dth drill pipe are Packed with steel case
Size : 178mm(7 inch)
Length : 1000mm - 9000mm
Material : Alloy steel
Usage : Water well drilling, foundation drilling
Wall thickness : 9.5mm
Welding method : Friction welding
Price : Negotiation
Product features:
According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice avers. Usually we are offering 50mm, 60mm, 76mm, 89mm, etc.
Specifications:
| Size | Nominal mass Lb/ft | Calculated weight type | Wall thickness | |||
| in. | mm | lb/ft | kg/m | in. | mm | |
| 2 3/8 | 60.3 | 6.65 | 6.26 | 9.32 | 0.280 | 7.11 | 
| 2 7/8 | 73.0 | 10.4 | 9.72 | 14.48 | 0.362 | 9.19 | 
| 3 1/2 | 88.9 | 9.50 | 8.81 | 13.12 | 0.254 | 6.45 | 
| 3 1/2 | 88.9 | 13.30 | 12.31 | 18.34 | 0.368 | 9.35 | 
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 | 
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 | 
| 4 | 101.6 | 14.00 | 12.93 | 19.26 | 0.330 | 8.38 | 
| 4 1/2 | 114.3 | 13.75 | 12.24 | 18.23 | 0.271 | 6.88 | 
| 4 1/2 | 114.3 | 16.60 | 14.98 | 22.31 | 0.337 | 8.56 | 
| 4 1/2 | 114.3 | 20.00 | 18.69 | 27.84 | 0.430 | 10.92 | 
| 5 | 127.0 | 16.25 | 14.87 | 22.15 | 0.296 | 7.52 | 
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 | 
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 | 
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 | 
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 | 
| 5 1/2 | 139.7 | 21.90 | 19.81 | 29.51 | 0.361 | 9.17 | 
| 5 1/2 | 139.7 | 24.70 | 22.54 | 33.57 | 0.415 | 10.54 | 
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