- Other Rubber Products[4]
- Mining Machinery Parts[9]
- Prefab Houses[7]
- Tents[1]
- Other Mining Machinery[7]
- Pumps[9]
- Other Valve Parts[3]
- Other Mechanical Parts[10]
- Cast & Forged[2]
- Plastic Tubes[1]
- Pressure Vessels[3]
- Pipe Fittings[3]
- Steel Pipes[6]
- Organic Salt[1]
- Polymer[3]
- Separation Equipment[1]
- Amine[1]
- Stainless Steel Pipes[2]
- Chemical Auxiliary Agent[4]
- Other Hand Tools[1]
- Drilling Rig[5]
- Other Machinery[3]
- Vibrating Screen[1]
- Machinery Stock[1]
- Transformers[1]
- Steel Sheets[1]
- Mouldings[1]
- Machinery Design Services[1]
- Machinery Processing Services[2]
- Building Material Making Machinery Parts[1]
- Sandwich Panels[1]
- Funeral Supplies[1]
- Gear Cutting Machine[1]
- Contact Person : Mr. Lee Allan
- Company Name : Puyang Zhongshi Group Co., Ltd.
- Tel : 86-393-4805739
- Fax : 86-393-4805579
- Address : Henan,Puyang,Mazhuangqiao Industrial Zone, Puyang city, Henan, China
- Country/Region : China
- Zip : 457331
API oil drill pipe
api 5dp drill pipe,drill collar,welded/integral heavy weight drill pipe and kelly M&B,Hardband&Internal plastic coat DS/HT TJ
Our API 5dp drill pipe are of high physical property, for their strictly controlled processing of sulphur and phosphorus.To ensure the materials to meet even surpass the requirements of API Specification, heat treatment is on the basis of the actual chemical analysis of each heat of steel.Strict full-length inspection especially on the weld-neck region ensures the drill pipes are of no defects.
All threads are machined by CNC Lathes and inspected with API Spec standard thread gauges. To improve the galling-resistance during initial break-in and drilling operation, all threads are also phosphated or coppered, and all the roots are cold rolled. The products shall be equipped with pressed steel or plastic steel thread protectors on the connections.
Our company will always keep the various demands of broad customers in mind and provide the best service end-users.
Spec | Weight | Flat-end Weight | External Diameter D | Wall Thickness t | Grade | Upset Type | |||
lb/ft | Kg/m | inch | mm | inch | mm | ||||
2-3/8″ | 6.65 | 6.27 | 9.33 | 2.375 | 60.3 | 0.280 | 7.11 | E,X,G,S | Upset |
2-7/8″ | 10.4 | 9.72 | 14.47 | 2.875 | 73.0 | 0.362 | 9.19 | E,X,G,S | Upset |
3-1/2″ | 13.3 | 12.32 | 18.34 | 3.500 | 88.9 | 0.368 | 9.35 | E,X,G,S | Upset |
3-1/2″ | 15.5 | 14.64 | 21.79 | 3.500 | 88.9 | 0.449 | 11.4 | E,X,G,S | Upset |
4″ | 14.0 | 12.95 | 19.27 | 4.000 | 101.6 | 0.330 | 8.38 | E,X,G,S | Int Upset |
4-1/2″ | 16.6 | 15.00 | 22.32 | 4.500 | 114.3 | 0.337 | 8.56 | E,X,G,S | Int-Ext Upset |
4-1/2″ | 20.0 | 18.71 | 27.84 | 4.500 | 114.3 | 0.430 | 10.92 | E,X,G,S | Int-Ext Upset |
5″ | 19.5 | 17.95 | 26.70 | 5.000 | 127.0 | 0.362 | 9.19 | E,X,G,S | Int-Ext Upset |
5″ | 25.6 | 24.05 | 35.80 | 5.000 | 127.0 | 0.500 | 12.7 | E,X,G,S | Int-Ext Upset |
5-1/2″ | 21.9 | 19.83 | 29.52 | 5.500 | 139.7 | 0.361 | 9.17 | E,X,G,S | Int-Ext Upset |
5-1/2″ | 24.7 | 22.56 | 33.57 | 5.500 | 139.7 | 0.415 | 10.54 | E,X,G,S | Int-Ext Upset |
API oil drill pipe
