Drill pipe is industrial tubular widely used for drilling operation.KANGYU OIL specially offers drill pipe available in various sizes and weights.All drill pipes are manufactured strictly according to API Spec 5D. Besides, in order to optimize wear resistance, hardbanding and internal plastic coating are applied to the KANGYU OIL Drill pipe.
| Size | Weight Designation | Plain-End Weight Wpe | Outside Diameter D | Wall thickness T | Grade | Upset Ends,for weld-on tool joints | |||
| lb/ft | kg/m | in mm | in. mm | ||||||
| 2 3/8 | 6.65 | 6.27 | 9.33 | 2.375 | 60.3 | 0.28 | 7.11 | E, X, G, S | Ext.Upset |
| 2 7/8 | 10.4 | 9.72 | 14.47 | 2.875 | 73 | 0.362 | 9.19 | E, X, G, S | Int.Upset or Ext.Upset |
| 3 1/2 | 9.5 | 8.81 | 13.12 | 3.5 | 88.9 | 0.254 | 6.45 | E | Int.Upset or Ext.Upset |
| 3 1/2 | 13.3 | 12.32 | 18.34 | 3.5 | 88.9 | 0.368 | 9.35 | E, X, G, S | Int.Upset or Ext.Upset |
| 3 1/2 | 15.5 | 14.64 | 21.79 | 3.5 | 88.9 | 0.449 | 11.4 | E | Int.Upset or Ext.Upset |
| 3 1/2 | 15.5 | 14.64 | 21.79 | 3.5 | 88.9 | 0.449 | 11.4 | X, G, S | Ext.Upset or Int.-Ext.Upset |
| 4 | 14 | 12.95 | 19.27 | 4 | 101.6 | 0.33 | 8.38 | E, X, G, S | Int.Upset or Ext.Upset |
| 4 1/2 | 13.75 | 12.25 | 18.23 | 4.5 | 114.3 | 0.271 | 6.88 | E | Int.Upset or Ext.Upset |
| 4 1/2 | 16.6 | 15 | 22.32 | 4.5 | 114.3 | 0.337 | 8.56 | E, X, G, S | Ext.Upset or Int.-Ext.Upset |
| 4 1/2 | 20 | 18.71 | 27.84 | 4.5 | 114.3 | 0.43 | 10.92 | E, X, G, S | Ext.Upset or Int.-Ext.Upset |
| 5 | 16.25 | 14.88 | 22.16 | 5 | 127 | 0.296 | 7.52 | X, G, S | Int.Upset |
| 5 | 19.5 | 17.95 | 26.7 | 5 | 127 | 0.362 | 9.19 | E | Int.-Ext.Upset |
| 5 | 19.5 | 17.95 | 26.7 | 5 | 127 | 0.362 | 9.19 | X, G, S | Ext.Upset or Int.-Ext.Upset |
| 5 | 25.6 | 24.05 | 35.8 | 5 | 127 | 0.5 | 12.7 | E | Int.-Ext.Upset |
| 5 | 25.6 | 24.05 | 35.8 | 5 | 127 | 0.5 | 12.7 | X, G, S | Ext.Upset or Int.-Ext.Upset |
| 5 1/2 | 21.9 | 19.83 | 29.52 | 5.5 | 139.7 | 0.361 | 9.17 | E, X, G, S | Int.-Ext.Upset |
| 5 1/2 | 24.7 | 22.56 | 33.57 | 5.5 | 139.7 | 0.415 | 10.54 | E, X, G, S | Int.-Ext.Upset |
| 6 5/8 | 25.2 | 22.21 | 33.04 | 6.625 | 168.3 | 0.33 | 8.38 | E, X, G, S | Int.-Ext.Upset |
| 6 5/8 | 27.72 | 24.24 | 36.06 | 6.625 | 168.3 | 0.362 | 9.19 | E, X, G, S | Int.-Ext.Upset |
