3-1/2 Inch Dp Drill Pipe API 5dp

• After-sales Service: 24/7
• Warranty: 12 Months
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: 27crmo-F
• Model NO.: Boban
• Usage: Horizontal Directional Drilling Rig
• Grade: E, X, G, S
• Tool Joints: Ext Upset or Int-Ext.Upset
• Size: 2 3/8"~6 5/8"
• Transport Package: by Container or Bulk Vessel
• Specification: As per sizes
• Trademark: BOBAN & OEM
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000 PCS Per Month

Product Description

3-1/2 inch DP drill pipe API 5DP

Product Description

Drill pipes are used in applications such as DTH/ DTHR/ DR basically comprise of a steel pipe with a pin at one end and a box on the other. The job of the drill pipe is to transmit rotational torque and thrust from the drill rig rotary head to down hole drilling tools. 
According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice versa. Usually we are offering 50mm, 60mm, 76mm, 89mm, 95mm, 102mm, 114mm, 127mm, 140mm, 159mm.
Usually the threads are standard API connections, like 2 3/8" API REG thread, 3 1/2" API REG thread or API IF thread, etc. According to customers request, from 1000mm to 6000mm length of pipe are available. 

Boban provides a complete line of drill string products, including a full range offriction welded drill pipes in nominal sizes from 2-3/8" to 6-5/8" and in a wide range of wall thicknesses. Our drill pipe adopts a strict quality control regimen to ensure total quality control from initial material qualification, in-process inspection to final outgoing quality inspection. We ensure that each joint of drill pipe meets your needs for reliability, durability and performance.

Detailed Photos

Product Parameters

Size	Weight Designation lb/ft	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