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Drill pipe

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Product Introduction

Trenchless drill pipe is mainly used in horizontal directional drilling pipeline crossing and laying engineering. The pipe body is made of special materials conforming to API standard with stable performance. The pipe end thickening conforms to API5DP standard. The steel grade of the thickened pipe body can reach G105 or S135. The joint is made of rough forging. The quenching and tempering heat treatment after rough machining, the surface nitriding treatment after finishing, and the double shoulder high torsion joint thread adopts the internal and external composite shoulder structure design, and all by precision CNC lathe processing. The tight distance of the thread has been strictly guaranteed. Compared with the thread of the same specification, it has higher tensile strength and torsional yield strength. All threads are equipped with thread gauges in line with international standards, so the performance of the drill pipe produced is stable and reliable.
We can not only produce trenchless friction welding drill pipes of different materials, lengths, diameters and wall thicknesses, but also customize drill pipes according to the material, length, wall thickness and thread required by customers.

The company has many advanced CNC lathes, friction welding machines, pipe end upsetting and thickening machines, and complete production equipment. It has established a quality management system in accordance with the ISO9001. Professional system management personnel have conducted many trainings for all employees. The quality management system Perfect and effective operation. From the signing of the order to the inspection and delivery of the finished product, we use a variety of identification methods such as labeling, lettering, painting and recording all the data to ensure the traceability of the product. Equipped with a variety of specifications of thread testing gauges, pitch testing instruments, taper testing equipment, flaw detection equipment, hardness testing equipment, with the required physical and chemical testing equipment, can be a full range of mechanical performance testing of drilling tools as required.
With sincere cooperation, reliable quality and high-quality service as the enterprise concept, we should improve the level of self-management, adjust the market layout, enhance the scientific and technological content of products, solve the needs of customers, and make customers feel at ease in buying and using.

Outer diameter of pipe body		Steel grade	Welding form	Thread model	Tube wall thickness		Joint outer diameter		Drill pipe length	torque	minimum bend radius	Right angle bending length	Maximum bending angle	Maximum inclination angle
in	mm				in	mm	in	mm	mm	Nm	m	m		%
1.98	50	S135	friction welding	WLD50	0.256	6.5	2.1	53	2000	3000	32	50	3.6	6
1.98	50	S135	friction welding	WLD50	0.256	6.5	2.1	53	2500	3000	29	46	4.9	8
1.98	50	S135	friction welding	WLD50	0.256	6.5	2.1	53	3000	3000	29	46	5.9	10
2.375	60	S135	friction welding	WLD60	0.279	7.1	2.68	68	2000	6500	33	52	3.5	6
2.375	60	S135	friction welding	WLD60	0.279	7.1	2.68	68	2500	6500	33	52	4.3	7
2.375	60	S135	friction welding	WLD60	0.279	7.1	2.68	68	3000	6500	33	52	5.2	9
2.875	73	S135	friction welding	NC23	0.315	8	3.21	82	3000	13000	45	71	3.8	6
2.875	73	S135	friction welding	NC23	0.315	8	3.21	82	4000	13000	45	71	5.1	9
3	76	S135	friction welding	NC26	0.355	9	3.45	88	3000	16000	45	71	3.8	6
3	76	S135	friction welding	NC26	0.355	9	3.45	88	4500	16000	45	71	5.7	10
3.25	83	S135	friction welding	WLD83	0.355	9	3.63	92	3000	18000	65	102	2.6	4
3.25	83	S135	friction welding	WLD83	0.355	9	3.63	92	4500	18000	65	102	4.0	7
3.5	89	S135	friction welding	NC31	0.368	9.35	4.15	105	3000	24000	85	133	2.0	3
3.5	89	S135	friction welding	NC31	0.368	9.35	4.15	105	4500	24000	80	126	3.2	5
3.5	89	S135	friction welding	NC31	0.368	9.19	4.15	105	6000	24000	80	126	4.3	7
4	102	S135	friction welding	NC38	0.362	9.19	5	127	6000	48000	98	154	3.5	6
4.5	114	S135	friction welding	NC38	0.362	9.19	5	127	6000	64000	110	173	3.1	5
4.5	114	S135	friction welding	NC46	0.362	9.19	6.18	157	6000	64000	110	173	3.1	5