HDD Drill Pipe - Drill Bit, Drill Pipe, Drilling Rig

Kelly drill rods are widely used in oil and gas, geological exploration, and mining. It is typically available in square or hexagonal shapes, with various sizes and specifications, and can be customized to meet different drilling needs. The active drill pipe is a key component of drilling equipment, primarily used to transmit torque and propulsion force, driving the drill bit to perform drilling operations. It is usually made of high-strength alloy steel, possessing excellent wear resistance and fatigue resistance.

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

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