Introduction to dth drill pipe

The DTH drill pipe consist of pipe and two adapters, box and pin. We use high strength and well-resistance alloy steel, inserting of high tensile seamless pipe, and according to different drilling depth, we can offer various thickness of pipe and material for customers’requirements.

DTH drill pipe Feature

• Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm

• Length: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm

• Thread: 2 3/8’’ API REG, 2 7/8’’ API REG, 3 1/2’’ API REG, 4 1/2’’ API REG，2 3/8″ API IF, 3 1/2″ API IF; BECO 6”, BECO 8”

• Wall thickness: 5.5mm/6.5mm/7.5mm/8.5mm/10mm

• Other spaecial size can be customized by customer’s drawing.

• Advanced heat treatment technology and friction welding mahcine.

Specifications

Rod dia		Rod length	Thickness	Connect thread	Wrench flats
(inch)	(mm)	(mm)	(mm)		(mm)
3	76	1000-6000	5	API2 3/8”REG	57/64.5
3	76	1000-9000	8	API2 3/8”REG	57/64.5
3 1/2	89	1000-6000	6	API2 3/8”REG	70/64
3 1/2	89	1000-9600	8	API2 3/8”REG	70/64
4	102	1000-9000	10	API2 3/7”REG	76/89
4 1/2	114	1500-7620	6	API3 1/2”REG	89/95
4 1/2	114	1500-9140	8	API3 1/2”REG	89/95
4 1/2	114	1500-9140	10	API3 1/2”REG	89/95
4 1/2	114	1500-9140	18	API3 1/2”REG	89/95
5	127	1500-9500	12	API3 1/2”REG	89
5	127	1500-9500	14	API3 1/2”REG	89
5	127	1500-9500	18	API3 1/2”REG	89
5 1/2	140	1500-9500	9	API4 1/2”REG or 4’FH	114
5 1/2	140	1500-9500	10	API4 1/2”REG or 4’FH	114
5 1/2	140	1500-9500	12	API4 1/2”REG or 4’FH	114