Oil drill pipe of API 5DP API standerd (alloy steel E.X.G.S) OD :2-3/8,2-7/8,3-1/2,4,4-1/2,5(inch) Upset:IU,EU,IEU We are factory specializing in the manufacture and export of drill pipe, drill collars and drilling joints (API and other standerds) for more than six years. We have profuse designs with series quality grade, and expressly, our price is very competitive because we are manufactory, we are the source..  Having built up a good reputation, we are renowned for our reliable products, competitive prices and fast order delivery.we have got the citification of the ISO9001 ,we will get the  API citification in the end of the year, we are always insisting on the slogan of "Creativity, Quality First, Satisfy Clients".oil drill pipes:drilling pipeStandard: API 7 and API spec. 5DSpecification: O.D 2 3/8, 3 1/2, 4, 4 1/2, 5, 5 1/2,6 5/8Steel Grade: E75, X95, G105, S135Length:R1: 5.490-6.71R2: 8.23-9.71R3: 11.58-13.72Internal Coating: TK34, TC2000, TC3000Hardbanding: ARNCO 100XT, 200XT, &300XT, BOTN3000, ARMACORMApplication: using for oil well drillingO.D.GradeWall ThicknessUpset Ends,For welded-on Tool JointsTool Joint

Drill Pipe (E.X.G.S)
Size (inch)	WeightDesignation	Calculated Plain-End weight			Outside Diam.		Wall Thickness
		Lb/ft		kg/m	Inch	mm	Inch	mm
2-3/8	6.65	6.26	9.32		2.375	60.3 mm	0.280	7.11 mm
2-7/8	10.40	9.72	14.48		2.875	73.0 mm	0.362	9.19 mm
3-1/2	9.50	8.81	13.12		3.500	88.9 mm	0.254	6.45 mm
3-1/2	13.30	12.31	18.34		3.500	88.9 mm	0.368	9.35 mm
3-1/2	15.50	14.63	21.79		3.500	88.9 mm	0.449	11.40 mm
4	14.00	12.93	19.26		4.000	101.6 mm	0.330	8.38 mm
4-1/2	13.75	12.24	18.23		4.500	114.3 mm	0.271	6.88 mm
4-1/2	16.60	14.98	22.31		4.500	114.3 mm	0.337	8.56 mm
4-1/2	20.00	18.69	27.84		4.500	114.3 mm	0.430	10.92 mm
5	16.25	14.87	22.15		5.000	127.0 mm	0.296	7.52 mm
5	19.50	17.93	26.71		5.000	127.0 mm	0.362	9.19 mm
5	25.60	24.03	35.79		5.000	127.0 mm	0.500	12.70 mm

 Should any of these items be of interest to you, please let us know, We will be happy to give you more details. As a very active manufactures, we can  develop new designsaccording to our costomers 

US API 5DP certificated S135 2-3/8" Drill Pipes