Nanjing HB machinery Engineer Co.,Ltd

Oil drill pipe

We can supply all kinds of drill pipes that are consistent with API SPEC 5DP or SY.

Drill pipes can be made as customers�� requirements and be equipped with the same type of tool joints.

Advanced drill pipe production lines can transfer the welding parameters to the best position to ensure the quality of welding zone; the heat treatment process with the feature of internal and external cooling at the same time can make a more reliable and stable mechanical character. Application of automatic weight, length measurement and automatic spray records can ensure products�� traceability. Application of thickening and heating lines and 1250 tons of upsetting machine can ensure the thickening size meet the standard of API SPEC 5DR Using of CN furnace for whole pipe body heating and quenching, tempering machine��s advanced heat treatment process can ensure the pipe��s mechanical character. Tube hydraulic straightening machine ensures the straightness and coaxiality of pipe body.

Standard drill pipe specifications

Spec					OD of drill pipe body	Wall thickness of drill pipe	OD of welding neck	Tool joint				RSC chamfer diameter	Approximation quality
Spec					OD of drill pipe body	Wall thickness of drill pipe	OD of welding neck	OD	internal diameter of male thread	lenght of male thread��s OD	lenght of female thread��s OD	RSC chamfer diameter	Approximation quality
NO.1	NO.1	grade	upset	RSC	D_dp mm	t mm	D_te^b mm	D mm	d_p mm	L_pb mm	L_b mm	D_f mm	W_dp kg/m
NO.1	NO.1	grade	upset	RSC	A.2	-12.5%	MAX	��0.8	+0.4 -0.8	��6.4	��6.4	��0.4	Calculated
1	2	3	4	5	6	7	8	9	10	11	12	13	14
IU
4	14.00	E	IU	NC40	101.60	8.38	106.4	133.4	71.4	177.80	254.00	127.40	22.42
4	14.00	S	IU	NC40	101.60	8.38	106.4	133.4	68.3	177.80	254.00	127.40	22.76
4	14.00	G	IU	NC40	101.60	8.38	106.4	139.7	61.9	177.80	254.00	127.40	23.61
4	14.00	D	IU	NC40	101.60	8.38	106.4	139.7	50.8	177.80	254.00	127.40	24.03
4-1/2	13.75	E	IU	NC46	114.30	6.88	119.1	152.4	85.7	177.80	254.00	145.26	22.50
2-3/8	6.65	E	EU	NC26	60.32	7.11	65.1	85.7	44.5	177.80	203.20	82.90	10.45
2-3/8	6.65	X,G	EU	NC26	60.32	7.11	65.1	85.7	44.5	177.80	203.20	82.90	10.58
2-7/2	10.40	E	EU	NC31	73.02	9.19	81.0	104.8	54.0	177.80	228.60	100.41	16.25
2-7/8	10.40	X,G	EU	NC31	73.02	9.19	81.0	104.8	50.8	177.80	228.60	100.41	16.50
2-7/8	10.40	S	EU	NC31	73.02	9.19	81.0	111.1	41.3	177.80	228.60	100.41	17.19
3-1/2	9.50	E	EU	NC38	88.90	6.45	98.4	120.7	68.3	203.20	266.70	116.28	15.77
3-1/2	13.30	E	EU	NC38	88.90	9.35	98.4	120.7	68.3	203.20	266.70	116.28	20.77
3-1/2	13.30	X	EU	NC38	88.90	9.35	98.4	127.0	65.1	203.20	266.70	116.28	21.76
3-1/2	13.30	G	EU	NC38	88.90	9.35	98.4	127.0	61.9	203.20	266.70	116.28	21.90
3-1/2	13.30	S	EU	NC38	88.90	9.35	98.4	127.0	54.0	203.20	266.70	116.28	22.22
3-1/2	13.50	E	EU	NC38	88.90	11.40	98.4	127.0	65.1	203.20	266.70	116.28	24.67
3-1/2	13.50	X	EU	NC38	88.90	11.40	98.4	127.0	61.9	203.20	266.70	116.28	25.07
3-1/2	13.50	G	EU	NC38	88.90	11.40	98.4	127.0	54.0	203.20	266.70	116.28	25.38
3-1/2	13.50	S	EU	NC40	88.90	11.40	98.4	139.7	57.2	203.20	266.70	127.40	26.19
EU
4	14.00	E	EU	NC46	101.60	8.38	114.3	152.4	82.6	177.80	254.00	145.26	23.67
4	14.00	X,G	EU	NC46	101.60	8.38	114.3	152.4	82.6	177.80	254.00	145.26	24.12
4	14.00	S	EU	NC46	101.60	8.38	114.3	152.4	76.2	177.80	254.00	145.26	24.46
4-1/2	13.75	E	EU	NC50	114.30	6.88	127.0	168.3	95.3	177.80	254.00	153.99	23.65
4-1/2	16.60	E	EU	NC50	114.30	8.56	127.0	168.3	95.3	177.80	254.00	153.99	27.51
4-1/2	16.60	X,G	EU	NC50	114.30	8.56	127.0	168.3	95.3	177.80	254.00	153.99	28.07
4-1/2	16.60	S	EU	NC50	114.30	8.56	127.0	168.3	88.9	177.80	254.00	153.99	28.47
4-1/2	20.00	E	EU	NC50	114.30	10.92	127.0	168.3	92.1	177.80	254.00	153.99	32.93
4-1/2	20.00	X,G	EU	NC50	114.30	10.92	127.0	168.3	88.9	177.80	254.00	153.99	33.63
4-1/2	20.00	S	EU	NC50	114.30	10.92	127.0	168.3	76.2	177.80	254.00	153.99	34.34
4-1/2	16.60	E	IEU	NC46	114.30	8.56	119.1	168.3	82.6	177.80	254.00	145.26	27.36
4-1/2	16.60	X,G	IEU	NC46	114.30	8.56	119.1	158.8	76.2	177.80	254.00	145.26	27.73
4-1/2	16.60	S	IEU	NC46	114.30	8.56	119.1	158.8	69.9	177.80	254.00	145.26	28.04
4-1/2	20.00	E	IEU	NC46	114.30	10.92	119.1	158.8	76.2	177.80	254.00	145.26	32.94
4-1/2	20.00	X	IEU	NC46	114.30	10.92	119.1	158.8	69.9	177.80	254.00	145.26	33.69
4-1/2	20.00	G	IEU	NC46	114.30	10.92	119.1	158.8	63.5	177.80	254.00	145.26	33.97
4-1/2	20.00	S	IEU	NC46	114.30	10.92	119.1	158.8	57.2	177.80	254.00	145.26	34.23
IEU
5	19.50	E	IEU	NC50	127.00	9.19	130.2	168.3	95.3	177.80	254.00	153.99	31.79
5	19.50	X	IEU	NC50	127.00	9.19	130.2	168.3	88.9	177.80	254.00	153.99	32.58
5	19.50	G	IEU	NC50	127.00	9.19	130.2	168.3	82.6	177.80	254.00	153.99	32.95
5	19.50	S	IEU	NC50	127.00	9.19	130.2	168.3	69.9	177.80	254.00	153.99	33.60
5	19.50	E	IEU	5(1/2)FH	127.00	9.19	130.2	177.8	95.3	203.20	254.00	170.66	33.22
5	19.50	X,G	IEU	5(1/2)FH	127.00	9.19	130.2	177.8	95.3	203.20	254.00	170.66	33.61
5	19.50	S	IEU	5(1/2)FH	127.00	9.19	130.2	184.2	88.9	203.20	254.00	170.66	34.89
5	25.60	E	IEU	NC50	127.00	12.70	130.2	168.3	88.9	177.80	254.00	153.99	40.73
5	25.60	X	IEU	NC50	127.00	12.70	130.2	138.6	76.2	177.80	254.00	153.99	41.80
5	25.60	G	IEU	NC50	127.00	12.70	130.2	168.3	69.9	177.80	254.00	153.99	42.11
5	25.60	E	IEU	5(1/2)FH	127.00	12.70	130.2	177.8	88.9	203.20	254.00	170.66	42.14
5	25.60	X	IEU	5(1/2)FH	127.00	12.70	130.2	177.8	88.9	203.20	254.00	170.66	42.51
5	25.60	G	IEU	5(1/2)FH	127.00	12.70	130.2	184.2	88.9	203.20	254.00	170.66	43.35
5	25.60	S	IEU	5(1/2)FH	127.00	12.70	130.2	184.2	82.6	203.20	254.00	170.66	43.75

Tensile performance parameters

	Grade	Yield strength				Tensile strength
		min		max		min
		Psi	Mpa	Psi	Mpa	Psi	Mpa
1	E-75	75.000	517	105.000	724	100000	689
2	X-95	95.000	655	125.000	862	105000	724
	G-105	105.000	724	135.000	931	115000	793
	S-135	135.000	931	165.000	1138	145000	1000