Casing-Dongying Jinyilai Petroleum Machinery Co.,Ltd

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Product Name: Casing

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Dongying City Jinyilai Petroleum Machinery Co., Ltd. has six automated assembly lines now, used for producing 160,000 tons of tubing and casing at all steel levels throughout the year. Our company’s tubing and casing totally follow API-5CT standard, and our company has advanced equipment, perfect technology and reliable quality.

Technical parameters of casing

Regular specification	Outer diameter OD		Theoretical weight T & C	Wall thickness		Processing type of end portion
Regular specification	Outer diameter OD		Theoretical weight T & C	Wall thickness		Steel level
	In.	mm		In.	mm	H40	J55 K55	L80 C95	N80-1 N80Q	C95 T95	P110	Q125
4 1/2″	4.50	114.30	9.5	0.21	5.21	S	S
			10.50	0.22	5.69		SB
			11.60	0.25	6.35		SLB	LB	LB	LB	LB
			13.50	0.29	7.37			LB	LB	LB	LB
			15.10	0.34	8.56						LB	LB
5″	5.00	127.00	11.50	0.22	5.59		S
			13.00	0.25	6.43		SLB
			15.00	0.30	7.52		SLB	LB	LB	LB	LB
			18.00	0.36	9.19			LB	LB	LB	LB	LB
			21.40	0.44	11.0			LB	LB	LB	LB	LB
			23.20	0.48	12.14			LB	LB	LB	LB	LB
			24.10	0.50	12.70			LB	LB	LB	LB	LB
5 1/2″	5.50	139.70	14.00	0.24	6.20	S	S
			15.50	0.28	6.98		SLB
			17.00	0.30	7.72		SLB	LB	LB	LB	LB
			20.00	0.36	9.17			LB	LB	LB	LB
			23.00	0.42	10.54			LB	LB	LB	LB	LB
6 5/8″	6.63	168.28	20.00	0.29	7.32	S	SLB

			24.00	0.35	8.94		SLB	LB	LB	LB	LB
			28.00	0.42	10.59			LB	LB	LB	LB
			32.00	0.48	12.06			LB	LB	LB	LB	LB
7″	7.00	177.80	17.00	0.23	5.87	S
			20.00	0.27	6.91	S	S
			23.00	0.32	8.05		SLB	LB
			26.00	0.36	9.19		SLB	LB	LB	LB	LB
			29.00	0.41	10.36			LB	LB	LB	LB
			32.00	0.45	11.51			LB	LB	LB	LB
			35.00	0.50	12.65			LB	LB	LB	LB	LB
			38.00	0.54	13.72
7 5/8″	7.63	193.68	24.00	0.30	7.62	S
			26.40	0.33	8.33		SLB	LB	LB	LB	LB
			29.70	0.38	9.53			LB	LB	LB	LB
			33.70	0.43	10.92			LB	LB	LB	LB
			39.00	0.50	12.70			LB	LB	LB	LB	LB
			42.80	0.56	14.27			LB	LB	LB	LB	LB
			45.30	0.60	15.11			LB	LB	LB	LB	LB
			47.10	0.63	15.88			LB	LB	LB	LB	LB
8 5/8″	8.63	219.0	24.00	0.26	6.71	S
			28.00	0.30	7.72	S	SLB
			32.00	0.35	8.94		SLB	LB	LB	LB	SLB
			36.00	0.40	10.16			LB	LB	LB	LB
			40.00	0.45	11.43			LB	LB	LB	LB
			44.00	0.50	12.70			LB	LB	LB	LB
9 5/8″	9.63	244.48	49.00	0.56	14.15			LB	LB	LB	LB	LB
			32.30	0.31	7.92	S
			36.00	0.35	8.94	S	SLB

			40.00	0.40	10.03		SLB	LB	LB	LB
			43.50	0.44	11.05			LB	LB	LB	LB
			47.00	0.47	11.99			LB	LB	LB	LB	LB
			53.50	0.55	13.84			LB	LB	LB	LB	LB
			58.40	0.60	15.11			LB	LB	LB	LB	LB
10 3/4″	10.75	273.05	32.75	0.28	7.09	S
			40.50	0.35	8.89	S	SB
			45.50	0.40	10.16		SB
			51.00	0.45	11.43		SB	SB	SB	SB	SB
			55.50	0.50	12.57			SB	SB	SB	SB
			60.70	0.55	13.84					SB	SB	SB
			65.70	0.60	15.11					SB	SB	SB
11 3/4″	11.75	298.45	42.00	0.33	8.46	S
			47.00	0.38	9.53		SB
			54.00	0.44	11.05		SB
			60.00	0.49	12.42		SB	SB	SB	SB	SB	SB
13 3/8″	13.38	399.73	48.00	0.33	8.38	S
			54.50	0.38	9.65		SB
			61.00	0.43	10.92		SB
			68.00	0.48	12.19		SB	SB	SB	SB	SB
			72.00	0.51	13.06			SB	SB	SB	SB	SB

Remarks: T & C -threaded and coupled; S-short round thread; L-long round thread; B-buttress thread

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