Oil Pipe Coupling Tubing and Casing 5 1/2 API Casing Coupling Buttress Thread

• Name: Oil Pipe Coupling Tubing and Casing 5 1/2 API Casi
• Thread: Bc LC Sc
• Grade: K55 J55 L80 N80 P110
• Model NO.: 5-1/2
• Usage: Oil Pipe
• Transport Package: Wooden Pallet
• Trademark: EASTLONG
• Origin: Puyang China
• HS Code: 7307990000
• Production Capacity: 5000 PCS One Day

Product Description

Company Profile

Tianjin Dongfanglong Machine Manufacture Co., Ltd was established in 1999 and is a national high-tech enterprise concentrating on petroleum specialized pipes, petroleum specialized drilling and production tools, and petroleum specialized automation equipment. The company has 46 engineers and highly skilled talents, over 50 independent intellectual property rights, and have created the industry's first professional e-commerce platform, the "Dongfang Yunlong E-commerce Platform". It has formed an industrial chain that integrates the design, research and development, manufacturing, sales, testing and experimentation,and technical services of petroleum machinery products and CNC automation equipment, which can meet customers' full cycle service needs for products.

Since its establishment, the company has successively passed the ISO9001 quality system, ISO14001 environmental management system, ISO45001 occupational health and safety management system certification, HSE health, safety and environmental management system certification, and integration management system certification. In 2007, the company obtained the API 5CT certificate authorized by the American Petroleum Institute and the quality supplier assessment certificate issued by BV France. With excellent system management and quality control, Dongfanglong won the "Mayor of Puyang City Quality Award";

The company takes the "Dongfang Yunlong E-commerce Platform" as its core and promotes it through multiple platforms, successfully building a petroleum equipment industry alliance and conducting domestic and international trade. Dongfanglong utilizes a large digital platform as its carrier to fully integrate customer resources, analyze customer types, expand business types, and conveniently and quickly complete cross-border electronic business. It aims to focus on the company's proprietary products, drive the sales of petroleum machinery in the industry, and quickly occupy and expand the market share of petroleum machinery products through e-commerce platform sales. By continuously cultivating and introducing sales elites, improving the official website sales platform, and increasing international promotion investment, our products are exported to 31 countries and regions such as the United States, Russia, and the United Arab Emirates.

In the future, Dongfanglong will solidly implement the new development concept, guided by the new development concept of innovation, coordination, green, openness, and sharing. It will closely focus on national policy guidance, formulate a sustainable development transformation strategy, anchor the goal of becoming a century old enterprise and striving for national glory, continuously forge ahead, and work together with people of insight from all walks of life to achieve win-win results, jointly building the dream of soaring petroleum equipment manufacturing.

Product Parameters

Descriptions and size		Type of Thread	O. D*L(mm)	Weight(kg)
Tubing Coupling	2-3/8"	NUE	73.02*107.95	1.28
	2-3/8"	EUE	77.80*123.82	1.55
	2-7/8"	NUE	88.90*130.18	2.34
	2-7/8"	EUE	93.17*130.35	2.4
	3-1/2"	NUE	107.95*142.88	3.17
	3-1/2"	EUE	114.30*146.05	4.1
	4"	NUE	120.65*146.05	4.35
	4"	EUE	127.00*152.40	4.82
	4-1/2"	NUE	132.08*155.58	4.89
	4-1/2"	EUE	141.30*158.75	6.05
Casing Coupling	4-1/2"	STC	127.00*158.75	5.23
	4-1/2"	LTC	127.00*177.80	4.15
	4-1/2"	BTC	127.00*225.42	4.55
	5"	STC	141.30*165.10	4.66
	5"	LTC	141.30*196.85	5.75
	5"	BTC	141.30*231.78	5.85
	5-1/2"	STC	153.67*172.45	5.23
	5-1/2"	LTC	153.67*203.20	6.42
	5-1/2"	STC	153.67*234.95	6.36
	6-5/8"	STC	187.71*184.15	9.12
	6-5/8"	LTC	187.71*222.25	11.34
	6-5/8"	STC	187.71*244.48	11.01
	7"	STC	194.46*187.15	8.39
	7"	LTC	194.46*228.60	10.83
	7"	STC	194.46*254.00	10.54
	7-5/8"	STC	215.90*190.50	12.3
	7-5/8"	LTC	215.90*234.95	15.63
	7-5/8"	STC	215.90*263.52	15.82
	8-5/8"	STC	244.48*196.85	16.23
	8-5/8"	LTC	244.48*254.00	21.67
	8-5/8"	STC	244.48*269.88	20.86
	9-5/8"	STC	269.88*196.85	18.63
	9-5/8"	LTC	269.88*266.70	25.45
	9-5/8"	STC	269.88*269.88	23.16
	10-3/4"	STC	298.45*203.20	20.78
	10-3/4"	STC	298.45*269.88	25.74
	11-3/4"	STC	323.85*203.20	22.64
	11-3/4"	BTC	323.85*269.88	28.03
	13-3/8"	STC	365.12*203.20	25.66
	13-3/8"	BTC	365.12*269.88	31.77

Certifications