Casing and Tubing Coupling with API Standard

Model NO.: 2-3/8" to 20" Material: Carbon Steel Surface Treatment: Inside Phosphating and Outside Coating Grade: J55, K55, L80, N80, P110, C90 Origin: China Connection: Female Standard: Standard Shape: Tubular Specification: 2-3/8 inch to 20 inch 1. Structure of Casing and Tubing Coupling DescriptionCasing and tubing coupling can be widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc.  It has already replaced welding fittings in most Europe countries, Asia countries, America, Australia and some other countries.

2. Main Features of Casing and Tubing Coupling The quality of our products are very good, customers are all very satisfied. We have professional service team and export experience for a lot of years, our products have exported to more than 200 countries in the world. Here you can take easy choosing your needed products.

3. Casing and Tubing Coupling Images



4. Casing and Tubing Coupling Specification

API Tubing Coupling
Descriptions and size		Type of Thread	O.D*L (mm)	Weight (kg)
Tubing Coupling	1.050	NUE	33.35*80.96	0.23
	1.050	EUE	42.16*82.55	0.38
	1.315	NUE	42.16*82.55	0.38
	1.315	EUE	48.26*88.90	0.57
	1.660	NUE	52.17*88.90	0.59
	1.660	EUE	58.88*95.25	0.68
	1.900	NUE	55.88*95.25	0.56
	1.900	EUE	63.50*98.42	0.84
	2-3/8"	NUE	73.02*107.95	1.28
	2-3/8"	EUE	77.80*132.82	1.55
	2-7/8"	NUE	88.90*130.18	2.34
	2-7/8"	EUE	93.17*133.35	2.40
	3-1/2"	NUE	107.95*142.88	3.71
	3-1/2"	EUE	114.30*146.05	4.10
	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

API Casing Coupling
Descriptions and size		Type of Thread	O.D*L (mm)	Weight (kg)
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*171.45	5.23
	5-1/2"	LTC	153.67*203.20	6.42
	5-1/2"	BTC	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"	BTC	187.71*244.48	11.01
	7"	STC	194.46*184.15	8.39
	7"	LTC	194.46*228.60	10.83
	7"	BTC	194.46*254.00	10.54
	7-5/8"	STC	215.90*190.50	12.30
	7-5/8"	LTC	215.90*234.95	15.63
	7-5/8"	BTC	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"	BTC	244.48*269.88	20.86
	9-5/8"	STC	269.88*196.85	18.03
	9-5/8"	LTC	269.88*266.70	25.45
	9-5/8"	BTC	269.88*269.88	23.16
	10-3/4"	STC	298.45*203.20	20.78
	10-3/4"	BTC	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
	16"	STC	431.80*228.6	34.91
	16"	BTC	431.80*269.88	40.28
	18-5/8"	STC	508.00*228.60	51.01
	18-5/8"	BTC	508.00*269.88	62.68
	20"	STC	533.40*228.6	43.42
	20"	LTC	533.4*292.10	57.04
	20"	BTC	533.40*269.88	50.10

5. FAQ We have organized several common questions for our clients,may help you sincerely: 1) How about your company? One of the leading manufacturers and suppliers specializing in steel pipe products in China, mainly offering four series steel pipes including welded steel pipe (ERW, SSAW, LSAW and square and rectangle pipe), seamless steel pipe, hot dipped galvanized steel pipe and steel pipe with 3 layer polythene coating. We can provide customers different specification standards e.g. ASTM A53, ASTM A106, BS1387, API 5L, API 5CT, ISO3183 and etc. Our scope of supplying covers from 1/2" to 48"  for the outside diameter of welded pipes, and 1/8" to 20" for the seamless pipes.  Other than steel pipes we are also capable of supplying a wide variety of pipeline accessories, steel pipe fittings; Valves etc. consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.

2) How to guarantee the quality of the products? We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance. 3) How long can we receive the product after purchase? In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.

Contact us if you need more details on Coupling. We are ready to answer your questions on packaging, logistics, certification or any other aspects about API Coupling、Casing and Tubing Coupling. If these products fail to match your need, please contact us and we would like to provide relevant information.

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