API 5CT OCTG Seamless J55 L80 N80 Tubing Coupling

• After-sales Service: Yes
• Warranty: 1 Year
• Manufacturing Process: CNC Milling
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 2-7/8
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Product Name: Tubing Coupling
• Transport Package: Wooden Case
• Specification: 2-3/8′′, 2-7/8′′, 3-1/2′′, 4′′, 4-1/2′′
• Trademark: ZX
• Origin: China
• Package Size: 300.00cm * 300.00cm * 300.00cm
• Package Gross Weight: 8.000kg

Product Description

Product Description

All of tubing couplings are with materials of steel grade including J55, K55, N80, N80-1,N80-Q,L80,P110 and so on . The casing couplings have two types, namely NU and EU. By numerically controlled lathe and import molding cutter, the processing of thread can be finished in one time,which ensures its commonality and interchangeability. We have complete testing abilities, adopting a whole set of single testing apparatus of thread, including tape,pitch,tooth depth and profile.

 

We carry size range of 2-3/8", 2-7/8", 3-1/2", 4", and 4-1/2" in. All of our couplings meet the API

Specifications 5CT/5B.

API EUE Tubing Couplings

Designed in accordance with API 5CT/5B and are made of good seamless steel. EUE petroleum tubing coupling cover the outer diameter from 77.80mm to 141.30mm, that is bigger than the outer diameter of the non upset threaded end product. The API external-upset-end (EUE) tubing connection is widely used because it is a good, serviceable connection in most wells. The EUE joint has a designed joint strength in tension and pressure strength greater than that of the pipe body and, therefore, is considered a 100% joint efficient connection.

 

API NUE Tubing Couplings

Designed in accordance with API 5CT/5B and are made of good seamless steel. NUE tubing coupling possesses the outer diameter range from 73.02 to 132.08mm. API nonupset (NUE) tubing is used much less than EUE tubing. The cost of NUE is only slightly less than EUE, and the joint strength is substantially less. The coupling joint diameter of NUE is less than EUE, which offers some advantages when clearance is small.

Standard: API Spec 5CT, API Spec 5B

Grade: H40,J55,K55,N80-1,N80Q,L80,C90,T95,P110

Specification: OD55.88~141.3mm(1.9"~4 1/2")

Thread: EU, NU

Usage: has internal thread to join the tubing pipes which are also with thread. 

 

Raw Material Selection

Mechanical test including tensile strength

Impact test

Chemical properties control

Sulfide stress cracking test (for Material grades in C90 or T95)

Size tolerances, OD, Wall Thickness, Length and Straightness

Threads control, threads quantity per inch, threads angle etc (Premium threads option will be more rigorous)

Heat treatment

Additional markings

Material certification

Product Specification Level (PSL-2 or PSL-3)

Product Parameters

Size	Type of Thread	O.D*L (mm)	Weight(kg)
2-3/8"	NUE	73.02*107.95	1.28
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

* Other sizes and connections available on request

Packaging & Shipping

Certifications

Company Profile

Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.

Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .