High Quality Oil Casing Pipe with API 5CT Certification Factory Supply

• After-sales Service: According to Contract
• Warranty: 1 Year
• Certification: API5CT, ISO9001, GOST, ISO14001
• Model NO.: API 5CT
• Applicable Medium: Natural Gas, Crude Oil
• Material: Steel
• Stand: API 5CT
• Tubing Od: 2 3/8" - 4 1/2" (60.3mm-114.30mm)
• Casing Od: 4 1/2"- 20" (114.3mm-508mm)
• Wall Thickness: 0. 205"- 0.635"
• Length: R1, R2.R3
• Steel Grade: J55/K55/N80/L80/P110/C95/T95/Q125/L80-13cr/P110- 1
• Transport Package: Protection Caps in Both Ends, Waterproof Paper Wra
• Specification: API5CT
• Trademark: Baori Steel
• Origin: China

Product Description

Product Description

API 5CT J55/K55/N80 Oil Casing Pipe for Petroleum Industry

Our casing pipes are manufactured in strict compliance with API 5CT standards, utilising high-grade seamless steel tubing such as J55, K55, and L80-13CR . With their exceptional crush resistance and corrosion resistance, they are specifically engineered to withstand the demanding challenges of deep wells and acidic environments, ensuring the long-term integrity and safety of the wellbore.

Specification

Product Name	Tubing and casing
Tubing Outer Diameter	2 3/8" - 4 1/2" (60.3mm-114.30mm)
Casing Outer Diameter	4 1/2"- 20" (114.3mm-508mm)
Wall Thickness	0. 205"- 0.635"
Length	R1(4.88mtr-7.62mtr), R2(7.62mtr-10.36mtr), R3(10.36mtr or longer)
Steel Grade	J55/K55/N80/L80/P110/C95/T95/Q125/L80-13CR/P110- 13CR/80S/80SS/95S/ 95SS/P110S/P110SS
Stand	API5CT
Connection Type	NU/EU/IJ/STC/BTC/LTC/PREMIUM CONNECTION
SurfaceTreatment	Corrosion proofing water based paint
Packing	Protection Caps in Both Ends, Waterproof Paper Wrapped, Two Tags
HS code	73052000

Application

Widely used in the petroleum industry

Our tubing and casing product range caters to all operational scenarios, from conventional to extreme conditions. In deep formations, P110 and higher steel grades provide rock-solid support against ultra-high pressures and geological stresses; In oil and gas fields rich in corrosive media, our specialised L80 and C90 steel grades serve as the 'anti-corrosion armour' safeguarding long-term wellbore integrity. For large-scale shale gas development, our high-connection-efficiency special thread products significantly reduce your downhole operational risks and time costs. Share your well design specifications with us, and we shall match you with the most cost-effective and reliable tubular solution."

Production Process

Company Profile

Shanghai Baori Steel Industries Co.,Ltd 

Our company is located in Shanghai Baoshan ,situated near the Port of Shanghai, offering convenient transport links.

We possess over 15 years of experience in steel production and manufacturing, and operate our own factory, enabling us to fulfil bespoke requirements for our clients.

Meanwhile, our export operations continue to expand. To date, we have exported to over 50 countries and regions, supported by a well-established export process system. Furthermore, our product quality has garnered consistent acclaim from our customers.

Our advantage

1.We operate our own manufacturing facilities, enabling us to meet production requirements and fulfil bespoke client specifications.

2.We operate four casing threading lines with an annual production capacity of 200,000 tonnes.

3.Our proprietary special buckle technology, protected by technical patents, enables us to secure a position in the global market.

4.To ensure product quality meets standard requirements, the company has established stricter internal control standards based on API specifications. Thread parameters exceed API standards by over 20%, with 100% coverage in inspection frequency.

FAQ

IF YOU HAVE OTHER QUESTION,PLEASE CONTACT US!

Q: What is the primary function of oil casing?
A: To support the wellbore walls, isolate formations, prevent blowouts, and establish a secure pathway for oil and gas extraction.
 
Q: How should one select the appropriate casing steel grade?
A: Selection depends on well depth, formation pressure, and corrosive environment. Common grades include N80 (general conditions), L80 (corrosive environments), and P110 (deep wells with high pressure).
 
Q: What is the difference between API threads and special threads?
A: API threads  offer cost-effective versatility; special threads provide superior sealing, tensile strength, and torsional resistance, suitable for high-pressure gas wells or complex well conditions.
 
Q: What key parameters are required when ordering casing?
A: Outer diameter, wall thickness, steel grade, thread type, length, and quantity. Specify whether API 5CT compliance is required.
 
Q: How to determine if casing quality meets standards?
A: Verify API certification marks and third-party inspection reports. Inspect physical markings, dimensional accuracy, thread machining quality, and non-destructive testing records.