API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe

Product Details
Customization: Available
After-sales Service: Acceptable for Third-Party Testing
Warranty: 20 Years
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  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
  • API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
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Basic Info.

Model NO.
L80/Q125/J55/K55/N80
Technique
Hot Rolled
Material
Carbon Steel
Surface Treatment
Oiled
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape
Round
Types
Carbon Steel
MOQ
1 Ton
Process Service
Bending, Welding, Decoiling, Punching, Cutting
Transport
CFR CIF Fob
Delivery Time
5-7 Working Days
Transport Package
Standard Packaging
Specification
2.11-59.54mm(Thickness)
Origin
China
HS Code
7304293000
Production Capacity
5000ton Per Month

Product Description

API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe


Oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Each well uses several layers of casing based on different drilling depths and geological conditions.

 

Casing pipe is the major structural component of a well. The API 5CT Casing pipe is a large-diameter steel pipe that serves as the structural retainer for the walls of oil and gas wells, and typically held into place with cement.

 

API 5CT casing is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow drilling fluid to circulate and extraction to take place.

 

According to the strength of the steel itself, casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Different well conditions and well depths require different steel grades. In corrosive environments, the casing itself is also required to have corrosion resistance.



API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel PipeAPI 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
Casing Pipe Specifications
Standards:   API SPEC 5CT
Model in Common Use:   2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2″
Length Range:   R1(6.10-7.32m), R2(8.53-9.75m), R3(11.58-12.8m)
Steel Grade (Casing Grades, Tubing Grades):   J55, K55, N80-1, N80-Q, L80, P110
Type of Screw Thread:   Non upset threaded end(NUE), External upset threaded end(EUE)
Specialties
  • Threading
  • Heat treating
  • External upset
  • Drifting (Full-length, or just ends)
  • Hydrostatic Testing
  • Full third-party inspection capabilities (EMI, SEA, and Weld Line)
  • Couplings - EUE, AB Modified, turned down, special clearance couplings
  • Coating to customer specifications
  • Pup Joints

Oil Tube For Petroleum And Natural Gas Industries

Name of Pipes Specification Steel Grade Standard
  D (S) (L)    
(mm) (mm) (m)
Petroleum Casing Pipe

127-508

5.21-16.66

6-12

J55. M55. K55.
L80. N80. P110.

API Spec 5CT (8)
Petroleum Tubing

26.7-114.3

2.87-16.00

6-12

J55. M55. K55.
L80. N80. P110.

API Spec 5CT (8)
Coupling

127-533.4

12.5-15

6-12

J55. M55. K55.
L80. N80. P110.

API Spec 5CT (8)
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe

 Composition Standard of API-5CT L80 Casing Pipe
Grade C≤ Si≤ Mn≤ P≤ S≤ Cr≤ Ni≤ Cu≤ Als≤
API 5CT L80 0.15-0.22 1.00 0.25-1.00 0.020 0.010 12.0-14.0 0.20 0.20 0.020

Carbon Steel API 5CT GR. L80 Pipes Mechanical Analysis

Steel Grade Yield Strength (Mpa) Tensile Strength (Mpa)
API 5CT L80 552-655 ≥655

API 5CT GR.L80 Pipe Dimension Tolerance

Types of steel tubes Outer Diameter Wall Thickness
Cold-rolled tubes Tube sizes(mm) Tolerances(mm) Tolerances(mm)
<114.3 ±0.79 -12.5%
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe

Casing and tubing for Sour Oil and Gas Service must have a good anti-SSCC (sulfide stresscorrosion and cracking) performance in the environment where hydrogen sulfide corrosion exists.

 

Oil casing Pipe is widely used in the manufacture of structural and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in construction. Using petroleum cracking pipes to manufacture ring-shaped parts can improve material utilization, simplify the manufacturing process, save materials and processing hours, such as rolling bearing rings, jack sets, etc., which have been widely manufactured with steel pipes.


API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel PipeAPI 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe
API 5CT OCTG Oil Casing Pipe L80/Q125/J55/K55/N80 Carbon Seamless Steel Pipe Hot Rolled Steel Pipe Black Mild Steel Pipe

Q1. What are your company's main products ?

A1: Our main products are steel pipe, and sheets, coils, strips, bars and channels.

 

Q2. What are the advantages of your company ?

A2: (1) Have complete production equipment and professional technical personnel

(2) Currently, we have reached cooperation with customers from many countries and have rich export experience.

(3) Factory direct sales, the price is more competitive

 

Q3. How many coutries you already exported ?

A3: Exported to more than 20 countries mainly from Middle East, Russia, United States, Canada, Italy, Germany, Australia, Egypt, Japan, Indonesia, Bangladesh, Turkey, India, etc.

 

Q4. Can you provide sample ? Do you support OEM ?

A4: Yes. Small samples in store can be provided for free. Customized samples will take about 2-3days.

 

Q5: What's your payment terms ?

A5: By T/T(30% deposit in advance, balance 70% before shipment),, L/C after sight 30~120 days. Western Union, Paypal, or Trade Online.

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