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API 5CT Steel Pipe

API is an acronym for the American Petroleum Institute and is considered the most authoritative and comprehensive principle in the oil and gas industry. API 5B and API 5CT are mainly used for oil casing. API 5CT oil casing can be divided into seamless steel pipe and welded steel pipe.

Classification :

Carbon Steel Pipe

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PRODUCT DETAILS

API 5CT Steel Pipe Description

API 5CT is a standard technical specification of steel pipes for casing and tubing in oil or gas industries. It can be used in oil or gas drilling and conveying. Commonly used oilfield API-5CT casing steel grades are J55, K55, N80-1, N80Q, P110. Casings are mostly used in oil well drilling. According to the API-5CT standard, pipes can be divided into STC (short thread), LTC (long thread) and BTC (support thread) and their joints.

Product Parameters

Product Name	API 5CT Steel Pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

Grade	C≤	Si≤	Mn≤	P≤	S≤	Cr≤	Ni≤	With:	V≤	Als≤
API 5CT J55	0.34-0.39	0.20-0.35	1.25-1.50	0.020	0.015	0.15	0.20	0.20	/	0.020
API 5CT K55	0.34-0.39	0.20-0.35	1.25-1.50	0.020	0.015	0.15	0.20	0.20	/	0.020
API 5CT N80	0.34-0.38	0.20-0.35	1.45-1.70	0.020	0.015	0.15	/	/	0.11-0.16	0.020
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
API 5CT J P110	0.26-035	0.17-0.37	0.40-0.70	0.020	0.010	0.80-1.10	0.20	0.20	0.08	0.020

Mechanical Properties

Grade	Yield Strength(Mpa)	Tensile Strength(Mpa)
API 5CT J55	379-552	≥ 517
API 5CT K55	≥ 655	≥ 517
API 5CT N80	552-758	≥ 689
API 5CT L80	552-655	≥ 655
API 5CT P110	758-965	≥ 862

Scope of Application

API 5CT oil casing is mainly used to transport oil, natural gas, coal gas, water and other liquids, gases.

Standard of carbon steel pipe

API 5L	for use in conveying gas, water, and oil in the natural gas and oil industries, and covers seamless and welded steel line pipe.
API 5CT	for casing and tubing
ASTM A53	for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A106	for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A179	for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A192	for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
ASTM A213	for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A252	for Welded and Seamless Steel Pipe Piles
ASTM A333	for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness
ASTM A672	for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
ASTM A335	for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
DIN 17175	seamless steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.
DIN 1629	specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.
DIN 2391	for Cold Drawn High Precision Seamless Tube
DIN 2458	Welded Steel Pipes in Unalloyed and Low Alloy Steels for Supply Purposes
EN 10210	Seamless steel tubes for pressure purposes
BS 3059	Steel boiler and superheater tubes
JIS G3454	Carbon steel pipes for pressure service

PACKING AND SHIPPING

We have our own transportation fleet with the most convenient transportation and timely delivery.The company's products are exported to more than 70 countries and regions in the world, including Europe, America, Germany, South Korea, Indonesia, Bangladesh, etc.

FACTORY WORKSHOP

We are a steel manufacturer with a long history and reputation for excellence. Since our establishment in 2018, we have always been committed to providing customers with the highest quality and most efficient steel products and steel deep processing services to meet their needs in various engineering projects.

CUSTOMER VISIT

In the future development, we will continue to uphold the concepts of professionalism, integrity, innovation and unity, continuously improve product quality and service levels, and provide customers with more high-quality and efficient steel products and services. We look forward to working with you to create a better future!

APPLICATION AREAS

Our product range covers various specifications of steel plates, steel sections, steel pipes, etc., which are widely used in construction, bridges, machinery, ships, oil, natural gas, and other fields. We always adhere to strict quality management to ensure that every product meets national standards and customer requirements.

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Q5:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q6:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.