PRODUCTS
API 5CT L80 Steel Pipe
API 5CT L80 Steel Pipe
API 5CT L80 Steel Pipe
API 5CT L80 Steel Pipe
API 5CT L80 Steel Pipe
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  • API 5CT L80 Steel Pipe
  • API 5CT L80 Steel Pipe
  • API 5CT L80 Steel Pipe
  • API 5CT L80 Steel Pipe
  • API 5CT L80 Steel Pipe

API 5CT L80 Steel Pipe


Oil casing is a type of specialized pipe used in the petroleum industry to support the walls of oil and gas wells. It is primarily made of carbon steel, low-carbon alloy steel, or stainless steel. According to the API 5CT standard, common material grades include H40, J55, K55, N80, L80, C90, T95, P110, and Q125. These materials possess high strength, corrosion resistance (such as resistance to hydrogen sulfide (H₂S)), and high-pressure resistance, making them suitable for deep wells, complex geological formations, and acidic environments.


Classification:

Key words:

Detail

Product Description:

Oil casing is a type of specialized pipe used in the petroleum industry to support the walls of oil and gas wells. It is primarily made of carbon steel, low-carbon alloy steel, or stainless steel. According to the API 5CT standard, common material grades include H40, J55, K55, N80, L80, C90, T95, P110, and Q125. These materials possess high strength, corrosion resistance (such as resistance to hydrogen sulfide (H₂S)), and high-pressure resistance, making them suitable for deep wells, complex geological formations, and acidic environments.

Parameter:

API 5CT Casing specification

Label1

Label2

OD.

Nominal linear mass 

Wall thickness

Type of end-finish

mm

kg/m

mm

J55/K55

L80/C95

N80 Type1

P110

1

2

3

4

5

7

8

9

10

4-1/2

11.60

114.30

17.26

6.35

PSLB

PLB

PLB

PLB

5

15.00

127.00

19.35

7.52

PSLBE

PLBE

PLBE

PLBE

5-1/2

17.00

139.70

25.30

7.72

PSLBE

PLBE

PLBE

PLBE

6-5/8

24.00

168.28

35.72

8.94

PSLBE

PLBE

PLBE

PLBE

7

26.00

177.80

38.69

9.19

PSLBE

PLBE

PLBE

PLBE

7-5/8

33.70

193.69

50.15

10.92

/

PLBE

PLBE

PLBE

We can supply full size casing with API 5CT, Please leave a message for consultation.

API 5CT Tubing specification

Size

NU T&C

EU T&C

OD.

Wall thickness

H40

J55

L80

N80 Type1

P110

1

2

3

4

5

6

7

8

9

10

2-3/8

4.60

4.70

6.32

4.83

PNU

PNU

PNU

PNU

PNU

2-7/8

6.40

6.50

73.02

5.51

PNU

PNU

PNU

PNU

PNU

3-1/2

9.20

9.30

88.90

6.45

PNU

PNU

PNU

PNU

PNU

4

10.70

11.00

101.60

6.65

PU

PU

PU

PU

/

4-1/2

12.60

12.75

114.30

6.88

PNU

PNU

PNU

PNU

/

We can supply full size tubing with API 5CT, Please leave a message for consultation.

Chemical Composition:

Mechanical Properties:

Package:

Waterproof paper boxes and wooden crates are used for packaging; customized packaging is available.

Application description:

Oil casing is a critical infrastructure component in oil and gas well drilling and completion.  Its primary functions are to support the wellbore, isolate different geological formations to prevent collapse and leakage, and ensure mud circulation. As a consumable item, it accounts for over 70% of oil well pipe consumption. It is manufactured from high-strength carbon steel or alloy steel, with different steel grades (such as J55, N80, P110) used depending on the geology and well depth.
Core applications of oil casing:
Supporting the wellbore (preventing collapse): During drilling and after completion, it acts as a lining for the wellbore, supporting external pressure and maintaining wellbore stability.
Isolating formations: It separates different layers with varying pressures and geological characteristics (such as oil, gas, and water layers), preventing complex downhole situations.
Ensuring circulation: It provides an upward channel for drilling mud, ensuring smooth drilling operations.
Securing the wellhead: In conjunction with cement cementing, it firmly connects the pipe string to the formation.

1. High intensityDuring the oil collection process, the depth of the oil well is relatively large, requiring the useof high-strength materials to withstand high pressure and large loads.

2.Anti-corrosion
Factors such as temperature, pressure, gas, water, acid and alkali in oil production place veryhigh requirements on the corrosion resistance of oil casings.

3.Excellent sealingThe sealing performance of oil casing is one of the key factors to ensure that oil wells do notleak.
4. Easy to maintain and replace
The encrypted design is adopted between the oil casing and the pipeline, which is detachableand mobile, making it easy to replace and maintain.

About Us

Shandong Xiangtong Huiyuan Metal Materials Co., Ltd. is a trading company under the factory of Shandong QianHai metal material CO, LTD manufacturing company ,which is specializing in this field for many years. Sales to various fields at home and abroad(cars, motorcycles, industrial machinery, Bridges, railways, etc.
In order to adapt to the changing requirements,our company is positive for technical innovation. We'll try our best to become the leading enterprise for era of globalization. Thank you!

Quality Assurance

We strictly produce and inspect steel in accordance with international standards. All steel undergoes composition analysis, mechanical property testing, and visual inspection before shipment. We also provide third-party inspection reports (SGS/BV, etc.). This ensures consistent quality in every batch and meets customer project requirements.

Fast Delivery

We maintain ample inventory and can ship within approximately 15 days. We support rapid deployment of various specifications and ensure prompt delivery upon order confirmation. We partner with multiple logistics companies to ensure on-time delivery.

Customization Available

We offer steel in a variety of specifications and materials, and we support custom cuts, surface treatments, and special material customization to meet your individual needs.

After-Sales Guarantee

We are committed to providing comprehensive after-sales service. We offer returns and exchanges for quality issues, and provide technical support and user guidance to ensure a worry-free business relationship.

  • Eco-Friendly Options: We also offer eco-friendly packaging materials upon request. Please contact us if you prefer this option.
  • International Shipping: For international orders, we comply with all customs regulations and ensure proper documentation is included.
  • If you have any specific packaging requirements, please let us know, and we will do our best to accommodate your needs.

Factory

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Inquiry

Please fill in the contact information and your needs, we will arrange professionals to contact you!

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FAQ

Q

Can you send samples?


A

Of course, We can provide samples for buyer's testing free of charge, but buyers need to pay for shipping costs.

Q

What product information do I need to provide?


A

Please kindly provide the material, OD, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q

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.

Q

What about product prices information?


A

Prices various according to periodic price changes of raw materials.

Q

What ports of shipment are there?


A

Any port in China (Tianjin Qingdao Shanghai)

Q

What is your terms of payment ?


A

100% IRRECOCABLE L/C AT

30% T/T IN ADVANCE ,70% T/T BALANCE AT THE SIGHT OF COPY B/L.