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J55 Steel Pipe Casing Oil

As different geological conditions, underground complex stress state, pulling, pressing, bending, torsional stress acting on the combined effect of the tube, which the casing itself, the quality of the higher requirements. Once the casing itself is damaged for some reason, could lead to the whole production wells, or even scrapped.
Product Details:

J55 Steel Pipe Casing Oil

Productn Name

API Spec 5CT J55 K55 N80 L80 Seamless Steel Oil Well Casing Pipe

Product material

Carbon steel 

Standard

API SPEC 5CT, API SPEC 5D ,API SPEC 7

Grade

J55 K55 N80-1 N80-Q N80-1 C90 BG80S BG90S BG95S BG110S P110 BG110T Q125 BG140

Usage

Tubing   is used for extracting oil or gas from wells,while casing for sidewall

MOQ

5Tons/Size

Trade terms

FOB,   CFR, CIF, EXW, etc.

Payment

T/T,   L/C, etc.

Delivery time

20 ~ 30 days after receipt of deposit, ASAP

Loading Port

YanTai,  QingDao, TianJin, ShangHai port, China 

 

API SPEC 5CT for use as casing or tubing for wells

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API 5CT is a standard on the oil casing by American Petroleum Institute, mainly for the oil pipe, tubing and casing.

Peotroleum and natureal gas industies - Steel pipes for use as casing or tubing for wells. 

Standard: API SPEC 5CT

Size (mm):

· Outer Dimensions: 6.0mm ~ 219.0mm

· Wall Thickness: 1.0mm ~ 30 mm

· Length: max 12000mm 

Application: gas, water and oil transportation in both oil and natural gas.
Steel grade: J55, K55, N80, L80, P110.

Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers' requirements .

Painting: as requested.

 

As different geological conditions, underground complex stress state, pulling, pressing, bending, torsional stress acting on the combined effect of the tube, which the casing itself, the quality of the higher requirements. Once the casing itself is damaged for some reason, could lead to the whole production wells, or even scrapped.


Chemical Composition(%) of API 5CT

Grade

C≤

Si≤

Mn≤

P≤

S≤

Cr≤

Ni≤

Cu≤

Mo≤

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

0.15-0.25

0.08

0.020


Mechanical Properties of API 5CT

Steel 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

API 5CT oil casing used in oil well drilling, which is mainly used for drilling and completion of the right wall of the support, to ensure that the conduct and completion of the drilling process after the normal operation of the wells. Casing is to maintain the wells run lifeline


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