OCTG Casing

Short Description:

Casing is used for lining the complete borehole which has been dug into the ground to procure oil. Similar to the drill pipe, the oil well casing pipe is also subjected to axial tension, therefore they are required to be made from high-quality strong steel material. Bestar have much experience on supply casing pipes, which will be best rate and international certificated quality. OCTG casing is large diameter pipe which are held in place in the borehole using cement.


Product Detail

Product Tags

Well Casing serves as well sidewall. Standards and Technical Conditions for Supply:API Spec 5CT ISO13680 Grade: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, ​C95, P110. Thread types:  STC, LTC, BTC, premium connection like VAM, VAM TOP, NEW VAM, CS Hydril, etc.

Uses: Well Casing serves as well sidewall.

Standards and Technical Conditions for Supply: API Spec 5CT  ISO13680

Grade: J55, K55, N80-1,N80-Q, L80-1, L80-9Cr,L80-13Cr,C95, P110.

Thread types: STC, LTC, BTC, premium connection like VAM, VAM TOP, NEW VAM, CS Hydril, etc.

Dimension: OD: 114.3-508mm WT: 5.21-16.13mm

Lengths:

Oil casing

Range 1

Range 2

Range 3

4.88~7.62

7.62~10.36

10.36~14.63

OCTG-Casing_01
OCTG-Casing_02
OCTG-Casing_03
OCTG-Casing_04

Mechanical Properties

Group

Grade

Type

Total elongation under load       % 

Yield strength   Mpa

Tensile strength min     MPa 

Hardness  max

min 

max

HRC

HBW

1

2

3

4

5

6

7

8

9

1

 J55

-

0.5

379

552

517

-

-

K55

-

0.5

379

552

655

-

-

 N80

1

0.5

552

758

689

-

-

N80

 Q

0.5

552

758

689

-

-

2

L80

1

0.5

552

655

655

23

241

L80

9Cr

0.5

552

655

655

23

241

L80

13Cr

0.5

552

655

655

23

241

C90

0.5

621

724

689

25.4

255

C95

-

0.5

655

758

724

-

-

T95

0.5

655

758

724

25.4

255

3

P110

-

0.6

758

965

862

-

-

4

Q125

All

0.65

862

1034

931

-

-

Production Process

OCTG-Casing-(2)

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