Oilfield Tubular

API 5CT Tubing

Application: used for extracing oil or gas from wells

Pipe Standard: API 5CT psl1/psl2 j55,k55,n80-1,n80-q,

OD: 48.26mm-114.3mm

WT: 3.18-16mm

Size Tolerance:

OD: <114.3mm, Tolerances: ±0.79mm

WT: -12.5%

Length: r1(4.88~7.62m);r2(7.62~10.36m);r3(10.36~14.63m)

Thread Types: nue, eue, stc, ltc, btc, xc, ,hydrill cs

Special Service: sweet service, sour service, anti-h2s, nace mr0175/iso15156

Accessories: pup joint, coupling, drill collar, crossover

Standard

Specification

API 5CT tubing is the pipe through which oil and gas flow to the surface.


To ensure a quality product as per API 5CT standard, casing and tubing are gone through a series of quality tests that include the hydro test, straightness check, welding test and evaluation etc.


Specification:

API 5CT Oil Tubing Dimension:

Label

OD (mm)

WT (mm)

Type of End-finish

Inch

NU T&C

EU T&C

IJ

H40

J55

L80

N80

C90

T95

P110

1.9

2.75

2.9

2.76

48.26

3.68

PNUI

PNUI

PNUI

PNUI

PNUI

PNUI

-

1.9

3.65

3.73

-

48.26

5.08

PU

PU

PU

PU

PU

PU

PU

1.9

4.42

-

-

48.26

6.35

-

-

P

-

P

P

-

2 3/8

4

-

-

60.32

4.24

PU

PN

PN

PN

PN

PN

-

2 3/8

4.6

4.7

-

60.32

4.83

PNU

PNU

PNU

PNU

PNU

PNU

PNU

2 3/8

5.8

5.95

-

60.32

6.45

-

-

PNU

PNU

PNU

PNU

PNU

2 3/8

6.6

-

-

60.32

7.49

-

-

P

-

P

P

-

2 3/8

7.35

7.45

-

60.32

8.53

-

-

PU

-

PU

PU

-

2 7/8

6.4

6.5

-

73.02

5.51

PNU

PNU

PNU

PNU

PNU

PNU

PNU

2 7/8

7.8

7.9

-

73.02

7.01

-

-

PNU

PNU

PNU

PNU

PNU

2 7/8

8.6

8.7

-

73.02

7.82

-

-

PNU

PNU

PNU

PNU

PNU

2 7/8

9.35

9.45

-

73.02

8.64

-

-

PU

-

PU

PU

-

2 7/8

10.5

-

-

73.02

9.96

-

-

P

-

P

P

-

3 1/2

7.7

-

-

88.9

5.49

PN

PN

PN

PN

PN

PN

-

3 1/2

9.2

9.3

-

88.9

6.45

PNU

PNU

PNU

PNU

PNU

PNU

PNU

3 1/2

10.2

-

-

88.9

7.34

PN

PN

PN

PN

PN

PN

-

3 1/2

12.7

12.95

-

88.9

9.52

-

-

PNU

PNU

PNU

PNU

PNU

3 1/2

14.3

-

-

88.9

10.92

-

-

P

-

P

P

-

3 1/2

15.5

-

-

88.9

12.09

-

-

P

-

P

P

-

4

9.5

-

-

101.6

5.74

PN

PN

PN

PN

PN

PN

-

4

10.7

11

-

101.6

6.65

PU

PU

PU

PU

PU

PU

-

4

13.2

-

-

101.6

8.38

-

-

P

-

P

P

-

4

16.1

-

-

101.6

10.54

-

-

P

-

P

P

-

4 1/2

12.6

12.75

-

114.3

6.88

PNU

PNU

PNU

PNU

PNU

PNU

-

4 1/2

15.2

-

-

114.3

8.56

-

-

P

-

P

P

-

P-Plain end; N-Non Upset;U-External upset;T&C-Threaded and coupled


Chemical Composition & Mechanical Properties:

Mechanical Properties:

Grade

Type

Total elongation under load (%)

Yield strength (min)

Yield strength (max)

Tensile strength min Mpa

Hardness Max (HRC)

Hardness Max (HBW)

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

-

-

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

P110

-

0.6

758

965

862

-

-

Q125

All

0.65

862

1034

931

-

-


Tolerance:

Pipe Types

Pipe Size (mm)

Tolerances

Hot Rolled

OD

≤159

±1.0%

>159

±1.20%

WT

≤20

±12.5%

>20

±10.0%

Cold Drawn

OD

≤30

±0.20mm

30-50

±0.30mm

>50

±0.8%

WT

≤3

+12%  -10%

>3

±10%

Packing

  • Loose + two nylon slings

    Loose + two nylon slings

  • Steel belts bundled + two nylon slings

    Steel belts bundled + two nylon slings

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