Tubing And Casing,OCTG Casing Pipe,OCTG Tubing
tubing and casing,api 5ct casing,api 5ct tubing,oil well casing,octg casing pipe,octg tubing
  • Tubing And Casing

    Casing Pipe
    Outer diamater(OD):114.30-508mm
    Wall thickness(WT):5.21-16.13mm
    Tubing Pipe
    Outer Diameter (OD):48.26-114.30mm
    Wall Thickness(WT):3.18-16mm
    Length:R1, R2, R3



    Tubing And Casing
  • Description
  • Specification
  • Standard
  • Process
  • Packing
  • Inquiry Online
Description

Product Type:API Tubing,EUE Seamless Tubing；NU Seamless Tubing；Premium Tubing

Outer Diameter (OD):48.26mm-114.30mm
Wall Thickness(WT):3.18mm-16mm
Length:R1, R2, R3
Standard:API 5CT J55,N80-1,V80-Q;L80-1;L80-9Cr;L80-13Cr;C90;C95;P110,Q125
Materials:H40, J55, K55, N80, L80, C90,T95 and P110
Thread type:NUE.EUE,BAM,Special clearance,VAN TOP,NEW VAM
Application:Oil Tubing is widely used for transporting crude oil and natural gas to surface after drilling, which also bears pressure from exploration.
Production technology:Plain pipe-end upsetting- Austenite treatment-Quenching-Tempering-straightening-(Non-Destructive Testing)- Threading-Thread inspection-coupling MPI-phosphating-Coupling make up-Drifting-Hydrostatic testing-Measuring&Weight-Marking&Stenciling-Coating-Packing Casing and tubing-Transportation



Pipe Type:Oil casing, API 5CT casing,API Spec 5CT J55 K55 N80 L80 Casing Pipe;Seamless Steel Oil Well Casing Pipe
Outer diamater(OD):114.30mm-508mm
Wall thickness(WT):5.21mm-16.13mm
Length:R1; R2; R3
Gread：J55;K55;N80-Q;L80-1;L80-9Cr;L80-13Cr,C95，P10
Standard:API 5CT PSL1/PSL2  J55,K55,N80-1,N80-Q,
API 5CT PSL1/PSL2  L80-1, L80-9Cr,L80-13Cr,C90, C95, P110, Q125
Thread types:STC;LTC;BTC;VAM TOP equivalent;New VAM equivalent;CS equivalent;HSC equivalent;NUE;EUE;LTC;XC
Thread:NUE, EUE, VAM, STC, LTC, BTC, XC, VAM TOP, NEW VAM,HYDRILL CS
Application:Casing Pipe is widely used for fastening oil and gas well wall or borehold, with bigger diameter than tubing, including surface casings, technical casings and oil layer casings.


If you have any Inquiry, please don't hesitate to contact us immediately,Email:sales@union-steels.com

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


API 5CT casing 

DN

O. D.

Weight

W. T.

End Machining Form

Steel Grade

in

mm

lb/ft

kg/m

in

mm

H40

J55

L80

N80

C90

P110

K55

T95

4-1/2

4.500

114.3

9.50

14.14

0.205

5.21

PS

PS

–

–

–

–

10.50

15.63

0.224

5.69

–

PSB

–

–

–

–

11.60

17.26

0.250

6.35

–

PSLB

PLB

PLB

PLB

PLB

13.50

20.09

0.290

7.37

–

–

PLB

PLB

PLB

PLB

15.10

22.47

0.337

9.56

–

–

–

–

–

PLB

5

5.000

127

11.50

17.11

0.220

5.59

–

PS

–

–

–

–

13.00

19.35

0.253

6.43

–

PSLB

–

–

–

–

15.00

22.32

0.296

7.52

–

PSLB

PLB

PLB

PLBE

PLB

18.00

26.79

0.362

9.19

–

–

PLB

PLB

PLBE

PLB

21.40

31.85

0.437

11.10

–

–

PLB

PLB

PLB

PLB

23.20

34.53

0.478

12.14

–

–

–

–

PLB

–

24.10

35.86

0.500

12.70

–

–

–

–

PLB

–

5-1/2

5.500

139.7

14.00

20.83

0.244

6.20

PS

PS

–

–

–

–

15.50

23.07

0.275

6.98

–

PSLB

–

–

–

–

17.00

25.30

0.304

7.72

–

PSLB

PLB

PLB

PLBE

PLB

20.00

29.76

0.361

9.17

–

–

PLB

PLB

PLBE

PLB

23.00

34.23

0.415

10.54

–

–

PLB

PLB

PLBE

PLB

26.80

39.88

0.500

12.70

–

–

–

–

–

–

29.70

44.20

0.562

14.27

–

–

–

–

–

–

32.60

48.51

0.625

15.88

–

–

–

–

–

–

35.30

52.53

0.687

17.45

–

–

–

–

–

–

38.00

56.55

0.750

19.05

–

–

–

–

–

–

40.50

60.27

0.812

20.62

–

–

–

–

–

–

43.10

64.14

0.875

22.22

–

–

–

–

–

–

6-5/8

6.625

168.28

20.00

29.76

0.288

7.32

PS

PSLB

–

–

–

–

24.00

35.72

0.352

8.94

–

PSLB

PLB

PLB

PLBE

PLB

28.00

41.67

0.417

10.59

–

–

PLB

PLB

PLBE

PLB

32.00

47.62

0.475

12.06

–

–

PLB

PLB

PLBE

PLB

7

7.000

177.8

17.00

25.30

0.231

5.87

PS

–

–

–

–

–

20.00

29.76

0.272

6.91

PS

PS

–

–

–

–

23.00

34.23

0.317

8.05

–

PSLB

PLB

PLB

PLBE

–

26.00

38.69

0.362

9.19

–

PSLB

PLB

PLB

PLBE

PLB

29.00

43.16

0.408

10.36

–

–

PLB

PLB

PLBE

PLB

32.00

47.62

0.453

11.51

–

–

PLB

PLB

PLBE

PLB

35.00

52.09

0.498

12.65

–

–

PLB

PLB

PLBE

PLB

38.00

56.55

0.540

13.72

–

–

PLB

PLB

PLBE

PLB

42.70

63.54

0.625

15.88

–

–

–

–

–

–

46.40

69.05

0.687

17.45

–

–

–

–

–

–

50.10

74.56

0.750

19.05

–

–

–

–

–

–

53.60

79.77

0.812

20.62

–

–

–

–

–

–

57.10

84.97

0.875

22.22

–

–

–

–

–

–

7-5/8

7.625

193.68

24.00

35.72

0.300

7.62

PS

–

–

–

–

–

26.40

39.29

0.328

8.33

–

PSLB

PLB

PLB

PLBE

PLB

29.70

44.20

0.375

9.52

–

–

PLB

PLB

PLBE

PLB

33.70

50.15

0.430

10.92

–

–

PLB

PLB

PLBE

PLB

39.00

58.05

0.500

12.70

–

–

PLB

PLB

PLBE

PLB

42.80

63.69

0.562

14.27

–

–

PLB

PLB

PLB

PLB

45.30

67.41

0.595

15.11

–

–

PLB

PLB

PLB

PLB

47.10

70.09

0.625

15.88

–

–

PLB

PLB

PLB

PLB

51.20

76.19

0.687

17.45

–

–

–

–

–

–

55.30

80.30

0.750

19.05

–

–

–

–

–

–

8-5/8

8.625

219.08

24.00

35.72

0.264

6.71

–

PS

–

–

–

–

28.00

41.62

0.304

7.72

PS

–

–

–

–

–

32.00

47.62

0.352

8.94

PS

PSLB

–

–

–

–

36.00

53.57

0.400

10.16

–

PSLB

PLB

PLB

PLBE

PLB

40.00

59.53

0.450

11.43

–

–

PLB

PLB

PLBE

PLB

44.00

65.48

0.500

12.70

–

–

PLB

PLB

PLBE

PLB

49.00

72.92

0.557

14.15

–

–

PLB

PLB

PLBE

PLB

9-5/8

9.625

244.48

32.30

48.07

0.312

7.92

PS

–

–

–

–

–

36.00

53.57

0.352

8.94

PS

PSLB

–

–

–

–

40.00

59.53

0.395

10.03

–

PSLB

PLB

PLB

PLBE

–

43.50

64.73

0.435

11.05

–

–

PLB

PLB

PLBE

PLB

47.00

69.94

0.472

11.99

–

–

PLB

PLB

PLBE

PLB

53.50

79.62

0.545

13.84

–

–

PLB

PLB

PLBE

PLB

58.40

86.91

0.595

15.11

–

–

PLB

PLB

PLB

PLB

59.40

88.40

0.609

15.47

–

–

–

–

–

–

64.90

96.58

0.672

17.07

–

–

–

–

–

–

70.30

104.62

0.734

18.64

–

–

–

–

–

–

75.60

112.50

0.797

20.24

–

–

–

–

–

–

10-3/4

10.750

273.05

32.75

48.74

0.279

7.09

PS

–

–

–

–

–

40.50

60.27

0.350

8.89

PS

PSB

–

–

–

–

15.50

67.71

0.400

10.16

–

PSB

–

–

–

–

51.00

75.90

0.450

11.43

–

PSB

PSB

PSB

PSBE

PSB

55.50

82.59

0.495

12.57

–

–

PSB

PSB

PSBE

PSB

60.70

90.33

0.545

13.84

–

–

–

–

PSBE

PSB

65.70

97.77

0.595

15.11

–

–

–

–

PSB

PSB

73.20

108.93

0.672

17.07

–

–

–

–

–

–

79.20

117.86

0.734

18.64

–

–

–

–

–

–

85.30

126.94

0.797

20.24

–

–

–

–

–

–

11-3/4

11.750

 

42.00

62.50

0.333

8.46

PS

–

–

–

–

–

47.00

69.94

0.375

20.24

–

–

–

–

–

–

54.00

80.36

0.435

8.46

–

–

–

–

–

–

60.00

89.29

0.489

9.53

–

–

–

–

–

–

65.00

96.73

0.534

11.05

–

–

–

–

–

–

71.00

105.66

0.582

14.42

–

–

–

–

–

–

13-3/8

13.375

339.73

48.00

71.43

0.330

8.38

PS

–

–

–

–

–

54.50

81.10

0.380

9.65

–

PSB

–

–

–

–

61.00

90.78

0.430

10.92

–

PSB

–

–

–

–

68.00

101.19

0.480

12.19

–

PSB

PSB

PSB

PSB

PSB

72.00

107.15

0.514

13.06

–

–

PSB

PSB

PSB

PSB

16

16.000

406.4

65.00

96.73

0.375

9.53

PS

–

–

–

–

–

75.00

111.61

0.438

11.13

–

PSB

–

–

–

–

84.00

125.01

0.495

12.57

–

PSB

–

–

–

–

109.00

162.21

0.656

16.66

–

P

P

P

–

P

18-5/8

18.625

473.08

87.50

130.21

0.435

11.05

PS

PSB

–

–

–

–

20

20.000

508

94.00

139.89

0.438

11.13

PSL

PSLB

–

–

–

–

106.50

158.49

0.500

12.70

–

PSLB

–

–

–

–

133.00

197.93

0.635

16.13

–

PSLB

–

–

–

–

P——Plain；S——Short-thread；L——Long-thread；B——Buttress thread；E——Extreme thread

Standard

API 5CT Oil Tubing  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

-

-

API 5CT Oil Tubing 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%



 casing pipe Chemical compositions of casing pipe

Standard

Grade

Chemical compositions（％）

API SPEC 5CT

J55

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

K55

0.34～0.39

0.20～0.35

1.25～1.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

/

/

N80

0.34～0.38

0.20～0.35

1.45～1.70

≤0.020

≤0.015

≤0.15

/

/

/

0.11～0.16

L80

0.15～0.22

≤1.00

0.25～1.00

≤0.020

≤0.010

12.0～14.0

≤0.20

≤0.20

/

/

P110

0.26～0.395

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



 casing pipe Mechanical properties of casing pipe

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

-

-



Process


Packing

tubing and casing packing and shipping

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


API 5CT casing 

DN

O. D.

Weight

W. T.

End Machining Form

Steel Grade

in

mm

lb/ft

kg/m

in

mm

H40

J55

L80

N80

C90

P110

K55

T95

4-1/2

4.500

114.3

9.50

14.14

0.205

5.21

PS

PS

–

–

–

–

10.50

15.63

0.224

5.69

–

PSB

–

–

–

–

11.60

17.26

0.250

6.35

–

PSLB

PLB

PLB

PLB

PLB

13.50

20.09

0.290

7.37

–

–

PLB

PLB

PLB

PLB

15.10

22.47

0.337

9.56

–

–

–

–

–

PLB

5

5.000

127

11.50

17.11

0.220

5.59

–

PS

–

–

–

–

13.00

19.35

0.253

6.43

–

PSLB

–

–

–

–

15.00

22.32

0.296

7.52

–

PSLB

PLB

PLB

PLBE

PLB

18.00

26.79

0.362

9.19

–

–

PLB

PLB

PLBE

PLB

21.40

31.85

0.437

11.10

–

–

PLB

PLB

PLB

PLB

23.20

34.53

0.478

12.14

–

–

–

–

PLB

–

24.10

35.86

0.500

12.70

–

–

–

–

PLB

–

5-1/2

5.500

139.7

14.00

20.83

0.244

6.20

PS

PS

–

–

–

–

15.50

23.07

0.275

6.98

–

PSLB

–

–

–

–

17.00

25.30

0.304

7.72

–

PSLB

PLB

PLB

PLBE

PLB

20.00

29.76

0.361

9.17

–

–

PLB

PLB

PLBE

PLB

23.00

34.23

0.415

10.54

–

–

PLB

PLB

PLBE

PLB

26.80

39.88

0.500

12.70

–

–

–

–

–

–

29.70

44.20

0.562

14.27

–

–

–

–

–

–

32.60

48.51

0.625

15.88

–

–

–

–

–

–

35.30

52.53

0.687

17.45

–

–

–

–

–

–

38.00

56.55

0.750

19.05

–

–

–

–

–

–

40.50

60.27

0.812

20.62

–

–

–

–

–

–

43.10

64.14

0.875

22.22

–

–

–

–

–

–

6-5/8

6.625

168.28

20.00

29.76

0.288

7.32

PS

PSLB

–

–

–

–

24.00

35.72

0.352

8.94

–

PSLB

PLB

PLB

PLBE

PLB

28.00

41.67

0.417

10.59

–

–

PLB

PLB

PLBE

PLB

32.00

47.62

0.475

12.06

–

–

PLB

PLB

PLBE

PLB

7

7.000

177.8

17.00

25.30

0.231

5.87

PS

–

–

–

–

–

20.00

29.76

0.272

6.91

PS

PS

–

–

–

–

23.00

34.23

0.317

8.05

–

PSLB

PLB

PLB

PLBE

–

26.00

38.69

0.362

9.19

–

PSLB

PLB

PLB

PLBE

PLB

29.00

43.16

0.408

10.36

–

–

PLB

PLB

PLBE

PLB

32.00

47.62

0.453

11.51

–

–

PLB

PLB

PLBE

PLB

35.00

52.09

0.498

12.65

–

–

PLB

PLB

PLBE

PLB

38.00

56.55

0.540

13.72

–

–

PLB

PLB

PLBE

PLB

42.70

63.54

0.625

15.88

–

–

–

–

–

–

46.40

69.05

0.687

17.45

–

–

–

–

–

–

50.10

74.56

0.750

19.05

–

–

–

–

–

–

53.60

79.77

0.812

20.62

–

–

–

–

–

–

57.10

84.97

0.875

22.22

–

–

–

–

–

–

7-5/8

7.625

193.68

24.00

35.72

0.300

7.62

PS

–

–

–

–

–

26.40

39.29

0.328

8.33

–

PSLB

PLB

PLB

PLBE

PLB

29.70

44.20

0.375

9.52

–

–

PLB

PLB

PLBE

PLB

33.70

50.15

0.430

10.92

–

–

PLB

PLB

PLBE

PLB

39.00

58.05

0.500

12.70

–

–

PLB

PLB

PLBE

PLB

42.80

63.69

0.562

14.27

–

–

PLB

PLB

PLB

PLB

45.30

67.41

0.595

15.11

–

–

PLB

PLB

PLB

PLB

47.10

70.09

0.625

15.88

–

–

PLB

PLB

PLB

PLB

51.20

76.19

0.687

17.45

–

–

–

–

–

–

55.30

80.30

0.750

19.05

–

–

–

–

–

–

8-5/8

8.625

219.08

24.00

35.72

0.264

6.71

–

PS

–

–

–

–

28.00

41.62

0.304

7.72

PS

–

–

–

–

–

32.00

47.62

0.352

8.94

PS

PSLB

–

–

–

–

36.00

53.57

0.400

10.16

–

PSLB

PLB

PLB

PLBE

PLB

40.00

59.53

0.450

11.43

–

–

PLB

PLB

PLBE

PLB

44.00

65.48

0.500

12.70

–

–

PLB

PLB

PLBE

PLB

49.00

72.92

0.557

14.15

–

–

PLB

PLB

PLBE

PLB

9-5/8

9.625

244.48

32.30

48.07

0.312

7.92

PS

–

–

–

–

–

36.00

53.57

0.352

8.94

PS

PSLB

–

–

–

–

40.00

59.53

0.395

10.03

–

PSLB

PLB

PLB

PLBE

–

43.50

64.73

0.435

11.05

–

–

PLB

PLB

PLBE

PLB

47.00

69.94

0.472

11.99

–

–

PLB

PLB

PLBE

PLB

53.50

79.62

0.545

13.84

–

–

PLB

PLB

PLBE

PLB

58.40

86.91

0.595

15.11

–

–

PLB

PLB

PLB

PLB

59.40

88.40

0.609

15.47

–

–

–

–

–

–

64.90

96.58

0.672

17.07

–

–

–

–

–

–

70.30

104.62

0.734

18.64

–

–

–

–

–

–

75.60

112.50

0.797

20.24

–

–

–

–

–

–

10-3/4

10.750

273.05

32.75

48.74

0.279

7.09

PS

–

–

–

–

–

40.50

60.27

0.350

8.89

PS

PSB

–

–

–

–

15.50

67.71

0.400

10.16

–

PSB

–

–

–

–

51.00

75.90

0.450

11.43

–

PSB

PSB

PSB

PSBE

PSB

55.50

82.59

0.495

12.57

–

–

PSB

PSB

PSBE

PSB

60.70

90.33

0.545

13.84

–

–

–

–

PSBE

PSB

65.70

97.77

0.595

15.11

–

–

–

–

PSB

PSB

73.20

108.93

0.672

17.07

–

–

–

–

–

–

79.20

117.86

0.734

18.64

–

–

–

–

–

–

85.30

126.94

0.797

20.24

–

–

–

–

–

–

11-3/4

11.750

 

42.00

62.50

0.333

8.46

PS

–

–

–

–

–

47.00

69.94

0.375

20.24

–

–

–

–

–

–

54.00

80.36

0.435

8.46

–

–

–

–

–

–

60.00

89.29

0.489

9.53

–

–

–

–

–

–

65.00

96.73

0.534

11.05

–

–

–

–

–

–

71.00

105.66

0.582

14.42

–

–

–

–

–

–

13-3/8

13.375

339.73

48.00

71.43

0.330

8.38

PS

–

–

–

–

–

54.50

81.10

0.380

9.65

–

PSB

–

–

–

–

61.00

90.78

0.430

10.92

–

PSB

–

–

–

–

68.00

101.19

0.480

12.19

–

PSB

PSB

PSB

PSB

PSB

72.00

107.15

0.514

13.06

–

–

PSB

PSB

PSB

PSB

16

16.000

406.4

65.00

96.73

0.375

9.53

PS

–

–

–

–

–

75.00

111.61

0.438

11.13

–

PSB

–

–

–

–

84.00

125.01

0.495

12.57

–

PSB

–

–

–

–

109.00

162.21

0.656

16.66

–

P

P

P

–

P

18-5/8

18.625

473.08

87.50

130.21

0.435

11.05

PS

PSB

–

–

–

–

20

20.000

508

94.00

139.89

0.438

11.13

PSL

PSLB

–

–

–

–

106.50

158.49

0.500

12.70

–

PSLB

–

–

–

–

133.00

197.93

0.635

16.13

–

PSLB

–

–

–

–

P——Plain；S——Short-thread；L——Long-thread；B——Buttress thread；E——Extreme thread

Standard

API 5CT Oil Tubing  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

-

-

API 5CT Oil Tubing 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%



 casing pipe Chemical compositions of casing pipe

Standard

Grade

Chemical compositions（％）

API SPEC 5CT

J55

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

K55

0.34～0.39

0.20～0.35

1.25～1.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

/

/

N80

0.34～0.38

0.20～0.35

1.45～1.70

≤0.020

≤0.015

≤0.15

/

/

/

0.11～0.16

L80

0.15～0.22

≤1.00

0.25～1.00

≤0.020

≤0.010

12.0～14.0

≤0.20

≤0.20

/

/

P110

0.26～0.395

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



 casing pipe Mechanical properties of casing pipe

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

-

-



Process


Packing

tubing and casing packing and shipping

Inquiry Online
If you have any inquiries and questions, please contact Union Steel Industry Co., Ltd. at any time. Thanks in advance. Welcome!
Email Us
Follow us   facebook instagram twitter youtube linkedin

tubing and casing,api 5ct casing,api 5ct tubing,oil well casing,octg casing pipe,octg tubing

LEAVE A MESSAGE HERE

Products

Workshop

Copyright @ 2023 Union Steel Industry Co.,Ltd All Rights Reserved Privacy Policy
We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from.
Accept
Decline