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BackHome > Products > Oil Country Tubular Goods

Casing Pipe


Product:  Casing Pipe, Oil Casing, API Casing, Well Casing, Casing
Application:   Used for oil casing and tubing in oil wells as well as sidewall
Size:  OD: 114.3mm-508mm
 WT: 5-16mm
 LENGTH: R1, R2, R3
Pipe 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:  NUE, EUE, VAM, STC, LTC, BTC, XC, VAM TOP, NEW VAM,HYDRILL CS
Special Service  Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156
Accessories:   Pup Joint, Coupling, Drill Collar, Crossover etc.


   Introduction

A casing pipe is a hollow steel tube that is typically rammed into place through the earth by using a hydraulic or pneumatic jack. After being driven, the displaced soil is removed and the product pipe, or carrier pipe, is inserted inside the steel tube.

Available Sizes

Category:ERW, HFW or SMLS

Standards:API 5CT PSL1/PSL2  J55,K55,N80-1,N80-Q,API 5CT PSL1/PSL2  L80-1, L80-9Cr,L80-13Cr,C90, C95, P110, Q125

Steel Grade:H40, J55, K55, N80

Connections

API 5CT is applicable to following connections which complied with API SPEC 5B:

• SC:Short round thread casing

• LC:Long ound thread casing

• BC:Buttress thread casing

• NU: Non-upset tubing

• EU:External upset tubing


   Specification

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



   Chemical compositions of casing pipe

Standard

Grade

Chemical compositions(%)

API SPEC 5CT

J55

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

K55

0.340.39

0.200.35

1.251.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

/

/

N80

0.340.38

0.200.35

1.451.70

≤0.020

≤0.015

≤0.15

/

/

/

0.110.16

L80

0.150.22

≤1.00

0.251.00

≤0.020

≤0.010

12.014.0

≤0.20

≤0.20

/

/

P110

0.260.395

0.170.37

0.400.70

≤0.020

≤0.010

0.801.10

≤0.20

≤0.20

0.150.25

≤0.08


   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

-

-


 
 Our factory


   Packing          

There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.Our packing can meet any needs of the customers.


  • Plastic caps plugged at the two sides of pipe ends
  • Should be avoided by the steel strapping and transport damage
  • Bundled signs should be uniform and consistent
  • The same bundle(batch) of steel pipe should be came from the same furnace.
  • The steel pipe has the same furnace number, the same steel grade, the same specifications.


Looking forward to your favourable inquiry!

  Manufacture Process


   Equipment 

If you have any inquiries and questions, please contact United Steel Industry Co.,Ltd

at any time. Thanks in advance. Welcome! Email :Sales@united-steel.com

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