API 5CT J55 Seamless oil Casing and tubing,OTCG casing R3, 13-3/8 Inch

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API 5CT J55 Seamless oil Casing and tubing,OTCG casing R3, 13-3/8 Inch

API 5ct j55 casing and tubing

API 5ct j55 casing and tubing

 API 5CT casing and tubing

1)Sizes (O.D. x W.T): from 2 3/8″-4 1/2″ X 0.167″-0.63″

2)Standard: API SPEC 5CT.

3)Steel Grade: J55, K55, N80,L80-1,P110

Casing and Coupling
API 5CT GRADE: J55/K55/N80-1/N80-Q/L80/P110/P110 HC

Outside diameter(mm)

Wall thickness(mm)

Φ114.3

5.69

6.35

7.37

8.56

Φ127

7.52

9.19

11.1

12.14

12.7

Φ139.7

6.98

7.72

9.17

10.54

12.7

14.27

15.87

Φ168.28

7.32

8.94

10.59

12.06

Φ177.8

8.05

9.19

10.36

11.51

12.65

13.72

Φ219

Above 8

Φ244.5

Above 8

Φ273

Above 8
B. Tubing and Coupling
API 5CT GRADE: J55/K55/N80-1/N80-Q/L80/P110/P110 HC

Outside diameter(mm)

Wall thickness(mm)

Φ60.33

4.24

4.83

6.45

7.49

8.53

Φ73.03

5.51

7.01

7.82

8.64

9.96

Φ88.9

5.49

6.45

7.34

9.52

10.92

Φ101.6*

6.65

8.38

10.54

12.7

Φ114.3

6.88

8.56

9.65

10.92

12.70

J55

General purpose manufactured to API specification 5CT. Similar to K55, except that the minimum tensile strength is lower.

Available in casing dimensions of 114.3 mm (4.5″) to 508 mm (20″)

Available in tubing dimensions of 26.7 mm (1.05″) to 114.3 mm (4.5″)

Mechanical Properties of API 5CT casing and tubing

Standard codesModels of steel tubesTensite strength(MPa)Yield strength(MPa)Elongation(%)Hardness
API SPEC 5CTJ55≥517379~552check the table
K55≥517≥655
N80≥689552~758
L80(13Cr)≥655552~655≤241HB
P110≥862758~965

 

applications of API 5CT casing and tubing: 

Structure, electric power transmission tower projects, piling, water, oil & gas pipeline engineering,  mechanical industry, municipal projects, roads and its auxiliary facilities, etc.

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