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API 5CT OCTG Tubing supplier


API specification 5CT is a technical standard for tubes and pipes in a system intended for use in oil wells in petroleum as well as in natural gas industries. Unlike API 5L, the API 5CT Grade L80 Pipes are classified into three product specification levels, i.e. - PSL-1, PSL-2, and PSL-3. Pipes that belong to grade L80 are heat treated after being upset. Per this standard, different grades will vary in their heat treatment processes.

API 5CT Grade L80 Pipes

 

For instance, api 5ct grade l80 type 1 Casing and Tubing must not be tempered at temperatures below 1150°F to avoid becoming brittle. Moreover, grade L80 pipes are not recommended to be cold worked after heat treatment. For an API 5CT Casing tube that has been oil quenched, a modification can be done with regards to increasing the content of carbon. One of the major benefits of using the API 5CT Casing and Tubing for the petroleum industry is because the steel alloy used can withstand corrosion from bi-products such as carbon dioxide in addition to hydrogen sulfide. Hydrogen sulfide causes tremendous stress on pipes, especially if they are welded. However, the use of seamless steel API 5CT GRADE L80 Pipes is much more resilient and can last longer as they aren’t susceptible to cracking. Under this specification, the standard API 5CT L-80 Casing Pipe does not contain sulfur and is a non-corrosive component.

ISO 11960 API 5CT OCTG and Linepipe with hydro test



Specification format of API 5CT Grade L80 Pipes

API 5CT GRADE L80 Pipes, Casing and Tubing dimensions and tolerances chart


Specification API 5CT/ISO 11960
Material L80, steel grade
Outer Diameter 4 1/2″-20″, (114.3-508mm)
Wall Thickness 1.0mm – 30 mm
Casing Dimensions 114.3 mm (4.5″) to 406.4 mm (16″)
Tubing Dimensions 26.7 mm (1.05″) to 114.3 mm (4.5″)
Length max 12000mm
Thread type SC(Short round thread), LC(Long round thread), BC(Buttress thread)
API 5L API 5L GR.42 / 46 / 52 / 56 / 60 / 65 / 70 / 80

Basic types of API 5CT GR. L80 Steel Pipe

9 5/8 Inch API 5ct n80 L80 seamless steel
9 5/8 Inch API 5ct n80 L80 seamless steel
API 5ct l80 tubing oilfield steel pipe
API 5ct l80 tubing oilfield steel pipe
API 5ct n80 l80 p110 seamless steel pipe
API 5ct n80 l80 p110 seamless steel pipe
API 5CT Grade L80 13CR Casing Steel Pipe
API 5CT Grade L80 13CR Casing Steel Pipe
API 5ct N80 l80 p110 carbon steel pipe
API 5ct N80 l80 p110 carbon steel pipe
3/8 inch API 5CT N80 L80 steel Casing pipe
3/8 inch API 5CT N80 L80 steel Casing pipe

Composition Standard of API-5CT L80 Casing Pipe

Stockist of Jindal API 5CT OCTG Casing Tubing in India, API 5CT Grade L80 Pipes in various sizes

Grade C≤ Si≤ Mn≤ P≤ S≤ Cr≤ Ni≤ Cu≤ Als≤
API 5CT L80 0.15-0.22 1.00 0.25-1.00 0.020 0.010 12.0-14.0 0.20 0.20 0.020

Carbon Steel API 5CT GR. L80 Pipes Mechanical Analysis

Steel Grade Yield Strength (Mpa) Tensile Strength (Mpa)
API 5CT L80 552-655 ≥655

API 5CT GR.L80 Pipe Dimension Tolerance

Types of steel tubes Outer Diameter Wall Thickness
Cold-rolled tubes Tube sizes(mm) Tolerances(mm) Tolerances(mm)
<114.3 ±0.79 -12.5%

API 5CT L80 Carbon Steel Line Pipes Dimensions

Wide stock of API 5ct grade l80 type 1 ERW OCTG casing and tubing, Check price list of API 5CT Casing ex Mumbai

Size Weight Outside Diameter Wall Thickness End Finish
Grade
in mm in mm J55K55 L80 N80 C90T95 P110
4 1/2 9.50 4.500 114.3 0.205 5.21 PS
10.50 0.224 5.69 PSB
11.60 0.250 6.35 PSLB PLB PLB PLB PLB
13.50 0.290 7.37 PLB PLB PLB PLB
15.10 0.337 9.56 PLB
5 11.50 5.00 127.00 0.220 5.59 PS
13.00 0.253 6.43 PSLB
15.00 0.296 7.52 PSLB PLB PLB PLBE PLB
18.00 0.362 9.19 PLB PLB PLBE PLB
21.40 0.437 11.10 PLB PLB PLB PLB
23.20 0.478 12.14     PLB  
24.10 0.500 12.70     PLB  
5 1/2 14.00 5.500 139.7 0.244 6.20 PS
15.50 0.275 6.98 PSLB
17.00 0.304 7.72 PSLB PLB PLB PLBE PLB
20.00 0.361 9.17 PLB PLB PLBE PLB
23.00 0.415 10.54 PLB PLB PLBE PLB
6 5/8 20.00 6.625 168.28 0.288 7.32 PSLB
24.00 0.352 8.94 PSLB PLB PLB PLBE PLB
28.00 0.417 10.59 PLB PLB PLBE PLB
32.00 0.475 12.06 PLB PLB PLBE PLB
7 17.00 7.00 177.80 0.231 5.87
20.00 0.272 6.91 PS
23.00 0.317 8.05 PSLB PLB PLB PLBE
26.00 0.362 9.19 PSLB PLB PLB PLBE PLB
29.00 0.408 10.36 PLB PLB PLBE PLB
32.00 0.453 11.51 PLB PLB PLBE PLB
35.00 0.498 12.65 PLB PLB PLBE PLB
38.00 0.540 13.72 PLB PLB PLBE PLB
7 5/8 24.00 7.625 193.68 0.300 7.62
26.40 0.328 8.33 PSLB PLB PLB PLBE PLB
29.70 0.375 9.52 PLB PLB PLBE PLB
33.70 0.430 10.92 PLB PLB PLBE PLB
39.00 0.500 12.70 PLB PLB PLBE PLB
42.80 0.562 14.27 PLB PLB PLB PLB
45.30 0.595 15.11 PLB PLB PLB PLB
47.10 0.625 15.88 PLB PLB PLB PLB
8 5/8 24.00 8.625 219.08 0.264 6.71 PS
28.00 0.304 7.72
32.00 0.352 8.94 PSLB
36.00 0.400 10.16 PSLB PLB PLB PLBE PLB
40.00 0.450 11.43 PLB PLB PLBE PLB
44.00 0.500 12.70 PLB PLB PLBE PLB
49.00 0.557 14.15 PLB PLB PLBE PLB
9 5/8 32.30 9.625 244.48 0.312 7.92
36.00 0.352 8.94 PSLB
40.00 0.395 10.03 PSLB PLB PLB PLBE
43.50 0.435 11.05 PLB PLB PLBE PLB
47.00 0.472 11.99 PLB PLB PLBE PLB
53.50 0.545 13.84 PLB PLB PLBE PLB
58.40 0.595 15.11 PLB PLB PLB PLB
10 3/4 32.75 10.75 273.05 0.279 7.09
40.50 0.350 8.89 PSB
15.50 0.400 10.16 PSB
51.00 0.450 11.43 PSB PSB PSB PSBE PSB
55.50 0.495 12.57 PSB PSB PSBE PSB
60.70 0.545 13.84 PSBE PSB
65.70 0.595 15.11 PSB PSB
13 3/8 48.00 13.375 339.73 0.330 8.38
54.50 0.380 9.65 PSB
61.00 0.430 10.92 PSB
68.00 0.480 12.19 PSB PSB PSB PSB PSB
72.00 0.514 13.06 PSB PSB PSB PSB
16 65.00 16 406.40 0.375 9.53
75.00 0.438 11.13 PSB
84.00 0.495 12.57 PSB
109.00 0.656 16.66 P P P P
18 5/8 87.50 18.625 473.08 0.435 11.05 PSB
20 94.00 20 508.00 0.438 11.13 PSLB
106.50 0.500 12.70 PSLB
133.00 0.635 16.13 PSLB

Inspection Method of API 5CT GR.L80 Pipe

  • Size and surface inspection
  • NDT and pressure test and third party certication
  • Hydrostatic
  • Drifting test
  • Physical and chemicail analysis
  • Hardness and pressure test
  • Electromagnetic
  • Magnetic particle
  • Ultrasonic