API 5CT L80
API 5CT L80
API 5CT L80 pipe is manufactured by American Petroleum Institute (API) authorized manufacturers. API 5CT L80 is a well casing steel pipe primarily used in petroleum industries. It helps to protect the well from collapse and other damage while drilling. It is also used in the production of casing and tubing for oil and gas wells. OCTG (oil country tubular goods) refers to a family of steel pipes that are used in the oil and gas industry, including API 5CT L80. These pipes are typically used to transport oil and gas from the wellhead to the surface, as well as to carry fluids within the well. Steel pipes like API 5CT L80 are essential components of the oil and gas industry, and they play a vital role in ensuring the safety and efficiency of operations.Â
Why choose tuspipe?
Since 1998, Tianjin United Steel Pipe Co., Ltd (TUSPIPE) has been committed to supplying high-quality line pipes.
With over 500,000 tons annual production capacity, the company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto-building, water & electricity, environmental protection, mechanical engineering, infrastructure construction and etc.
TUSPIPE places a premium on product quality and rigorous product quality control. In order to maintain good product quality, the company has established a Test & Inspection Center since 2004. With a series of state-of-the-art tests and inspection equipment, the test & inspection center is able to perform the tensile tests, hydro tests, impact tests, DWTT, etc.
The applications of API 5CT L80 casing and tubing
The well casing pipe is used to support the wellbore and protect it from collapsing. The petroleum industry typically uses API 5CT L80 tubing to extract oil and gas from wells. The L80 casing and tubing are known for their high yield strength and tensile strength. The L80 grade of steel is one of the most commonly used in the oil and gas industry. This type of steel is strong and durable, making it an ideal choice for well casing and tubing applications. Additionally, the L80 grade of steel has good weldability properties, making it easy to connect pieces of pipe.
Product Description of API 5CT L80
Product Name | API 5CT L80 | |
---|---|---|
Size | O. D. | 26.67-508mm |
W. T. | 2.87-16.13mm | |
Length | R1(5.49-6.71m),R2(8.23-9.14m),R3(11.58-13.72m) | |
Type of End Finish | 1.Plain end 2.Short round thread 3.Long round thread 4.Buttress thread | |
Surface | 1.Black Painted 2.With oil 3.Bared or as per customers’ requirement | |
Standard | API 5CT | |
Application | Tube for conveying gas, water, and oil in both natural gas industries, etc. |
Chemical Composition of API 5CT L80
Group | Grade | Type | C | Mn | Mo | Cr | Ni max. | Cu max. | P max. | S max. | Si max. | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
min. | max. | min. | max. | min. | max. | min. | max. | ||||||||
2 | L80 | 1 | 0.15 | 0.22 | 0.25 | 1.00 | – | – | 12.00 | 14.00 | 0.20 | 0.20 | 0.02 | 0.03 | 1.00 |
Mechanical Analysis of API 5CT L80
API 5CT Casing Pipe Standard | API 5CT Casing Pipe Type | API 5CT Casing Pipe Tensile Strength MPa | API 5CT Casing Pipe Yield Strength MPa | Total Elongation under load % |
---|---|---|---|---|
API SPEC 5CT L80 | 1 | ≥655 | 552 ~ 655 | 0.5 |
API SPEC 5CT L80 | 9Cr | ≥655 | 552 ~ 655 | 0.5 |
API SPEC 5CT L80 | 13Cr | ≥655 | 552 ~ 655 | 0.5 |
API 5CT L80 Casing and Tubing Specifications
- Specification & Size of API 5CT L80 Tubing
DN | O. D. | Weight | W. T. | End Processing | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Non-upset coupling-thread | Upset coupling-thread | Steel Grade | |||||||||||
in | mm | lb./ft. | lb./ft. | in | mm | H40 | J55 | L80 | N80 | C90 | T95 | P110 | |
2 3/8 | 2.38 | 60.3 | 4 | – | 0.167 | 4.24 | PU | PN | PN | PN | PN | PN | – |
4.6 | 4.7 | 0.19 | 4.83 | PNU | PNU | PNU | PNU | PNU | PNU | PNU | |||
5.8 | 5.95 | 0.254 | 6.45 | – | – | PNU | PNU | PNU | PNU | PNU | |||
6.6 | – | 0.295 | 7.49 | – | – | P | – | P | P | – | |||
7.35 | 7.45 | 0.336 | 8.53 | – | – | PU | – | PU | PU | – | |||
2 7/8 | 2.88 | 73 | 6.4 | 6.5 | 0.217 | 5.51 | PNU | PNU | – | – | – | – | – |
7.8 | 7.9 | 0.276 | 7.01 | – | – | – | – | – | – | – | |||
8.6 | 8.7 | 0.308 | 7.82 | – | – | PLB | PLB | PLBE | – | PLB | |||
9.35 | 9.45 | 0.34 | 8.64 | – | – | PLB | PLB | PLBE | – | PLB | |||
10.5 | – | 0.392 | 9.96 | – | – | PLB | PLB | PLB | – | PLB | |||
11.5 | – | 0.44 | 11.18 | – | – | – | – | PLB | – | ||||
3 1/2 | 3.5 | 88.9 | 7.7 | – | 0.216 | 5.49 | PN | PN | PN | PN | PN | PN | – |
9.2 | 9.3 | 0.254 | 6.45 | PNU | PNU | PNU | PNU | PNU | PNU | PNU | |||
10.2 | – | 0.289 | 7.34 | PN | PN | PN | PN | PN | PN | – | |||
12.7 | 12.95 | 0.375 | 9.52 | – | – | PNU | PNU | PNU | PNU | PNU | |||
14.3 | – | 0.43 | 10.92 | – | – | P | – | P | P | – | |||
15.5 | – | 0.476 | 12.09 | – | – | P | – | P | P | – | |||
17 | – | 0.53 | 13.46 | – | – | P | – | P | P | – | |||
4 | 4 | 102 | 9.5 | – | 0.226 | 5.74 | PN | PN | PN | PN | PN | PN | – |
– | 11 | 0.262 | 6.65 | PU | PU | PU | PU | PU | PU | – | |||
13.2 | – | 0.33 | 8.38 | – | – | P | – | P | P | – | |||
16.1 | – | 0.415 | 10.54 | – | – | P | – | P | P | – | |||
18.9 | – | 0.5 | 12.7 | – | – | P | – | P | P | – | |||
22.2 | – | 0.61 | 15.49 | – | – | P | – | P | P | – | |||
4 1/2 | 4.5 | 114 | 12.6 | 12.75 | 0.271 | 6.88 | PNU | PNU | PNU | PNU | PNU | PNU | – |
15.2 | – | 0.337 | 8.56 | – | – | P | – | P | P | – | |||
17 | – | 0.38 | 9.65 | – | – | P | – | P | P | – | |||
18.9 | – | 0.43 | 10.92 | – | – | P | – | P | P | PLB | |||
21.5 | – | 0.5 | 12.7 | – | – | P | – | P | P | PLB | |||
23.7 | – | 0.56 | 14.22 | – | – | P | – | P | P | PLB | |||
26.1 | – | 0.63 | 16 | – | – | P | – | P | P | PLB | |||
P——Plain;N—— Non-upset coupling-thread;U—— Upset coupling-thread; L——Integral |
- Specification & Size of API 5CT L80 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 | 9.5 | 14.14 | 0.205 | 5.21 | PS | PS | – | – | – | – |
10.5 | 15.63 | 0.224 | 5.69 | – | PSB | – | – | – | – | |||
11.6 | 17.26 | 0.250 | 6.35 | – | PSLB | PLB | PLB | PLB | PLB | |||
13.5 | 20.09 | 0.290 | 7.37 | – | – | PLB | PLB | PLB | PLB | |||
15.1 | 22.47 | 0.337 | 9.56 | – | – | – | – | – | PLB | |||
5 | 5.000 | 127 | 11.5 | 17.11 | 0.220 | 5.59 | – | PS | – | – | – | – |
13 | 19.35 | 0.253 | 6.43 | – | PSLB | – | – | – | – | |||
15 | 22.32 | 0.296 | 7.52 | – | PSLB | PLB | PLB | PLBE | PLB | |||
18 | 26.79 | 0.362 | 9.19 | – | – | PLB | PLB | PLBE | PLB | |||
21.4 | 31.85 | 0.437 | 11.1 | – | – | PLB | PLB | PLB | PLB | |||
23.2 | 34.53 | 0.478 | 12.14 | – | – | – | – | PLB | – | |||
24.1 | 35.86 | 0.500 | 12.7 | – | – | – | – | PLB | – | |||
5 1/2 | 5.500 | 139.7 | 14 | 20.83 | 0.244 | 6.2 | PS | PS | – | – | – | – |
15.5 | 23.07 | 0.275 | 6.98 | – | PSLB | – | – | – | – | |||
17 | 25.3 | 0.304 | 7.72 | – | PSLB | PLB | PLB | PLBE | PLB | |||
20 | 29.76 | 0.361 | 9.17 | – | – | PLB | PLB | PLBE | PLB | |||
23 | 34.23 | 0.415 | 10.54 | – | – | PLB | PLB | PLBE | PLB | |||
26.8 | 39.88 | 0.500 | 12.7 | – | – | – | – | – | – | |||
29.7 | 44.2 | 0.562 | 14.27 | – | – | – | – | – | – | |||
32.6 | 48.51 | 0.625 | 15.88 | – | – | – | – | – | – | |||
35.3 | 52.53 | 0.687 | 17.45 | – | – | – | – | – | – | |||
38 | 56.55 | 0.750 | 19.05 | – | – | – | – | – | – | |||
40.5 | 60.27 | 0.812 | 20.62 | – | – | – | – | – | – | |||
43.1 | 64.14 | 0.875 | 22.22 | – | – | – | – | – | – | |||
6 5/8 | 6.625 | 168.28 | 20 | 29.76 | 0.288 | 7.32 | PS | PSLB | – | – | – | – |
24 | 35.72 | 0.352 | 8.94 | – | PSLB | PLB | PLB | PLBE | PLB | |||
28 | 41.67 | 0.417 | 10.59 | – | – | PLB | PLB | PLBE | PLB | |||
32 | 47.62 | 0.475 | 12.06 | – | – | PLB | PLB | PLBE | PLB | |||
7 | 7.000 | 177.8 | 17 | 25.3 | 0.231 | 5.87 | PS | – | – | – | – | – |
20 | 29.76 | 0.272 | 6.91 | PS | PS | – | – | – | – | |||
23 | 34.23 | 0.317 | 8.05 | – | PSLB | PLB | PLB | PLBE | – | |||
26 | 38.69 | 0.362 | 9.19 | – | PSLB | PLB | PLB | PLBE | PLB | |||
29 | 43.16 | 0.408 | 10.36 | – | – | PLB | PLB | PLBE | PLB | |||
32 | 47.62 | 0.453 | 11.51 | – | – | PLB | PLB | PLBE | PLB | |||
35 | 52.09 | 0.498 | 12.65 | – | – | PLB | PLB | PLBE | PLB | |||
38 | 56.55 | 0.540 | 13.72 | – | – | PLB | PLB | PLBE | PLB | |||
42.7 | 63.54 | 0.625 | 15.88 | – | – | – | – | – | – | |||
46.4 | 69.05 | 0.687 | 17.45 | – | – | – | – | – | – | |||
50.1 | 74.56 | 0.750 | 19.05 | – | – | – | – | – | – | |||
53.6 | 79.77 | 0.812 | 20.62 | – | – | – | – | – | – | |||
57.1 | 84.97 | 0.875 | 22.22 | – | – | – | – | – | – | |||
7 5/8 | 7.625 | 193.68 | 24 | 35.72 | 0.300 | 7.62 | PS | – | – | – | – | – |
26.4 | 39.29 | 0.328 | 8.33 | – | PSLB | PLB | PLB | PLBE | PLB | |||
29.7 | 44.2 | 0.375 | 9.52 | – | – | PLB | PLB | PLBE | PLB | |||
33.7 | 50.15 | 0.430 | 10.92 | – | – | PLB | PLB | PLBE | PLB | |||
39 | 58.05 | 0.500 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
42.8 | 63.69 | 0.562 | 14.27 | – | – | PLB | PLB | PLB | PLB | |||
45.3 | 67.41 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
47.1 | 70.09 | 0.625 | 15.88 | – | – | PLB | PLB | PLB | PLB | |||
51.2 | 76.19 | 0.687 | 17.45 | – | – | – | – | – | – | |||
55.3 | 80.3 | 0.750 | 19.05 | – | – | – | – | – | – | |||
8 5/8 | 8.625 | 219.08 | 24 | 35.72 | 0.264 | 6.71 | – | PS | – | – | – | – |
28 | 41.62 | 0.304 | 7.72 | PS | – | – | – | – | – | |||
32 | 47.62 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
36 | 53.57 | 0.400 | 10.16 | – | PSLB | PLB | PLB | PLBE | PLB | |||
40 | 59.53 | 0.450 | 11.43 | – | – | PLB | PLB | PLBE | PLB | |||
44 | 65.48 | 0.500 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
49 | 72.92 | 0.557 | 14.15 | – | – | PLB | PLB | PLBE | PLB | |||
9 5/8 | 9.625 | 244.48 | 32.3 | 48.07 | 0.312 | 7.92 | PS | – | – | – | – | – |
36 | 53.57 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
40 | 59.53 | 0.395 | 10.03 | – | PSLB | PLB | PLB | PLBE | – | |||
43.5 | 64.73 | 0.435 | 11.05 | – | – | PLB | PLB | PLBE | PLB | |||
47 | 69.94 | 0.472 | 11.99 | – | – | PLB | PLB | PLBE | PLB | |||
53.5 | 79.62 | 0.545 | 13.84 | – | – | PLB | PLB | PLBE | PLB | |||
58.4 | 86.91 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
59.4 | 88.4 | 0.609 | 15.47 | – | – | – | – | – | – | |||
64.9 | 96.58 | 0.672 | 17.07 | – | – | – | – | – | – | |||
70.3 | 104.62 | 0.734 | 18.64 | – | – | – | – | – | – | |||
75.6 | 112.5 | 0.797 | 20.24 | – | – | – | – | – | – | |||
10 3/4 | 10.750 | 273.05 | 32.75 | 48.74 | 0.279 | 7.09 | PS | – | – | – | – | – |
40.5 | 60.27 | 0.350 | 8.89 | PS | PSB | – | – | – | – | |||
15.5 | 67.71 | 0.400 | 10.16 | – | PSB | – | – | – | – | |||
51 | 75.9 | 0.450 | 11.43 | – | PSB | PSB | PSB | PSBE | PSB | |||
55.5 | 82.59 | 0.495 | 12.57 | – | – | PSB | PSB | PSBE | PSB | |||
60.7 | 90.33 | 0.545 | 13.84 | – | – | – | – | PSBE | PSB | |||
65.7 | 97.77 | 0.595 | 15.11 | – | – | – | – | PSB | PSB | |||
73.2 | 108.93 | 0.672 | 17.07 | – | – | – | – | – | – | |||
79.2 | 117.86 | 0.734 | 18.64 | – | – | – | – | – | – | |||
85.3 | 126.94 | 0.797 | 20.24 | – | – | – | – | – | – | |||
11 3/4 | 11.750 | 42 | 62.5 | 0.333 | 8.46 | PS | – | – | – | – | – | |
47 | 69.94 | 0.375 | 20.24 | – | – | – | – | – | – | |||
54 | 80.36 | 0.435 | 8.46 | – | – | – | – | – | – | |||
60 | 89.29 | 0.489 | 9.53 | – | – | – | – | – | – | |||
65 | 96.73 | 0.534 | 11.05 | – | – | – | – | – | – | |||
71 | 105.66 | 0.582 | 14.42 | – | – | – | – | – | – | |||
13 3/8 | 13.375 | 339.73 | 48 | 71.43 | 0.330 | 8.38 | PS | – | – | – | – | – |
54.5 | 81.1 | 0.380 | 9.65 | – | PSB | – | – | – | – | |||
61 | 90.78 | 0.430 | 10.92 | – | PSB | – | – | – | – | |||
68 | 101.19 | 0.480 | 12.19 | – | PSB | PSB | PSB | PSB | PSB | |||
72 | 107.15 | 0.514 | 13.06 | – | – | PSB | PSB | PSB | PSB | |||
16 | 16.000 | 406.4 | 65 | 96.73 | 0.375 | 9.53 | PS | – | – | – | – | – |
75 | 111.61 | 0.438 | 11.13 | – | PSB | – | – | – | – | |||
84 | 125.01 | 0.495 | 12.57 | – | PSB | – | – | – | – | |||
109 | 162.21 | 0.656 | 16.66 | – | P | P | P | – | P | |||
18 5/8 | 18.625 | 473.08 | 87.5 | 130.21 | 0.435 | 11.05 | PS | PSB | – | – | – | – |
20 | 20.000 | 508 | 94 | 139.89 | 0.438 | 11.13 | PSL | PSLB | – | – | – | – |
106.5 | 158.49 | 0.500 | 12.7 | – | PSLB | – | – | – | – | |||
133 | 197.93 | 0.635 | 16.13 | – | PSLB | – | – | – | – | |||
P——Plain;S——Short-thread;L——Long-thread;B——Buttress thread;E——Extreme thread |