Customization: | Available |
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After-sales Service: | 24 Hours Service |
Warranty: | 6 Month |
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Seamless API 5CT Gr.L80 Steel Oil Casing Pipe
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.
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 |
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 |
Steel Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) |
API 5CT L80 | 552-655 | ≥655 |
Types of steel tubes | Outer Diameter | Wall Thickness | |
Cold-rolled tubes | Tube sizes(mm) | Tolerances(mm) | Tolerances(mm) |
<114.3 | ±0.79 | -12.5% |
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 | - | - | - | - |
Deep processing:
Steel pipe products can be further processed for easy use by customers.
We can provide deep processing with threads, grooves, galvanizing, painting, bending, welding and so on.
The scope of application:
Pre galvanized steel pipe are mainly used in waterworks, petrochemical industry, chemical industry, power industry,
agricultural irrigation, urban construction. For liquid transport: water supply, drainage. For gas transport: gas, water vapor,
liquefied petroleum gas. For structural use: for piling pipe, as a bridge;
1) Minimum order quantity: 20 tons
2) Price: FOB or CIF or CFR at aXin'gang port in Tianjin
3) Payment: 30% deposit in advance, the balance against the copy of B/L; or 100% L/C, etc
4) Lead Time: within 10-25 workdays normally
5) Packing: Standard seaworthy packing or as per your request .(as pictures)
6) Sample: Free sample is avaible.
7) Individual Service: can print your logo or brand name on steel pipe/carbon steel pipe/ pe coated steel pipe.
20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC: 12032mm(Lengh)x2352mm(Width)x2698mm(High)
20 feet container load 25 tons steel pipe/carbon steel pipe/ steel pipe manufacturer whose length is under 5.8m.
40 feet container load 25 tons steel pipe/carbon steel pipe/ steel pipe manufacturer whose length is under 11.8m.
Our company is a located in Jinghai County,Tianjin,we are a professional and reputable steel manufacturer and exporter in China.
We have the professional team and excellent workers aim at supply best service and products for all of our customers. producing and offering our clients welded steel pipes, galvanized steel pipes, color and galvanized steel coils other related products.Products are many exported to South America,Europe,Southeast Asia and Africa.
Since the mill was established in 2007, we have been adopting advanced production equipment to improve the quality of products,reduce the cost of producing ,we have the good production environment now, covers an area of 15,000 square meters with advanced production equipment,precision testing instruments.
Our factory has the annual production capacity Generally, our products are widely applied in construction, bridge, car manufacturing, electrical installation and mining.