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API-5CT Oil Casing Pipe (4)
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API-5CT Oil Casing Pipe (4)

Home Minerals & Metallurgy API-5CT Oil Casing Pipe (4)
2 year ago
23 0
Carbon Steel Pipe API 5CT Seamless Steel Pipe Oil Casing J55/K55/N80/L80/C90
Tianjin YF Steel Co., Ltd
2 year year
Product details

API Petroleum Casing
The standard of api petroleum casing is api5l is the American Petroleum Institute standards, general petroleum casing export standards are based on this, so it is called api petroleum casing, api petroleum casing in accordance with the material points mainly k55 petroleum casing, j55 petroleum casing, n80 petroleum casing, p110 petroleum casing, etc., petroleum casing buckle including short round buckle (stc), long round buckle (ltc), partial trapezoidal (btc) the most important and most common on these three kinds of buckle, in addition to airtight buckle, threaded buckle and other special buckle. (ltc), partial trapezoidal (btc) the most important and most common on these three, in addition to airtight buckle, threaded buckle and other special buckle shape. api oil casing main production base in north China, oil casing can be divided into seamless and welded pipe, the price of seamless pipe than the welded pipe is expensive, oil casing material than the other ordinary carbon steel pipe material in the mechanical properties and mechanical properties. The material of petroleum casing is better than other ordinary carbon steel pipes in terms of mechanical and mechanical properties, which is widely used in the field of oil drilling. The main customers of petroleum casing are located in Southeast Asia, East Asia, the Middle East, West Asia, Latin America and other regions.


1. Specification range: Outer diameter: 42.16mm to 510.0mm
3.56MM-16MM
2. Material: H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr,
P110, Q125, etc.
3. Standard: API 5CT, GB, ISO11960, GOST.
4. Threaded connection: NU, EU, IJ
5.Length: R1,R2,R3
6. Testing: API 5CT and 5B non-destructive testing and other related regulations
7. Type: seamless pipe

API-5CT Oil Casing Pipe

API-5CT Oil Casing Pipe

Mechanical property:

Standard Model number Tensile strength (MPa) Yield strength (MPa) Durometer
API SPEC 5CT J55 ≥517 379~552  
K55 ≥517 ≥655  
N80 ≥689 552~758  
L80(13Cr) ≥655 552~655 ≤241HB
P110 ≥862 758~965  

Chemical composition:
Standard Model number Chemical composition (%)
C Si Mn P S Cr Ni Cu Mo V Als
API SPEC 5CT J55K55 (37Mn5) 0.34~0.39 0.20~0.35 1.25~1.50 ≤0.020 ≤0.015 ≤0.15 ≤0.20 ≤0.20 / / ≤0.020
N80 (36 Mn2V) 0.34~0.38 0.20~0.35 1.45~1.70 ≤0.020 ≤0.015 ≤0.15 / / / 0.11~0.16 ≤0.020
L80(13Cr) 0.15~0.22 ≤1.00 0.25~1.00 ≤0.020 ≤0.010 12.0~14.0 ≤0.20 ≤0.20 / / ≤0.020
P110 (30CrMo) 0.26~0.35 0.17~0.37 0.40~0.70 ≤0.020 ≤0.010 0.80~1.10 ≤0.20 ≤0.20 0.15~0.25 ≤0.08 ≤0.020

Length range:
Lengths
project range 1 range 2 range 3
oil pipe 6.10-7.32m 8.53-9.75m -
casing 4.88-7.62m 7.62-10.36m 10.36-14.63m

Description: oil pipe
Standard: API SPEC 5CT, API SPEC 5B, ISO 11960
Uses: Tubing is used to extract oil or gas from oil wells.
Oil pipe specifications:
Size code Weight Code outer diameter Thickness End machining form
Steel grade
unthickened thickened in mm in mm J55 L80-1 N80 C90 T95 P110
1.900" 2.40 - 1.900 48.26 0.125 3.18 PI - - - - -
2.75 2.90 1.900 48.26 0.145 3.68 PNUI PNUI PNUI PNUI PNUI -
3.65 - 1.900 48.26 0.200 5.08 PU PU PU PU PU PU
2 3/8" 4.00 - 2.375 60.32 0.167 4.24 PN PN PN PN PN -
4.00 4.70 2.375 60.32 0.190 4.83 PNU PNU PNU PNU PNU -
5.80 5.95 2.375 60.32 0.254 6.45 - PNU PNU PNU PNU PNU
6.60 - 2.375 60.32 0.259 7.49 - P - P P PNU
7.35 7.45 2.375 60.32 0.336 8.53 - PU - PU PU -
2 7/8" 6.40 6.50 2.875 73.02 0.217 5.51 PNU PNU PNU PNU PNU -
7.80 7.90 2.875 73.02 0.276 7.01 - PNU PNU PNU PNU PNU
8.60 8.70 2.875 73.02 0.308 7.82 - PNU PNU PNU PNU PNU
9.35 9.45 2.875 73.02 0.340 8.64 - PU - PU PU PNU
10.50 - 2.875 73.02 0.392 9.96 - P - P P -
11.50 - 2.875 73.02 0.440 11.18 - P - P P -
3 1/2" 7.70 - 3.500 88.90 0.216 5.49 PN PN PN PN PN -
9.20 9.30 3.500 88.90 0.254 6.54 PNU PNU PNU PNU PNU -
10.20 - 3.500 88.90 0.289 7.34 PN PN PN PN PN PNU
12.70 12.95 3.500 88.90 0.375 9.52 - PNU PNU PNU PNU -
14.30 - 3.500 88.90 0.430 10.92 - P - P P PNU
15.50 - 3.500 88.90 0.476 12.00 - P - P P -
17.00 - 3.500 88.90 0.530 13.46 - P - P P -
4" 9.50 - 4.000 101.60 0.226 5.74 PN PN PN PN PN -
10.70 11.00 4.000 101.60 0.262 6.65 PU PU PU PU PU -
4 1/2" 12.60 12.75 4.500 114.30 0.271 6.88 PNU PNU PNU PNU PNU -
15.20 - 4.500 114.30 0.337 8.56 - P - P P -
17.00 - 4.500 114.30 0.380 9.65 - P - P P -
18.90 - 4.500 114.30 0.430 10.92 - P - P P -
21.50 - 4.500 114.30 0.500 12.70 - P - P P -
23.70 - 4.500 114.30 0.560 14.22   P   P P -
26.10 - 4.500 114.30 0.630 16.00 - P - P P -
Note: P - flat head; N - no thickening; U - external thickening; T&C - turning thread with coupling; I - integral joint.

Description: Casing
Standard: API SPEC 5CT, API SPEC 5B, ISO 11960
Casing specifications:
Size code Weight code Outer diameter Thickness End machining form
Steel grade
in mm in mm J55
K55 		L80-1 N80 C90 C95 T95 P110 M65
4 1/2" 9.50 4.500 114.30 0.205 5.21 PS - - - - - - -
10.50 4.500 114.30 0.224 5.69 PSB - - - - - - -
11.60 4.500 114.30 0.250 6.35 PSLB PLB PLB PLB PLB PLB PLB PLB
13.50 4.500 114.30 0.290 7.37 - PLB PLB PLB PLB PLB PLB PLB
15.10 4.500 114.30 0.337 8.56 - - - - - - PLB -
5" 11.50 5.000 127.00 0.220 5.59 PS - - - - - - -
13.00 5.000 127.00 0.253 7.52 PSLB - - - - - - -
15.00 5.000 127.00 0.296 9.19 PSLB PLB PLB PLB PLB PLB PLB PLB
18.00 5.000 127.00 0.362 9.19 - PLB PLB PLB PLB PLB PLB PLB
21.40 5.000 127.00 0.437 11.10 - PLB PLB PLB PLB PLB PLB PLB
23.20 5.000 127.00 0.478 12.14 - PLB PLB PLB PLB PLB PLB PLB
24.10 5.000 127.00 0.500 12.70 - PLB PLB PLB PLB PLB PLB PLB
5 1/2" 14.00 5.500 139.70 0.244 6.20 PS - - - - - - -
15.50 5.500 139.70 0.275 6.98 PSLB - - - - - - -
17.00 5.500 139.70 0.304 7.72 PSLB PLB PLB PLB PLB PLB PLB PLB
20.00 5.500 139.70 0.361 9.17 - PLB PLB PLB PLB PLB PLB PLB
23.00 5.500 139.70 0.415 10.54 - PLB PLB PLB PLB PLB PLB PLB
26.80 5.500 139.70 0.500 12.70 - - - P - P P P
29.70 5.500 139.70 0.562 14.27 - - - P - P P P
32.60 5.500 139.70 0.625 15.88 - - - P - P P P
35.30 5.500 139.70 0.687 17.45 - - - P - P P P
38.00 5.500 139.70 0.750 19.05 - - - P - P P P
40.50 5.500 139.70 0.812 20.62 - - - P - P P P
43.10 5.500 139.70 0.875 22.22 - - - P - P P P
6 5/8" 20.00 6.625 168.28 0.288 7.32 PSLB - - - - - - -
24.00 6.625 168.28 0.352 8.94 PSLB PLB PLB PLB PLB PLB PLB PLB
28.00 6.625 168.28 0.417 10.59 - PLB PLB PLB PLB PLB PLB PLB
32.00 6.625 168.28 0.475 12.06 - PLB PLB PLB PLB PLB PLB PLB
7" 20.00 7.000 177.80 0.272 6.91 PS - - - - - - PS
23.00 7.000 177.80 0.317 8.05 PSLB PLB PLB PLB PLB - - PLB
26.00 7.000 177.80 0.362 9.19 PSLB PLB PLB PLB PLB PLB PLB PLB
29.00 7.000 177.80 0.408 10.36 - PLB PLB PLB PLB PLB PLB PLB
32.00 7.000 177.80 0.453 11.51 - PLB PLB PLB PLB PLB PLB PLB
35.00 7.000 177.80 0.498 12.65 - PLB PLB PLB PLB PLB PLB PLB
38.00 7.000 177.80 0.540 13.72 - PLB PLB PLB PLB PLB PLB PLB
7 5/8" 26.40 7.625 193.68 0.328 8.33 PSLB PLB PLB PLB PLB PLB PLB -
29.70 7.625 193.68 0.375 9.52 - PLB PLB PLB PLB PLB PLB PLB
33.70 7.625 193.68 0.430 10.92 - PLB PLB PLB PLB PLB PLB PLB
39.00 7.625 193.68 0.500 12.70 - PLB PLB PLB PLB PLB PLB PLB
42.80 7.625 193.68 0.562 14.27 - PLB PLB PLB PLB PLB PLB PLB
45.30 7.625 193.68 0.595 15.11 - PLB PLB PLB PLB PLB PLB PLB
47.10 7.625 193.68 0.625 15.88 - PLB PLB PLB PLB PLB PLB PLB
8 5/8" 24.00 8.625 219.08 0.264 6.71 PS - - - , - - - -
28.00 8.625 219.08 0.304 7.72 - - - - - - - -
32.00 8.625 219.08 0.352 8.94 PSLB - - - - - - -
36.00 8.625 219.08 0.400 10.16 PSLB PLB PLB PLB PLB PLB PLB -
40.00 8.625 219.08 0.450 11.43 - PLB PLB PLB PLB PLB PLB PLB
44.00 8.625 219.08 0.500 12.70 - PLB PLB PLB PLB PLB PLB PLB
49.00 8.625 219.08 0.557 14.15 - PLB PLB PLB PLB PLB PLB PLB
9 5/8" 32.30 9.625 244.48 0.312 7.92 - - - - - - - -
36.00 9.625 244.48 0.352 8.94 PSLB - - - - - - PSLB
40.00 9.625 244.48 0.395 10.03 PSLB PLB PLB PLB PLB PLB - PSLB
43.50 9.625 244.48 0.435 11.05 - PLB PLB PLB PLB PLB PLB -
47.00 9.625 244.48 0.472 11.99 - PLB PLB PLB PLB PLB PLB -
53.50 9.625 244.48 0.545 13.84 - PLB PLB PLB PLB PLB PLB -
58.40 9.625 244.48 0.595 15.11 - PLB PLB PLB PLB PLB PLB -
59.40 9.625 244.48 0.609 15.47 - - - P - P - -
64.90 9.625 244.48 0.672 17.07 - - - P - P - -
70.30 9.625 244.48 0.734 18.64 -   - P - P - -
75.60 9.625 244.48 0.797 20.24 - - - P - P - -
10 3/4" 32.75 10.750 273.05 0.279 7.09 - - - - - - - -
40.50 10.750 273.05 0.350 8.89 PSB - - - - - - PSB
45.50 10.750 273.05 0.400 10.16 PSB - - - - - - PSB
51.00 10.750 273.05 0.450 11.43 PSB PSB PSB PSB PSB PSB PSB PSB
55.50 10.750 273.05 0.495 12.57 - PSB PSB PSB PSB PSB PSB PSB
60.70 10.750 273.05 0.545 13.34 - - - PSB - PSB PSB -
65.70 10.750 273.05 0.595 15.11 - - - PSB - PSB PSB -
73.20 10.750 273.05 0.672 17.07 - -   P - P - -
79.20 10.750 273.05 0.734 18.64 - - - P - P - -
85.30 10.750 273.05 0.797 20.24 - - - P - P - -
11 3/4" 42.00 11.750 298.45 0.333 8.46 - - - - - - - -
47.00 11.750 298.45 0.375 9.53 PSB - - - - - - PSB
54.00 11.750 298.45 0.435 11.05 PSB - - - - - - PSB
60.00 11.750 298.45 0.489 12.42 PSB PSB PSB PSB PSB PSB PSB PSB
65.00 11.750 298.45 0.534 13.56 - P P P P P P -
71.0 11.750 298.45 0.582 14.78 - P P P P P P -
13 3/8"  48.00 13.375 339.72 0.330 8.38 - - - - - - - -
54.50 13.375 339.72 0.380 9.65 PSB - - - - - - PSB
61.00 13.375 339.72 0.430 10.92 PSB - - - - - - PSB
68.00 13.375 339.72 0.480 12.19 PSB PSB PSB PSB PSB PSB PSB PSB
72.00 13.375 339.72 0.514 13.06 - PSB PSB PSB PSB PSB PSB -
16 65.00 - 406.40 - 9.53 - - - - - - - -
16 75.00 - 406.40 - 11.13 - - - - - - - -
16 84.00 - 406.40 - 12.57 - - - - - - - -
16 109.00 - 406.40 - 16.66 - - - - - - - -
18 5/8" 87.20 - 473.08 - 11.05 - - - - - - - -
20 94.00 - 508.00 - 11.13 - - - - - - - -
20 106.50 - 508.00 - 12.70 - - - - - - - -
20 133.00 - 508.00 - 16.13 - - - - - - - -
Note: P--Flat end; S--Short round thread; L--Long round thread; B--Bias trapezoidal thread

API 5CT Oil Casing Pipe

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Tianjin YF Steel Co., Ltd
Audited supplier
2 year
Address: Tianjin, China


Main Product: Carbon Steel Pipe , Galvanized Steel Pipe, Seamless Steel Pipe, Square Steel Pipe, Steel Section, Galvanized Iron Wire

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