API 5CT K55
API 5CT K55
API 5CT K55 casing pipe is a low-grade steel used in oil drilling. It is commonly used in the extraction of shallow oil and gas. It offers a wider range of uses since it is less expensive than other grades of steel and may be used in shallow wells, geothermal wells, and water wells.
The interface for programming the packing channel for API 5CT K55 and J55 oilfield oil is very similar to J55; there is no major refining within the compound piece, but the yield quality is higher than that of API 5CT J55 steel pipe.
TUSPIPE supply package channels and API 5CT K55 casings complete with string and coupling, or we may substitute our product according on the arrangement. If you are interested in API 5CT K55 casing, we will provide you with the greatest price for the highest quality.
PRODUCT FEATURES
API 5CT K55 Steel Casing ang Tubing Specification
Outer Diameter (Casing Pipe Sizes) | 4 1/2″-20″, (114.3-508mm) |
Standard Casing Sizes | 4 1/2″-20″, (114.3-508mm) |
Thread Type | Buttress thread casing, Long round thread casing, Short round thread casing |
Function | It can protect the tubing pipe. |
API 5CT K55Â Tolerance
Item | Allowable Tolerance | |
Outer diameter | Pipe body | D≤101.60mm±0.79mm |
D≥114.30mm+1.0% | ||
-0.5% | ||
Chemical Composition of API 5CT K55
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. | ||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
 | K55 | – | 0.34 | 0.38 | 1.25 | 1.50 | – | – | – | 0.15 | – | 0.20 | 0.020 | 0.015 | – |
a)Â The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched. b)Â The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm. c)Â The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched. d)Â The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm. e)Â For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum. f)Â NL = no limit. Elements shown shall be reported in product analysis. | |||||||||||||||
Mechanical Analysis of API 5CT K55
API 5CT Casing Pipe Standard | API 5CT Casing Pipe Type | API 5CT Casing Pipe Tensile Strength | API 5CT Casing Pipe Yield Strength | API 5CT Casing Pipe Hardness |
API SPEC 5CT | – | ≥517 | ≥655 | —- |
API Casing/ API 5CT K55 Casing Tubing Specifications
Code a | Outer Diameter | Nominal Weight | Wall Thickness | End Processing Type | |
mm | kg/m | mm | J55 | ||
In | Lb/ft | K55 | |||
1 | 2 | 3 | 4 | 5 | 7 |
4-1-2 | 9.5 | 114.3 | 14.14 | 5.21 | S |
4-1-2 | 10.5 | 114.3 | 15.63 | 5.69 | SB |
4-1-2 | 11.6 | 114.3 | 17.26 | 6.35 | SLB |
4-1-2 | 13.5 | 114.3 | 20.09 | 7.37 | – |
4-1-2 | 15.1 | 114.3 | 22.47 | 8.56 | – |
5 | 11.5 | 127 | 17.11 | 5.59 | S |
5 | 13 | 127 | 19.35 | 6.43 | SLB |
5 | 15 | 127 | 22.32 | 7.52 | SLB |
5 | 18 | 127 | 26.79 | 9.19 | – |
5 | 21.4 | 127 | 31.85 | 11.1 | – |
5 | 23.2 | 127 | 34.53 | 12.14 | – |
5 | 24.1 | 127 | 35.86 | 12.7 | – |
5-1-2 | 14 | 139.7 | 20.83 | 6.2 | S |
5-1-2 | 15.5 | 139.7 | 23.07 | 6.98 | SLB |
5-1-2 | 17 | 139.7 | 25.3 | 7.72 | SLB |
5-1-2 | 20 | 139.7 | 29.76 | 9.17 | – |
5-1-2 | 23 | 139.7 | 34.23 | 10.54 | – |
6-5-8 | 20 | 168.28 | 29.76 | 7.32 | SLB |
6-5-8 | 24 | 168.28 | 35.72 | 8.94 | SLB |
6-5-8 | 28 | 168.28 | 41.67 | 10.59 | – |
6-5-8 | 32 | 168.28 | 47.62 | 12.06 | – |
7 | 17 | 177.8 | 25.3 | 5.87 | – |
7 | 20 | 177.8 | 29.76 | 6.91 | S |
7 | 23 | 177.8 | 34.23 | 8.05 | SLB |
7 | 26 | 177.8 | 38.69 | 9.19 | SLB |
7 | 29 | 177.8 | 43.16 | 10.36 | – |
7 | 32 | 177.8 | 47.62 | 11.51 | – |
7 | 35 | 177.8 | 52.09 | 12.65 | – |
7-5-8 | 24 | 193.68 | 35.72 | 7.62 | – |
7-5-8 | 26.4 | 193.68 | 39.29 | 8.33 | SLB |
7-5-8 | 29.7 | 193.68 | 44.2 | 9.52 | – |
7-5-8 | 33.7 | 193.68 | 50.15 | 10.92 | – |
7-5-8 | 39 | 193.68 | 58.04 | 12.7 | – |
7-5-8 | 42.8 | 193.68 | 63.69 | 14.27 | – |
7-5-8 | 45.3 | 193.68 | 67.41 | 15.11 | – |
7-5-8 | 47.1 | 193.68 | 70.09 | 15.88 | – |
8-5-8 | 24 | 219.08 | 35.72 | 6.71 | S |
8-5-8 | 28 | 219.08 | 41.67 | 7.72 | – |
8-5-8 | 32 | 219.08 | 47.62 | 8.94 | SLB |
8-5-8 | 36 | 219.08 | 53.57 | 10.16 | SLB |
8-5-8 | 40 | 219.08 | 59.53 | 11.43 | – |
8-5-8 | 44 | 219.08 | 65.48 | 12.7 | – |
8-5-8 | 49 | 219.08 | 72.92 | 14.15 | – |
Code a | Outer Diameter | Nominal Weight | Wall Thickness | End Processing Type | |
mm | kg/m | mm | K55 | ||
In | Lb/ft | ||||
1 | 2 | 3 | 4 | 5 | 7 |
9-5-8 | 32.3 | 244.48 | 48.07 | 7.92 | – |
9-5-8 | 36 | 244.48 | 53.57 | 8.94 | PSLB |
9-5-8 | 40 | 244.48 | 59.53 | 10.03 | PSLB |
9-5-8 | 43.5 | 244.48 | 64.73 | 11.05 | – |
9-5-8 | 47 | 244.48 | 69.94 | 11.99 | – |
9-5-8 | 53.5 | 244.48 | 79.62 | 13.84 | – |
9-5-8 | 58.4 | 244.48 | 86.91 | 15.11 | – |
10-3-4 | 32.75 | 273.05 | 48.74 | 7.09 | – |
10-3-4 | 40.5 | 273.05 | 60.27 | 8.89 | PSB |
10-3-4 | 45.5 | 273.05 | 67.71 | 10.16 | PSB |
10-3-4 | 51 | 273.05 | 75.9 | 11.43 | PSB |
10-3-4 | 55.5 | 273.05 | 82.59 | 12.57 | – |
10-3-4 | 60.7 | 273.05 | 90.33 | 13.84 | – |
10-3-4 | 65.7 | 273.05 | 97.77 | 15.11 | – |
11-3-4 | 42 | 298.45 | 62.5 | 8.46 | – |
11-3-4 | 47 | 298.45 | 69.94 | 9.53 | PSB |
11-3-4 | 54 | 298.45 | 80.36 | 11.05 | PSB |
11-3-4 | 60 | 298.45 | 89.29 | 12.42 | PSB |
13-3-8 | 48 | 339.72 | 71.43 | 8.38 | – |
13-3-8 | 54.5 | 339.72 | 81.1 | 9.65 | PSB |
13-3-8 | 61 | 339.72 | 90.78 | 10.92 | PSB |
13-3-8 | 68 | 339.72 | 101.19 | 12.19 | PSB |
13-3-8 | 72 | 339.72 | 107.15 | 13.06 | – |
16 | 65 | 406.4 | 96.73 | 9.53 | – |
16 | 75 | 406.4 | 111.61 | 11.13 | PSB |
16 | 84 | 406.4 | 125.01 | 12.57 | PSB |
18-5-8 | 87.5 | 473.08 | 130.21 | 11.05 | PSB |
20 | 94 | 508 | 139.89 | 11.13 | PSLB |
20 | 106.5 | 508 | 158.49 | 12.7 | PSLB |
20 | 133 | 508 | 197.93 | 16.13 | PSLB |
S-Short round thread, L-Long round thread, B-Buttress thread | |||||
a. Code is used for ordering reference. | |||||
b. The nominal weight of threaded and coupled casing (column 2) is shown for reference only. | |||||
