API 5CT J55 casing for oil and gas
We manufacture API 5CT J55 Casing Tubing in accordance with the SY/T6194-96 standard,
it is available as short thread type and long thread type supplied with their couplings.
Classification :
PRODUCT DETAILS
Product introduction
The J55 API casing or tubing is a relatively common one in oil drilling. Because of the low steel grade of J55,
it is used for shallow oil and gas extraction. Due to its low price among other grades of steel, it enjoys broader
applications. The J55 API casing or tubing is widely used in the extraction of natural gas and coalbed methane,
and can be commonly found in shallow wells, geothermal wells, and water wells.
Specifications
1. Outer diameter
4 1/2″, 5″, 5 1/2″, 6 5/8″, 7″, 7 5/8″, 9 5/8″, 10 3/4″, 13 3/8″, 16″, 18 5/8″, 20″
2. Wall thickness
5.21 – 16.13 mm
3. Thread type
SC(Short round thread), LC(Long round thread), BC(Buttress thread)
4. Length
R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m)
| Outer Diameter | Wall Thickness | Weight | Grade | Threaded | Length | |
| in | mm | kg/m | lb/ft | |||
| 4 1/2" | 114.3 | 14.14-22.47 | 9.50-11.50 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 5" | 127 | 17.11-35.86 | 11.50-24.10 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 5 1/2" | 139.7 | 20.83-34.23 | 14.00-23.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 6 5/8" | 168.28 | 29.76-35.72 | 20.00-24.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 7" | 177.8 | 25.30-56.55 | 17.00-38.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 7 5/8" | 193.68 | 35.72-63.69 | 24.00-42.80 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 8 5/8" | 219.08 | 35.72-72.92 | 24.00-49.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 9 5/8" | 244.48 | 48.07-86.91 | 32.30-58.40 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 10 3/4" | 273.05 | 48.73-97.77 | 32.75-65.70 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 11 3/4" | 298.45 | 62.50-89.29 | 42.00-60.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
| 13 3/8" | 339.72 | 71.43-107.15 | 48.00-72.00 | J55/N80/P110/K55 | LTC/STC/BTC | R1/R2/R3 |
API 5CT J55 Casing Tubing Features
The surface of thread of coupling and API 5CT J55 Casing Tubing should be smooth without any tear, burr
or other defects that may have a negative impact on the strength and close connection.
API 5CT J55 Casing Tubing is offered with a free length range from 8m to 13m on basis of the SY/T6194-96
norm. However, it is also available no less than 6m length and its quantity should be no more than 20%.
Deformations which mentioned above are not allowed to appear on the outer surface of API 5CT J55 Casing
Tubing coupling.
Any deformation such as crease, separation, hairline, crack or scab is not acceptable on both inner and outer
surfaces of the product. All these defects should be completely removed, and the removed depth must not
exceed 12.5% of nominal wall thickness.
Technical data
Chemical Composition
|
Standard |
Grade |
Chemical Component(%) |
||||||||||
|
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 |
≤ |
|
|
Standard |
Grade |
Tensile Strength(MPa) |
Yield Strength(MPa) |
Elongation(%) |
Hardness |
|
API SPEC 5CT |
J55 |
≥517 |
379~552 |
/ |
|
|
K55 |
≥517 |
≥655 |
|
||
|
N80 |
≥689 |
552~758 |
|
||
|
L80(13Cr) |
≥655 |
552~655 |
≤241HB |
||
|
P110 |
≥862 |
758~965 |
|
Storage video
Factory appearance and appearance
The company mainly engaged in steel production, sales and other businesses. The main products include all kinds of steel plate, steel pipe, bar, profile and other materials and section steel. At the same time is a number of domestic large steel mill level agents, with a certain price advantage.

Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.

Customer Visit Feedback
Over the years since its establishment, the company has been adhering to the purpose of "honoring contract, keeping faith, customer first, reputation first, quality first", adhering to the customer demand as the center, to "reach customer think, think customer think" business philosophy.

CERTIFICATE OF HONOR
WELCOME TO INQUIRE
The company guarantees the quality of its products with its strong financial strength, advanced management experience and strict quality control system for incoming goods. Excellent products and good reputation are well-known all over the country, and have won the trust and support of major steel mills and customers. Welcome to inquire, negotiate or visit our company in person. Welcome to inquire, negotiate or visit our company in person.
COOPERATIVE PARTNER
FAQ
Q1:Will you offer samples?
A:Yes. We will provide samples according to your needs and send them out within three days after receiving payment.
Q2 : What product information do I need to provide?
A : Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3 : It's my first time to import steel products, can you help me with it?
A : Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:Do you have the products in stock?
A:We have the products in stock. Also, we can produce for your order.
Q5:Do you offer after-sales services?
A : Of course. We have a perfect after-sales service system, if you have any questions, please feel free to contact us. We will do it to your satisfaction.
Q6:What kind of work does your company do?
A:Our company is a professional manufacturer. We mainly produce stainless steel plate/coil/round rod, carbon steel plate/coil,galvanized plate/coil, PPGI coil, roofing sheet and so on.
Q7:What are the advantages of your company?
A : We have international advanced production equipment, large factory buildings, strong company strength, perfect products and reliable quality.
Q8 : Are you a factory or trading company?
A : We are a professional steel factory with many years of experience, perfect manufacturing process, quality assurance!
RELATED PRODUCTS
GET A FREE QUOTE