API 5CT J55 casing for oil and gas

Classification :

API 5CT J55 Casing Tubing is a API 5CT Oil Casing Pipe & mainly used for oil well drilling.
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.

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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	Grade	Threaded	Length
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(%)

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

≤0.020

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

≤0.020

P110,

(30CrMo)

0.26~0.35

0.17~0.37

0.40~0.70

≤0.020

≤0.010

0.80~1.10

≤0.20

0.15~0.25

≤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

warehouse storage

The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

Packing and shipping

Our main products are: carbon steel plate, carbon steel pipe, carbon steel coil, stainless steel plate, stainless steel coil, stainless steel profile, galvanized plate, galvanized coil, color coated steel coil, ppgi/ppgl and a wide range of high quality steel products.

Customer visit

Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

Cooperation Case

Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

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