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.
According to American Petroleum Institute Standard API SPEC 5CT1988 1st edition, the steel grade of API 5CT oil casing pipe can be divided into ten types, including H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P-110 and Q-125. We supply the casing pipe & API 5CT J55 Casing Tubing accompanied with thread and coupling, or we offer our product in accordance with the following forms for option.
API J55 general purpose pipes for casing tubing applications, similar to specification K55 with lower minimum tensile strength conforming to API specification 5CT
Connections:
STC (short round thread casing)
LTC (long round thread casing)
BTC (buttress thread casing)
XL (extreme-line casing)
Premium Connections
VAM, VAMTOP, NEW VAM
And almost any premium & gas tight connection
Length: Range 1, Range 2 & Range 3:
Applicable Tests: See our Standard Inspection Scope
Protection:
External bare and uncoated or externally coated with black/ transparent anti rust Mill varnish
Plastic or Metal Pin and Box Protectors.
Internal plastic coating or sleeves.
Mill Test Certificates:
Issued in accordance with API Specification 5CT Eighth Edition
Additional Third Party Inspection can also be performed on request.
Specifications of API 5CT J55 Casing Tubing
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 |
oilfield tubing & API 5CT J55 Casing Tubing can be widely applicable to petroleum, construction, shipbuilding, smelting, aviation, electric power, food, paper, chemical industry, medical equipment, boilers, heat exchangers, metallurgy and so on.
API 5CT J55 Casing Tubing Chemical Composition, mass fraction (%)
| 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 |
|
1
|
H40
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
J55
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
|
K55
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
|
N80
|
1
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
|
N80
|
Q
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
|
R95
|
–
|
–
|
0.45 c
|
–
|
1.9
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
0.45
|
|
|
2
|
M65
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.03
|
0.03
|
–
|
|
L80
|
1
|
–
|
0.43 a
|
–
|
1.9
|
–
|
–
|
–
|
–
|
0.25
|
0.35
|
0.03
|
0.03
|
0.45
|
|
|
L80
|
9Cr
|
–
|
0.15
|
0.3
|
0.6
|
0.9
|
1.1
|
8
|
10
|
0.5
|
0.25
|
0.02
|
0.01
|
1
|
|
|
L80
|
13Cr
|
0.15
|
0.22
|
0.25
|
1
|
–
|
–
|
12
|
14
|
0.5
|
0.25
|
0.02
|
0.01
|
1
|
|
|
C90
|
1
|
–
|
0.35
|
–
|
1.2
|
0.25 b
|
0.85
|
–
|
1.5
|
0.99
|
–
|
0.02
|
0.01
|
–
|
|
|
T95
|
1
|
–
|
0.35
|
–
|
1.2
|
0.25 d
|
0.85
|
0.4
|
1.5
|
0.99
|
–
|
0.02
|
0.01
|
–
|
|
|
C110
|
–
|
–
|
0.35
|
–
|
1.2
|
0.25
|
1
|
0.4
|
1.5
|
0.99
|
–
|
0.02
|
0.005
|
–
|
|
|
3
|
P110
|
e
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
0.030 e
|
0.030 e
|
–
|
|
4
|
Q125
|
1
|
–
|
0.35
|
1.35
|
–
|
0.85
|
–
|
1.5
|
0.99
|
–
|
0.02
|
0.01
|
–
|
|
| a The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched. b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm. c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched. d 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 For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum. NL = no limit. Elements shown shall be reported in product analysis. |
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