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API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING
API 5CT J55 CASING

API 5CT J55 CASING

The J55 API-5CT casing pipe is a comparatively low steel grade in oil drilling. It is widely applied for shallow oil and gas extraction.Because of its low cost among other grades of steel, it enjoys wider applications, can be generally used in shallow wells, geothermal wells, and water wells.
Wall thickness:5.21 mm - 16.13 mm
Outer diameter:4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 13 3/8", 16", 9 5/8", 10 3/4", 18 5/8", 20"
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Product Introduction
Pipes that belong to grade J55 have a minimum tensile strength that is lower while exhibiting properties similar to grade K55. Similar to most API specifications, the industry to benefit the most by using the API 5CT J55 Casing Tubing is natural gas, oil and petroleum industry. These pipes are used in the transportation of raw materials or products from one end to another.

The tubes under specification API 5CTQ J-55 are outfitted with varied end connections such as non-Upset ends or an External Upset End. the API 5CT Grade J55 Casing Pipe is considered to be a standard or a typical grade for tubes in systems that tend to be relatively shallow, say less than 9,000 ft. Moreover, these pipes are also well suited for applications in low-pressure environments where the pressure is less than 4,000 psi. Some suppliers recommend that the API 5CT J55 OCTG and Linepipe be either normalized across the full-length or the pipe could be treated to a combination of normalizing and tempering, after upsetting. These treatments performed on the Api 5ct J55 Oilfield Casing Pipe operates well, especially when used in applications that involve either carbon dioxide or sour service. Traditionally, pipes exposed to such conditions are prone to ringworm corrosion problems.  Nonetheless, the use of such type of heat treatments could raise the initial costs of the pipe.
Technical data

API 5CT J55 Casing Tubing Material Specification Chart

Outer diameter 4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 13 3/8", 16", 9 5/8", 10 3/4", 18 5/8", 20"
Thread type SC(Short round thread), LC(Long round thread), BC(Buttress thread)
Wall thickness 5.21 mm - 16.13 mm
Length R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m)
Standards API SPEC 5CT
Length Range R1(6.10-7.32m), R2(8.53-9.75m), R3(11.58-12.8m)
Model in Common Use 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2"
Steel Grade (Casing Grades, Tubing Grades) J55, K55, N80-1, N80-Q, L80, P110
Specialties
  • Drifting (Full-length, or just ends)
  • Threading
  • Heat treating
  • External upset
  • Hydrostatic Testing
  • Couplings – EUE, AB Modified, turned down, special clearance couplings
  • Coating to customer specifications
  • Full third-party inspection capabilities (EMI, SEA, and Weld Line)
  • Pup Joints
 

 

Chemical Composition Chart of API 5CT Oil Casing Pipe

 
API 5CT J55 Group API 5CT J55 Grade API 5CT J55 Type API 5CT J55 C API 5CT J55 Mn API 5CT J55 Mo API 5CT J55 Cr API 5CT J55 Ni max. API 5CT J55 Cu max. API 5CT J55 P max. API 5CT J55 S max. API 5CT J55 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 -
 

API 5CT Gr. J55 Tubing Mechanical Analysis

API 5CT Casing Pipe Standard API 5CT Casing Pipe Type API 5CT Casing Pipe Tensile Strength
MPa
API 5CT Casing Pipe Yield Strength
MPa
API 5CT Casing Pipe Hardness
Max.
API SPEC 5CT J55 ≥517 379 ~ 552 ----
K55 ≥517 ≥655 ---
N80 ≥689 552 ~ 758 ---
L80(13Cr) ≥655 552 ~ 655 ≤241HB
P110 ≥862 758 ~ 965 ----
 

Color Code of API 5CTQ J-55 Casing Tubing

Name J55 K55 N80-1 N80-Q L80-1 P110
Casing a bright green band two bright green bands a bright red band a bright red band + a green band a red band + a brown band a bright white band
Coupling entire green coupling + a white band entire green coupling entire red coupling entire red coupling + a green band entire red coupling + a brown band entire white coupling












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