API 5CT J55 casing pipes are used to support the wall of oil and gas well, so as to ensure the normal operation of the whole well during and after drilling. A few layers of API 5CT J55 casing pipes should be used in each well according to different drilling depth and geological condition.
API 5CT J55 casing pipe Chemical Composition:
|
Grade |
C≤ |
Si≤ |
Mn≤ |
P≤ |
S≤ |
Cr≤ |
Ni≤ |
Cu≤ |
Mo≤ |
V≤ |
Als≤ |
|
API 5CT J55 |
0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.02 |
0.015 |
0.15 |
0.2 |
0.2 |
/ |
/ |
0.02 |
API 5CT J55 casing pipe Mechanical Property:
|
Steel Grade |
Yield Strength (Mpa) |
Tensile Strength (Mpa) |
|
API 5CT J55 |
379-552 |
≥517 |
API 5CT J55 casing pipe covers API 5CT J55 PSL1 casing pipe and API 5CT J55 PSL2 casing pipe. For API 5CT J55 PSL1 casing pipe, the delivery state is as rolled. For API 5CT J55 PSL2 casing pipe, the pipes should be whole normalized or normalized and tempered. If thickening, the API 5CT J55 PSL2 casing pipe should do the heat treatment after the thickening.
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