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Help CenterAPI 5CT Seamless Oil Tubing/ API J55 Oil Tubing (OCTG)/ 2 7/8" J55 Oil Tubing for Well Drilling
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Specifications
Standard:API SPEC 5CT Standard.Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size:1.05"~4 1/2" for Seamless Tubing
Standard:API SPEC 5CT Standard.
Use: Seamless steel tubes for oil tubing in oil and gas well. Tubing is mounted in the production casing after the oil well is dig and cemented, it is seamless pipe to transport oil gas to ground surface.
Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size:1.05”~4 1/2” for Seamless Tubing
Length: R1/R2/R3
Dimensional tolerances:
Types of steel tubes | Outer diameter | Wall thickness | |
Cold-rolled tubes | Tube sizes(mm) | Tolerances(mm) | Tolerances(mm) |
<114.3 | ±0.79 | -12.5% | |
≥114.3 | -0.5%, +1% | ||
Mechanical properties:
Standard | Models of steel tubes | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Hardness |
API SPEC 5CT | J55 | ≥517 | 379~552 | check the table | ≤241HB |
K55 | ≥517 | ≥655 | |||
N80 | ≥689 | 552~758 | |||
L80(13Cr) | ≥655 | 552~655 | |||
P110 | ≥862 | 758~965 |
Chemical Composition:
Standard | Models of steel tubes | Chemical compositions (%) | ||||||||||
C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Als | ||
API SPEC 5CT | J55K55 (37Mn5) | 0.34~ 0.39 | 0.2~ 0.35 | 1.25~ 1.5 | ≤0.02 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 |
|
| ≤0.02 |
N80 (36 Mn2V) | 0.34~ 0.38 | 0.2~ 0.35 | 1.45~ 1.7 | ≤0.02 | ≤0.015 | ≤0.15 |
|
|
| 0.11~ 0.16 | ≤0.02 | |
L80 (13Cr) | 0.15~ 0.22 | ≤1.0 | 0.25~ 1.0 | ≤0.02 | ≤0.010 | 12.0~ 14.0 | ≤0.20 | ≤0.20 |
|
| ≤0.02 | |
P110 (30CrMo) | 0.26~ 0.35 | 0.17~ 0.37 | 0.40~ 0.7 | ≤0.02 | ≤0.010 | 0.8~1.1 | ≤0.20 | ≤0.20 | 0.15~ 0.25 | ≤0.08 | ≤0.02 | |
Note: Also we can supply you pup joint and coupling (coupling stock and coupling blank) for tubing and Casing, as well as for weld pipe.
If you would like to get the accurate price, please kindly let us know the OUTER DIAMTER/ INSIDE DIAMETER/ STEEL GRADE/ WALL THICKNESS/ LENGTH (R1/R2/R3)/ QUANTITY.
Send Inquiry to This Supplier
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