Size
O. D. : 6. 0-323. 0mm W. T. : 1. 0-30. 0mm Length: Max. 12000mm
Grade and Chemical Composition(%)
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
|
J55(37Mn5) |
- |
- |
- |
≤0. 030 |
≤0. 030 |
- |
- |
- |
- |
- |
|
N80(36Mn2V) |
- |
- |
- |
≤0. 030 |
≤0. 030 |
- |
- |
- |
- |
- |
Mechanical Properties
|
Grade |
Tensile Strength(Mpa)≥ |
Yield Poing(Mpa) |
|
J55 |
379-552 |
517 |
|
N80 |
552-758 |
689 |
Application
Tubing is used to extracting petruleum and natural gas from a well.
Casing serves as walls of a well.