What is the API 5CT J55 casing and tubing ?

API 5CT is standard technical specifications for steel casing and tubing pipes used for oil wells in petroleum and natural gas industries. Yield strength of J55 casting is 379-552 MPa. The minimum tensile strength is 517MPa.

Features of API 5CT J55 casing and tubing

The surface of thread of coupling and API 5CT J55 casing and tubing should be smooth without any tear, burr or other defects that may have a negative impact on the strength and close connection.

API 5CT J55 casing and tubing is offered with a free length range from 8m to 13m on basis of the SY/T6194-96 norm. However, it is also available no less than 6m length and its quantity should be no more than 20%.

Deformations which mentioned above are not allowed to appear on the outer surface of API 5CT J55 casing coupling.

Any deformation such as crease, separation, hairline, crack or scab is not acceptable on both inner and outer surfaces of the product. All these defects should be completely removed, and the removed depth must not exceed 12.5% of nominal wall thickness.

Our oilfield tubing and J55 tubing material can be generally relevant to oil, development, shipbuilding, refining, aeronautics, electric power, sustenance, paper, compound industry, restorative hardware, boilers, heat exchangers, metallurgy.