
· Period:2021/6/15 - 2024/6/15
· No.:5CT-0755
· Certification bodies:American Petroleum Institute
Scope
This Standard specifies the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3).
The requirements for PSL-1 are the basis of this Standard.
The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3, for all Grades except H-40, L-80 9Cr and C110, are contained in Annex H.
Peotroleum and natureal gas industies – Steel pipes for use as casing or tubing for wells.
Standard: API SPEC 5CT
API 5CT pipe Size (mm):
· Outer Dimensions: 6.0mm – 219.0mm
· Wall Thickness: 1.0mm – 30 mm
· Length: max 12000mm
Application: gas, water and oil transportation in both oil and natural gas .
The main steel grade of API 5CT:
· API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110.
Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
This International Standard is applicable to the following connections in accordance with ISO 10422 or API Spec 5B:
· short round thread casing (STC);
· long round thread casing (LC);
· buttress thread casing (BC);
· extreme-line casing (XC);
· non-upset tubing (NU);
· external upset tubing (EU);
· integral joint tubing (IJ).
For such connections, this International Standard specifies the technical delivery conditions for couplings and thread protection.
For pipes covered by this International Standard, the sizes, masses, wall thicknesses, grades and applicable end finishes are defined.
This International Standard may also be applied to tubulars with connections not covered by ISO/API standards.

