OCTG COUPLINGS, SEAMLESS PIPE, API 5CT CERTIFICATED, OILFIELD TOOLS, PREMIUM CONNECTION COUPLINGS

COUPLINGS:

OCTG COUPLINGS, SEAMLESS PIPE, API 5CT CERTIFICATED, premium connection couplings

20 Years Oil & Gas field Experience. In Stock. Shipping Worldwide. Commitment to Quality. API - 5CT Certificated Supplier. Strict Quality Inspection. Get Quote Now

DIVIDED BY TYPES:

1- STANDARD COUPLING

2- SPECIAL CLEARANCE COUPLING

3- SPECIAL BEVEL COUPLING 

4- API MODIFIED SEAL-RING COUPLING (SR13)

5- COMBINATION COUPLING OR REDUCING COUPLING 

6- PREMIUM COUPLING 

DIVIDED BY APPLICATION:

1-TUBING COUPLING

2-CASING COUPLING 

3-PREMIUM CONNECTION COUPLING 

4-LINE PIPE COUPLING

API casing and tubing coupling dimension ranges from OD 1.05 inch to 20 inch (26.7 mm to 508 mm), wall thickness normally ranges from 0.16 inch to 1 inch (4.2 mm to 22 mm).

Coupling for Casing and Tubing:
Standard: API SPEC 5CT, API SEPC 5B,API-7
Steel grade:H40,J55,K55,N80,L80,C-90,C95,T95,P110,Q125,13Cr-80,13Cr-110, super13

Other requirements in API 5CT Standard

1). Appearance quality

According to API 5CT specification, the internal and external surface of coupling shall not have folding, cracks, separation, scaling and other defects.

2). Test methods

Tests for making couplings is similar with the casing and tubing, which includes: Tensile test, flattening test, hydrostatic pressure test, sulfide stress corrosion cracking test, grain size determination, transverse impact test and hardness test.

Octal supplies API couplings for casing and tubing connections, feel free to contact us for any of the request refer to the API or premium connections.