API 5CT Couplings

16/05/2025

API 5CT Tubing Coupling 2 3/8" EU L80

This product is a commonly used connection in 5CT tubings grade L80, and L80 is usually made of 25Mn2-Q quenched and tempered steel. This type of steel needs to meet specific performance requirements, such as high strength and good toughness, to ensure the safety and durability of oil pipes and casings under various complex working conditions.

API 5CT Tubing Coupling 2 3/8" EU L80
API 5CT Tubing Coupling 2 3/8" EU L80
API 5CT Tubing Coupling 2 3/8" EU L80

API 5CT Casing Couplings 5-1/2 K55 BC

The oil casing coupling connects the end of the oil pipe to the coupling body through tapered/flat threads, effectively alleviating the stress concentration problem caused by a single tapered thread connection and reducing the risk of pipe breakage accidents. Technical parameters: Outer diameter range: 42.16mm – 508mm (1.66 "– 20") Material grades: H40, J55, K55, N80, L80, P110, Q125, etc. 68 Execution standards: API 5CT, ISO 11960, GOST, etc Classification of buckle types: NU (10RD flat non thickened type) EU (8RD thickened type) STC (short round thread), LTC (long round thread), BTC (offset ladder thread) and special buckle types 68

API 5CT Casing Couplings 5-1/2 K55 BC
API 5CT Casing Couplings 5-1/2 K55 BC
API 5CT Casing Couplings 5-1/2 K55 BC