API 5CT Tubing and Casing Coupling

API 5CT Tubing and Casing Coupling. Comprehensive Steel Grade Options: Available in J55, K55, C75, L80, N80, C95, and P110 grades. Dual Coupling Types: Offers both tubing couplings (EUE, NUE) and casing couplings (LTC, STC, BTC). Fatigue Fracture Prevention: Tapered thread design effectively prevents oil well pipe string breakage. Strict Thread Precision: Manufactured with high-precision screw threads to ensure joint tightness. Seamless Manufacturing: Produced using seamless pipe manufacturing methods for superior quality. ISO and API Certification: Certified under ISO 9001:2000 and API 5CT standards. Fast Lead Time: Average lead time within 15 workdays for both peak and off-peak seasons. Global Shipping Terms: Supports FOB, EXW, CIF, and DDP terms from Tianjin, Qingdao, and Shanghai ports.