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Views: 6 Author: Site Editor Publish Time: 2026-02-25 Origin: Site
The 3 1/2 L80-1 EUE Tubing Coupling is manufactured according to API 5CT standards for connecting 3 1/2″ EUE tubing pipes. It ensures precise thread engagement and consistent performance under oilfield well conditions.
Constructed from L80-1 steel, it delivers enhanced strength and toughness for high-load tubing applications.
API 5CT Standard Compliance
L80-1 High-strength Material
External Upset End (EUE) Thread
CNC Machined Threads
Corrosion-Resistant Finish
Specification | Detail |
|---|---|
Size | 3 1/2″ |
Thread Type | EUE |
Steel Grade | L80-1 |
Material | Seamless Carbon Steel |
Heat Treatment | Quenched and Tempered |
Thread Form | API Round Thread |
Parameter | Value |
|---|---|
Coupling OD | ~4.20″ (106.7 mm) |
Coupling Length | ~5.50″ (140 mm) |
Approx. Weight | ~3.20 kg |
Thread Pitch | 8 TPI |
Production tubing strings
Injection wells
Workover operations
Compatible with API 3 1/2″ tubing
Raw material inspection
Thread gauging
Mechanical testing
Surface finish verification
Wooden pallets or cases
Anti-rust protection
Export-ready packaging
✅ Reliable high-strength tubing connection
✅ Durable for downhole operations
✅ Seamless API tubing integration
