API 11B Compliance: Manufactured strictly according to API Specification 11B standards for Class T and Class SM couplings.
Cold Form Rolling Process: Uses cold form rolling to create compressive stress, providing maximum strength at thread roots.
Hydrogen Embrittlement Resistance: Made from AISI 5140 alloy steel, offering high resistance to hydrogen embrittlement for durability.
Advanced Thermal Spraying: Class SM couplings feature thermal spraying with Ni alloy to reduce friction coefficient to 0.01.
Customizable Surface Treatment: Available with phosphate chemical treatment or black oxide coating based on customer requirements.
24/7 After-Sales Support: Provides round-the-clock technical assistance and support for all machinery operations.
Multiple Size Options: Available in full size, slim hole, over size, and combination sub-couplings for various diameters.
High Wear and Corrosion Resistance: Engineered with specialized hardening processes to withstand harsh oil exploitation environments.