Performance Evaluation Criteria

In order to achieve extremely high reliability and stability, KZ rebar coupler in SA or FA class must meet the following severe performance evaluation criteria.

SA (Anti-Seismic) Class: The Strength, Deformation, Ductility, and Toughness shall be equivalent to rebar.
FA (Anti-Fatigue) Class: The Strength, Deformation, Ductility, and Fatigue Life shall be equivalent to rebar.

The table listed below indicates required testing items for each class: