Which statement best describes Independent Wire Rope Core (IWRC) in terms of strength and temperature performance?

• A. Lower strength and cannot be used in hot environments
• B. Moderate strength and temperature range
• C. Higher strength and can be used in hot environments
• D. Weaker than fiber core

Answer: (C)

Independent Wire Rope Core is a steel core that provides independent support inside the rope. Because the core is steel, it adds to the rope’s load-carrying capacity and resists crushing more effectively than a fiber core, giving higher overall strength. It also handles heat better, since steel doesn’t degrade like fibers do at elevated temperatures, so the rope maintains performance in hot environments. That combination—higher strength plus better temperature tolerance—explains why this statement is the best description for IWRC.