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High-Speed Steel (HSS) rolls are widely used in hot rolling mills because of their excellent wear resistance, long service life, and strong cost-performance ratio. In the production of ribbed steel bars, HSS rolls can deliver much higher rolling output than many conventional roll materials. However,

This article explains why proper cooling is essential for maximizing the performance and cost efficiency of HSS rolls in modern long product mills. It highlights how cooling conditions affect wear, thermal fatigue, roll life, regrinding potential, and overall rolling cost.