What is China's new super steel?

Written by Editorial Team | Last Updated: August 2026

Researchers, led by Professor Huang at the University of Hong Kong, have developed a groundbreaking "Super Steel" (SS-H2) that offers superior corrosion resistance and strength. By using a novel "sequential dual-passivation" strategy, the alloy creates a protective layer that prevents corrosion even in harsh chloride media, reaching an ultra-high potential of 1700 mV. Beyond its mechanical strength and ductility records, SS-H2 is significant for its potential to lower the cost of hydrogen production. It can replace expensive precious metals currently used as catalysts in water-splitting processes, providing a much more economical solution to help scale up green hydrogen energy, thereby supporting global carbon neutrality efforts and China's own climate goals.

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