A breakthrough development in stainless steel for hydrogen (SS-H2) has been achieved by a research project at the University of Hong Kong led by Professor Mingxin Huang, demonstrating a significant advancement over conventional stainless steel.

This new alloy prevents corrosion at ultra-high potentials of up to 1700 mV in chloride media. High corrosion resistance makes it potentially suitable for green hydrogen production from seawater. The performance of SS-H2 in brine electrolysis is comparable to current industrial practices using titanium but at approximately 40 times lower cost. The team is currently working with a factory in mainland China and has already produced several tons of SS H2-based wiring material, marking a step towards industrialization.