Hydrogen plays a key role in engineering and steel fabrication by serving as a cleaner alternative to carbon in processes like steel production and metalworking. In steel fabrication, hydrogen is used as a reducing agent in direct reduced iron (DRI) production, helping to lower emissions by replacing coke and coal. It also creates a reducing atmosphere in annealing furnaces, preventing oxidation and improving the quality of steel during heat treatment. Hydrogen’s use in welding and cutting processes helps produce cleaner cuts and reduces the risk of metal contamination. As industries push for decarbonisation, hydrogen is becoming essential for producing high-quality steel with a lower environmental impact.