The article discusses the crucial role of forged steel components, particularly hydrogen valves, in modern submarines' functionality. Hydrogen fuel cells are highlighted for their ability to power submarines silently underwater, contributing to their stealth capabilities. The use of materials such as F316L, duplex, Monel®, and Hastelloy® in hydrogen valves is emphasized for their corrosion resistance and structural integrity under high-pressure environments. Furthermore, nuclear submarines, known for their long endurance and strategic importance, are mentioned for utilizing similar materials as hydrogen valves in critical components. The article touches on the immense energy output from nuclear reactors in submarines, comparing them to the near-silent operation of hydrogen-powered submarines. Additionally, the importance of specialized valves in controlling ballast tanks for safe submarine maneuvering is discussed. These valves are made from corrosion-resistant materials to withstand extreme underwater conditions and ensure the safety and functionality of submarines. Overall, the article highlights the significance of forged components in military, naval, and defense applications, shaping various industries beyond submarine technology. It also provides insights into the author's background and expertise in the field of solid-state physics and engineering, showcasing a comprehensive understanding of the subject matter.