Why the Soviet Union Built a Submarine Out of Titanium

In 1969, an American intelligence analyst noticed something odd in photos of a Soviet shipyard: submarine hull sections that stayed bright and silver instead of weathering to dark gray. It meant the Soviets had built a warship from titanium, a metal the West believed couldn’t be welded at that size. So why did they do it, and why did they eventually go back to steel? In this video, we look at why titanium was so tempting for submarines (weight, corrosion, magnetism), how the Soviets welded it inside halls filled with argon gas, and the record-breaking boats that came out of it: K-162, the Alfa class, and Komsomolets. 📌 In this video: Herb Lord and the silver hull sections Why titanium is lighter, stronger for its weight, and corrosion-resistant How titanium hulls helped against magnetic anomaly detectors Why titanium is so hard to refine and weld K-162 and its 44.7-knot submerged speed record The Alfa class and its lead-bismuth reactor Komsomolets, the deepest-diving military submarine known Why the Soviet Navy returned to steel with the Akula class Was titanium really too expensive? 💬 Question for you: Was Bogachenko right that titanium would win at scale, or was steel the smarter call? Tell me in the comments.If you enjoy simple explanations of surprising histories, subscribe to Simple Things, Surprising Histories. Soviet titanium submarine, why titanium submarine, Alfa class submarine, Project 705 Lira, K-162 Papa class, Komsomolets K-278, fastest submarine ever built, deepest diving submarine, Cold War submarines, titanium hull, Soviet Navy history, Akula class, submarine engineering explained, why submarines use titanium #SovietSubmarine #Titanium #ColdWar #Submarine #Engineering ⚠️ Copyright Notice • We use images and content in accordance with YouTube’s fair use copyright guidelines. • Section 107 of the U.S. Copyright Act states: “Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright.” • This video may contain certain video clips, images, or photographs copyrighted by others that were not specifically authorized for use by the copyright holder(s), but which we believe in good faith are protected by federal law and the fair use doctrine for one or more of the reasons outlined above.