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Permit class USS Plunger on the building ways at Mare Island. HY-80 is a high-tensile, high yield strength, low alloy steel.It was developed for use in naval applications, specifically the development of pressure hulls for the US nuclear submarine program and is still currently used in many naval applications.
Low-carbon STS was used in the experimental submarine USS Albacore and the aircraft carrier USS Forrestal. Low-carbon STS became the forerunner of HY-80, which eventually became the standard steel for submarine construction during the Cold War. [2] [3]
The hull of the Albacore utilized HY-80 high-strength steel [3] with a yield strength of 80,000 psi (550 MPa), although this was not initially used to increase the diving depth relative to other US submarines. HY-80 remained the standard submarine steel through the Los Angeles class. [15] Other components were made from high-tensile steel (HTS ...
United States Navy submarine tenders are U.S. Navy vessels, common throughout World War II, stationed in remote areas of the oceans to service submarines assigned to them. Such service would include providing fuel, food, potable water, spare parts, and some repair of submarine equipment and minor hull components.
The hull is constructed from a high-tensile micro-alloy steel, developed by Swedish steel manufacturer SSAB, and improved by BHP of Australia, which was lighter and easier to weld than the HY-80 or HY-100 nickel-alloy steel used in contemporary submarine construction projects, while providing better results in explosion bulge testing. [141]
But 80 years ago, you could see and maybe even touch evidence of the enemy. On Sept. 21, 1943, at the height of World War II, a Japanese submarine was parked on the street just south of where the ...
The FBI has seized multiple websites that North Korean operatives used to impersonate legitimate US and Indian businesses in a likely effort to raise money for the nuclear armed-North Korean ...
The first submarine commissioned in the class was the ill-fated Thresher, and so the class was known by her name. When Thresher was lost on 10 April 1963, the class took the name of the second ship in the class, Permit. Thresher had numerous advanced design features and embodied the future of US Navy submarine design, and her loss was a serious ...