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  2. HY-80 - Wikipedia

    en.wikipedia.org/wiki/HY-80

    With the stronger HY-80 steel, this depth increased to 1,800 feet (550 m) and with HY-100 a depth of 2,250 feet (690 m). [2] The first production submarines to use HY-80 steel were the Permit class. These reportedly had a normal operating depth of 1,300 feet, roughly two-thirds the crush depth limit imposed by the steel. [2]

  3. Special treatment steel - Wikipedia

    en.wikipedia.org/wiki/Special_Treatment_Steel

    The development of such homogeneous steel resulted from testing which showed that face-hardened armor was less effective against high-obliquity glancing impacts. Around 1910, Carnegie Steel developed a new nickel-chrome-vanadium alloy-steel that offers improved protection over the prior nickel steel armor, though vanadium was no longer used ...

  4. High-strength low-alloy steel - Wikipedia

    en.wikipedia.org/wiki/High-strength_low-alloy_steel

    High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they are not made to meet a specific chemical composition but rather specific mechanical properties.

  5. Permit-class submarine - Wikipedia

    en.wikipedia.org/wiki/Permit-class_submarine

    Although they used the same HY-80 steel (yield strength 80,000 psi (550 MPa)) as the Skipjacks, the Threshers ' pressure hulls were made using an improved design that extended test depth to 1,300 ft (400 m).

  6. Alloy steel - Wikipedia

    en.wikipedia.org/wiki/Alloy_steel

    Alloy steel is steel that is alloyed with a variety of elements in amounts between 1.0% and 50% by weight, ... Cr 0.50% to 0.80%, Mo 0.25% 44xx Mo 0.40% or 0.52%

  7. Skipjack-class submarine - Wikipedia

    en.wikipedia.org/wiki/Skipjack-class_submarine

    Also like Albacore, the Skipjacks used HY-80 high-strength steel, 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. [5] Control room of Skipjack class; the bow is at the top.

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    www.aol.com/5-little-luxuries-buy-ll-220016048.html

    Weight shouldn’t be your primary tracked measurement when it comes to achieving your fitness goals. Smart scales can measure key body stats, such as body fat, visceral fat, muscle mass and water ...

  9. USS Albacore (AGSS-569) - Wikipedia

    en.wikipedia.org/wiki/USS_Albacore_(AGSS-569)

    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 ...

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