What type of steel is HY 80?

alloy martensitic steel
HY 80 is a high strength low alloy martensitic steel containing small additions of chromium and nickel to help with corrosion resistance and is supplied in the Type B condition bright finish.

What kind of steel is used on submarines?

High-strength alloyed steel is still the main material for submarines today, with 250–350 metres (820 to 1,148 feet) depth limit, which cannot be exceeded on a military submarine without sacrificing other characteristics. To exceed that limit, a few submarines were built with titanium hulls.

What is NQ1 steel?

Naval Quality 1
The pressure hull containment structure of the submarine is fabricated from high strength steel known as Naval Quality 1 (NQ1) to the highest standards.

Is Hy 80 corrosion resistant?

HY-80 is considered to have good corrosion resistance and has good formability to supplement being weldable. Using HY-80 steel requires careful consideration of the welding processes, filler metal selection and joint design to account for microstructure changes, distortion and stress concentration.

What is 80 ksi steel?

80 KSI Steel (Grade 80) This type of steel is considered a high-strength, low-alloy steel (HSLA steel).

Is Hy 80 carbon steel?

HY-80 steel is a member of the low carbon, low alloy family of steels with nickel, chromium and molybdenum (Ni-Cr-Mo) as alloying elements and is hardenable. The carbon content can range from 0.12 to 0.20 wt% with an overall alloy content of up to 8 wt%.

How thick is the skin of a submarine?

After the war the Navy built several fast attack submarines. These had hulls about an inch and a half thick. They had a test depth of 700 feet. The same hull thickness and quality of steel was used on the early nuclear submarines.

What is Sinn submarine steel?

The case and crown are made of high-strength seawater resistant German Submarine Steel. This type of steel stands out not only for its extremely high strength and exceptional non-magnetic properties but also for its especially high resistance to seawater.

What is Grade 80 steel used for?

Steel grade 80 is used in the production of round and plate springs and parts operating under conditions of increased friction and under the influence of vibration loads; knives of earthmoving machines (bulldozers, scrapers, graders and motor graders), as well as other machine parts used in the hardened and tempered …

What kind of steel is HY80 alloy steel?

They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels. The datasheet given below provides more details about HY80 alloy steel, which has good ductility and excellent notch toughness and weldability.

What do you need to know about HY-80?

This page is mainly introduced the HY-80 Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HY-80,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

What is the yield strength of Hy 80?

HY-80 is supplied in the tempered condition of 80 ksi minimum yield strength. No additional tempering should be attempted. The alloy will harden by cold working. It is supplied in the hardened and tempered condition and should be used that way. HY-80 is noted for notch toughness.

Can you cold work hy 80 alloy steel?

HY-80 alloy steel should not be reheated for forging as it is supplied in the heat treated and tempered condition. Hot working of HY-80 steel can be performed at temperatures ranging between 93 and 316°C (200 and 600°F). HY-80 steel can be cold worked using conventional methods.