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. It is valued for its strength to weight ratio
The “HY” steels are designed to possess a high yield strength (strength in resisting permanent plastic deformation). HY-80 has a high yield strength with a minimum of 80 ksi.
HY-80 Round bar per MIL-S-16216 & NAVSEA T9074-BD-GIB-010/0300 diameters range from 0.125″ to 14.00″ diameter.