What are the potential applications of ultra-high strength steel

The tensile strength of ordinary high-strength steel at room temperature is 1400MPa, and the yield strength greater than 1200MPa is called ultra-high strength steel. Ultra-high strength steel usually also needs to have good ductility and toughness, good fatigue resistance, fracture toughness and stress corrosion resistance.

At present, ultra-high strength steel has been widely used in engine shells, aircraft landing gear, armor plates and other specific fields of rockets. The use of ultra-high strength steel is continuously expanding to construction, machinery manufacturing, military and civilian vehicles and other equipment.

In the major high-tech fields of aerospace new energy advanced equipment manufacturing, national defense security and high-speed rail, there is a major demand for high-end ultra-high strength steel materials. Therefore, for the purpose of national defense security and catering to the needs of ultra-high strength steel plates, vigorously developing ultra-high strength steel is very necessary.