Forged bar
＞Ф90mm-Ф450mm
Rolled bar
Ф8mm-Ф90mm
Cold-drawn ba
Ф3.5mm-Ф65mm
Q/ZHSD-056-2025
Combines ultra-high strength and high toughness; tensile strength 1500–1800 MPa or higher; fracture toughness and impact toughness (especially low-temperature impact energy) far superior to many traditional medium/high-carbon ultra-high strength steels at similar strength levels, making it safer under impact or in the presence of cracks. Excellent fatigue performance and stress corrosion resistance; among ultra-high strength steels, its fatigue strength (especially high-cycle fatigue) is good; moderate carbon content and cleanliness control reduce fatigue crack initiation tendency
Aerospace