ASTM A516 Gr 65 pressure vessel steel plate A516-60, 65, 70

Multi level gradient materials break through the performance boundary of pressure vessels:
ASTM A516 Gr60/65/70 achieves nanoscale control of grain size through gradient controlled rolling. A516 Gr70 has a tensile strength of 680MPa and has been successfully applied to supercritical CO₂ deep storage equipment, breaking through the traditional container pressure resistance limit.

Intelligent process reconstruction of low-temperature toughness map:
The precision tempering system increases the impact energy of A516 Gr65 by 40% at -80℃. Combined with dynamic quenching technology, it achieves a balance of strength and toughness across the entire section of a 60mm thick steel plate, reducing manufacturing energy consumption by 35%.