Xinsteel Successfully Develops High-Strength and High-Toughness EQ70 Grade Extra-Thick Steel for Offshore Engineering
Recently, XISCO Group successfully developed EQ70, a high-strength, tough, and extra-thick marine engineering steel, and successfully completed the first batch of export orders to the South American market. This marks a major breakthrough for XISCO in the field of high-strength, tough, and extra-thick marine engineering steel, placing it at the forefront of the industry.
EQ70, a high-strength, tough, and extra-thick marine engineering steel, is primarily used in high-end applications such as ultra-large offshore equipment and polar vessels, placing extremely stringent demands on the steel's strength, toughness, and weldability. XISCO's Heavy Plate Division, targeting this high-end market demand, has effectively addressed the industry's common challenge of balancing the strength and toughness of extra-thick (over 80 cm) steel plates through composition design and process optimization. The result is a steel grade with a yield strength of ≥690 MPa, a tensile strength of ≥770 MPa, and an impact absorption energy of ≥80 joules at -40°C.
The successful development and first delivery of the high-strength, tough, and extra-thick offshore engineering steel EQ70 represents a breakthrough in the 690 MPa ultra-high-strength offshore steel market, enriching its high-end product portfolio and laying a solid foundation for capturing the high-end offshore steel market. Furthermore, Xingang provides a reliable domestically produced supply channel for high-end offshore engineering equipment such as floating production storage and offloading vessels (FPSOs) and deepwater drilling platforms, injecting new momentum into the development of my country's offshore engineering equipment.
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