Recently, a 10000×56mm (10-meter diameter, 56mm thickness) hemispherical headmade of Q550CFD material, successfully produced by Henan Jiutian Head Co., Ltd., was shipped. As a high-strength steel with low susceptibility to welding cracks, Q550CFD offers a yield strength of ≥550 MPa and a tensile strength of ≥690 MPa, making it suitable for high-pressure working conditions. This component will be used in the core gas storage device of a large-scale underground compressed air energy storage system, demonstrating its core competitiveness in tackling major engineering challenges.

The company has previously achieved multiple technological breakthroughs in the field of large-scale equipment. The successful delivery of this 10-meter diameter hemispherical head made of Q550CFD material fully showcases Henan Jiutian Head's technical expertise and production capabilities. It has not only provided the company with valuable experience in the manufacturing of major engineering equipment but also further strengthened its market competitiveness in the equipment manufacturing industry.