en.Wedoany.com Reported - Recently, Jiugang Group's Hongxing Hongyu New Materials Company in China successfully rolled off a 16.0mm high-grade thick specification X80 pipeline steel hot coil, marking a key breakthrough for the company in the high-end pipeline steel sector. This achievement represents another generational leap for Jiugang in pipeline steel products, following the successful trial production of X70 pipeline steel.
According to publicly available information, Jiugang Group is a major steel enterprise in northwest China and has been continuously deepening its research and development in the high-end steel sector. Prior to this trial production, the technical team systematically carried out technological research, extensively reviewed literature, consulted with industry experts, and absorbed advanced experience. Focusing on the core technical challenges of X80 pipeline steel, the team started with optimizing the alloy composition system, repeatedly simulated the rolling process, and established a full-process integrated process technology model covering "composition system design—microstructure phase transformation design—rolling process design—performance control closed-loop."
To address technical difficulties such as intermediate slab roller table temperature holding and two-stage controlled temperature rolling, the team conducted detailed simulations and process optimizations, strengthening coordination and linkage between process steps. Comprehensive testing showed that the new product has excellent mechanical performance indicators, with outstanding performance in core metrics such as impact toughness and drop weight tear test, fully meeting the requirements of the high-end market.
Zhao Xiaolong, Chief Engineer of Hongyu New Materials Company, stated that this successful development has accumulated valuable technical support and data experience for subsequent industrial production, indicating that Jiugang now possesses a complete technical system for the customized development of this product for high-end clients. This technology can be applied to the construction of long-distance pipelines for oil, natural gas, etc., and has already undergone multiple rounds of testing in simulated environments with a 100% success rate.
This breakthrough further enhances Jiugang's market competitiveness in the high-grade thick specification pipeline steel sector, giving it a competitive edge in similar products and aligning well with the industry trend towards high-end and customized development. In terms of technological maturity, the full-process process model has been verified, showing broad prospects for industrialization and is expected to propel China's pipeline steel industry towards higher performance grades.
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