​​JISCO 4200mm Plate Mill Launches as Northwest China's First Major Wide Plate Facility​

Jiuquan Iron & Steel Group (JISCO) has commissioned a landmark ​​4200mm wide and thick plate production line​​ at its Gansu Province facility, marking the first large-width rolling mill operational in Northwest China. The ​​CNY 4.4 billion project​​ was completed in a record ​​547 days​​, significantly expanding JISCO’s capacity to supply critical sectors like wind power, pressure vessels, and infrastructure with high-grade steel plates .

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Capacity and Technical Advancements

The new line adds ​​1.2 million tons​​ of annual wide plate capacity, extending maximum product width from ​​2800mm to 3800mm​​ to meet demand for oversized components in energy and heavy machinery industries. Key technological integrations include AI-driven smart manufacturing systems, which boosted continuous casting efficiency by ​​20%​​ and reduced labor costs by ​​30%​​ through automated scheduling and quality control .
A notable achievement is the project’s environmental performance: carbon emissions per ton of crude steel dropped ​​23.77%​​, aided by energy recovery systems and optimized furnace operations. This aligns with JISCO’s broader sustainability targets while supporting premium product output, which now accounts for ​​70%​​ of total production .

Regional and Industrial Impact

As the largest steel producer in Northwest China, JISCO’s investment addresses regional gaps in wide plate supply, reducing reliance on imports from coastal mills. The ​​4200mm mill​​ enhances China’s self-sufficiency in steel for wind turbine towers, shipbuilding, and pressure containers—sectors prioritized under national green development policies .
The project also reinforces JISCO’s role in local economic ecosystems. With headquarters in Jiayuguan City, the group employs ​​37,000 staff​​ and operates across steel, non-ferrous metals, and equipment manufacturing, contributing to regional industrial diversification .

Market Positioning and Future Outlook

JISCO’s broader product portfolio includes carbon steel wires, bars, and stainless steel coils, with an overall crude steel capacity of ​​11.05 million tons​​ annually. The new plate mill strengthens its competitiveness in high-value segments, particularly as demand grows for tailored solutions in renewables and advanced engineering .
Looking ahead, JISCO plans to leverage this infrastructure to explore exports to Europe and Asia, building on existing trade channels. The mill’s success may also inspire similar upgrades across inland China, supporting national goals for balanced regional development and technological self-reliance .

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