酒钢集团重磅项目投产：西北首条4200mm宽厚板生产线建成运行

Group 1 - The project marks the completion of the first 4200mm wide thick plate production line in Northwest China, with a total investment of 4.4 billion yuan and a construction period of 547 days, setting a record for similar projects in the industry [1] - The production capacity will reach 2.3 million tons of continuous casting billets and 1.2 million tons of wide thick plates annually, filling the gap of large-width rolling mills in Gansu [1] - The product thickness has been expanded from 6-40mm to 6-100mm, and the width from 2800mm to 3800mm, enabling the supply of a full range of five categories of steel products, with high-end products in key areas accounting for 70% [1][2] Group 2 - The project features significant automation, with the intelligent steelmaking system improving continuous casting billet production efficiency by 20% and reducing scrap rate to 0.2%, while labor costs decreased by 30% [2] - The project demonstrates notable achievements in green and low-carbon development, with carbon emissions per ton of crude steel reduced from 351.51 kg to 267.94 kg, a decrease of 23.77%, and dust emissions controlled below 8 mg/m [2] - The project is expected to enhance the market share of Jiu Steel's medium and thick plates in the Northwest region to 35%, establishing it as the benchmark production line with the most advanced equipment and the widest range of specifications [2]