Steel Industry News Highlights

TISCO Xinha Successfully Rolls 2.0×1535mm Thin Plate in One Operation

Recently, TISCO Xinha in Shandong has successfully rolled a 2.0×1535mm specification thin plate in a single operation. This rolling process has set higher standards for equipment precision, automation control level, and operator skills. The difficulty of rolling has significantly increased with the wider width and thinner thickness of the steel plate.

It is reported that the 2.0×1535mm thin plate is the thin specification limit for the dual furnace rolling mill adjustment. To ensure the successful completion of this task, the leadership of TISCO Xinha has attached great importance to it, focusing on key points and resolving issues encountered in production in a timely manner. The hot rolling party branch has mobilized party members to take the lead and actively tackle difficulties through various forms such as "three meetings and one lesson". By playing the entrepreneurial spirit, multiple technical backbone meetings have been held for rigorous planning and conducting multiple simulation rolling tests, addressing issues such as rough rolling work roll kilometers and secondary model testing one by one. Parameters such as rolling passes and rolling load distribution have been repeatedly optimized, and the rolling plan has been strictly demonstrated to ensure efficient equipment operation and product quality. The success of this rolling is of milestone significance for the company's adoption of the dual-stand furnace rolling mill production process, marking a new breakthrough in product specifications.

Indonesian Guangqing's New 1780mm Hot Continuous Rolling Project Successfully Passes Hot Load Test

Recently, the new 1780mm hot continuous rolling project of Indonesian Guangqing De (a cooperation project between Indonesian Qingshan and Hebei Delong), which is contracted by Guoji Heavy Industry for mechanical, electrical, and hydraulic equipment, has successfully passed the hot load test in one go. This is the first set of modern hot continuous rolling equipment for stainless steel and carbon steel exported overseas by Guoji Heavy Industry, with comprehensive technical performance reaching the international leading level. The project is jointly responsible by China Heavy Industry Academy and Erzhong Equipment, which are part of Guoji Heavy Industry.

Guoji Heavy Industry has fully exerted its strong scientific and technological research strength and the full industrial chain manufacturing capability of major technical equipment. Through precise design, precision manufacturing, lean quality, and meticulous service, it has created a high-quality, high-quality, and high-stability hot continuous rolling machine production line with advanced equipment such as high-reliability and high-precision finishing mill units and high-rigidity roughing mill units, as well as new generation of bending and rolling systems, and hot coil box saturated steam blowing systems, and other technologies. It can meet the needs of users for efficient rolling of a mixed production mode of more than 4.5 million tons of multi-brand carbon steel products and a series of high-quality stainless steel products per year, providing strong support for promoting the high-end, intelligent, and green development of metallurgical equipment.

Jing'an Stainless Steel Pickling Project's 1450mm Rolling Production Line Under Construction

It is reported that the large machinery of the Jing'an Stainless Steel Pickling Project in Naiman Banner, Inner Mongolia, is operating orderly.

The project has a total investment of 5.31 billion yuan, with an annual output of 2.2 million tons of stainless steel coil, which can provide more than 3,000 jobs. So far, one 1050mm rolling production line has been put into production conditions, equipped with two pickling production lines, and started trial production on July 4th. The 1450mm rolling production line is under construction and is expected to be ready for production in August 2025.

At present, Naiman Banner has 8 stainless steel industry-related enterprises, 6 construction projects, and 5 nickel slag disposal enterprises in the park, which can digest 7 million tons of nickel slag annually. Upstream, Naiman Banner will focus on undertaking raw material projects such as nickel iron, silicon manganese, and high-carbon chromium iron alloy. Downstream, it will focus on undertaking projects in the fields of stainless steel profiles, tableware and kitchen utensils, precision castings, medical equipment, and other fields. It is expected that by the end of the "14th Five-Year Plan," the total industrial chain output value will exceed 100 billion yuan.

Handan Special Tube Successfully Develops Martensitic Stainless Steel Tubes for Oil Use

Handan Special Tube adheres to market demand as a guide, accelerates the domestication of high-end products, and stands in the high-end industry, achieving a new breakthrough in the research and development and production of 85KSI martensitic stainless steel tubes for oil use.

This product has a complex performance in heat treatment process compared with different components of 13Cr, and the production difficulty is relatively large. To successfully tackle the process, the technical backbone of the party group of the company's R&D center has consulted materials, optimized the composition, carried out a series of steel tube extrusion and heat treatment experiments, summarized the technical indicators and production parameters that 85KSI-13Cr can achieve, and successfully developed more than 10 specifications of 85KSI-13Cr products. After testing, while the strength meets the requirements, the impact energy is more than 50% higher than the conventional 13Cr, and the product quality performance is stable.

The successful development and production of 85KSI martensitic stainless steel tubes for oil use not only provides a larger selection space for domestic users to extract oil and gas wells with different CO2 and H2S corrosion conditions but also greatly enhances the technical level of domestic high-alloy oil well tube production, making an outstanding contribution to the company's development in the field of high-end stainless steel tubes.