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The expert group organized by the Pressure Vessel Sub-Committee of China Machinery Industry Federation’s Major Equipment Office and China Mechanical Engineering Society listened to the steel plate technology development report and third party made by Hegang Wugang and Shenhua Ningxia Coal Group Co., Ltd. The report of the inspection report and the investigation of the new report was submitted to the review and discussion, and the review opinions were given: The J coefficient, X coefficient control, mechanical properties, and low temperature impact toughness of the steel plate are equivalent to those of the steel plate produced by the world's advanced steel enterprises. Some indicators are better than foreign steel mills.
Shenhuaning Group's 4 million tons/year coal-based oil core unit – 8 special steel plates for Fischer-Tropsch reactors, is a key domestic material that is urgently needed for the project. This steel plate design requirements: material SA387Gr11 hydrogen chromium molybdenum steel, compact and good internal quality, good toughness reserves and uniform plate and plate thickness performance, stable medium and high temperature performance, maximum simulation of post-weld heat treatment temperature 690 °C, Insulation for 24 hours, long-term simulated welding -10 °C impact toughness of not less than 80 joules. These design requirements have caused great difficulties in the production of sheet metal. Hegang Steel successfully used SA387Gr11CL2 with a thickness of 132 mm to meet the performance requirements with optimized composition design, grain refinement, uniform microstructure, and simulated post-weld heat treatment.
Yuan Jincheng, director of the company's Container Steel Research Institute, told the reporter that the hydrogen steel plates produced by Hegang Wugang have been used in Shenhua Ning Coal, Shaanxi Future Energy and Shanxi Luan Coal-to-Fiery Fischer-Tropsch Reactors. 40,000 to 50,000 tons.
It is reported that the hydrogen-producing steel plate SA387Gr11CL2 has also been used in a large number of applications on coal gasifiers, with thickness specifications of 70 to 132 mm and supply quantities of nearly 10,000 tons. The quality level meets the needs of the project and the performances have reached the international advanced level. In the development of high-thickness high-end hydrogen chromium-molybdenum steel plate, we have achieved high-end supply of 168 mm, 174 mm, and 177 mm thick high-end hydrogen chromium-molybdenum steel plates. 162mm, 177mm thick steel plate SA387Gr11CL2, domestic production of domestic ammonia converter tower steel. The domestic maximum thickness of 200mm hydrogen-chromium-molybdenum steel sheet has already been applied to Sinopec's Mauzhan world-scale refinery base in Sinopec refining project for the production of its core equipment hot high-pressure separator.
At the end of last month, the SA158Gr11CL2 steel plate for Fischer-Tropsch reactors, which was jointly developed by Hegang Iron and Steel Group Wuyang Iron and Steel Co., Ltd. and Shenhua Ningxia Coal Group Co., Ltd., passed the expert review and made localization of China's petrochemical equipment. Add another weight.
March 10, 2024