I. Chemical composition

• Carbon (C) content is 0.12%

• Manganese (Mn) content is 1.00%-1.50%

• Silicon (Si) content is 0.10%-0.50%

• Phosphorus (P) content does not exceed 0.030%

• Sulfur (S) content does not exceed 0.025%

• Niobium (Nb) content is 0.015%-0.060%

• Titanium (Ti) content is about 0.015%-0.060%

• Vanadium (V) content is 0.02%-0.15%

II. "Booster" of the lightweight process of automobiles

In the field of automobile manufacturing, lightweighting is the key to improving fuel economy and endurance. QStE340TM alloy steel plate has become the preferred choice for parts manufacturing due to its high strength and lightweight characteristics. The QStE series of high-strength automotive structural steels developed by Panzhihua Steel and Vanadium Research Institute and Panzhihua Steel and Vanadium have made breakthroughs in the microstructure and performance control technology of titanium microalloyed hot-rolled steel and achieved mass production of 100,000 tons. Its excellent stamping and flanging hole expansion performance not only reduces alloy costs, but also enhances the market competitiveness of Panzhihua automotive steel. Chassis parts, door inner panels, etc. made of this steel plate can significantly reduce weight while ensuring strength, providing support for automobile energy conservation, emission reduction and performance upgrades.

III. "Solid foundation" for energy infrastructure construction

Energy transmission projects have strict requirements on steel performance. In a large-scale infrastructure project in a complex geological environment in western my country, QStE340TM alloy steel plates are used for high-stress components and seismic supports of the transmission pipeline. The area is prone to frequent wind and sand erosion and large temperature differences, and traditional steel is not up to the task. QStE340TM, with its high strength and high corrosion resistance, can withstand complex stresses inside and outside the pipeline and significantly extend the life of components; its excellent welding adaptability also improves construction efficiency and lays a solid foundation for the safe operation of the project.

IV. Helping improve the efficiency of agricultural machinery

Agricultural machinery has extremely high requirements for reliability and durability in complex field operations. Some companies use QStE340TM alloy steel plates for large combine harvester frames and transmission parts. Its high strength and wear resistance significantly enhance the ability of agricultural machinery to cope with rugged terrain and high-intensity operations, effectively reduce the occurrence of failures, extend the life of equipment, and empower agricultural production efficiency.

V. Conclusion

QStE340TM alloy steel plate is expected to achieve application breakthroughs in more fields due to its excellent performance. Steel companies should continue to strengthen technological innovation, continuously optimize production processes, and improve product quality and performance to meet the increasingly diversified needs of the market and promote my country's steel industry to a higher level.

VI. About Bolaibao Metal

In the development of regional industries, Bolaibao Metal relies on the advantages of local industrial supporting facilities, integrates upstream and downstream resources, and works closely with suppliers and processing companies to build an efficient industrial chain ecosystem. Its promotion of QStE340TM alloy steel plates drives the development of supporting enterprises, attracts industry resources to gather, promotes the upgrading of Suzhou's metal material processing industry, and enhances the regional industry influence.

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