The Development Direction of Micro-alloyed Steel Products in China
Abstract
Micro-alloyed steel products are widely used in many areas in China. In the future, with the enhancement of Chinas industrial advantages, the production and application of micro-alloyed steel products will be further developed and enriched. This article examines the development direction of micro-alloyed steel products, which include the development and application of alloys, productivity, and improvement of the performance of alloys.
Introduction
Micro-alloyed steel enjoys a wide range of uses and is a traditional commonly used material in China. Micro-alloyed steel products are widely used in the fields of energy and transportation, and can also be seen in civil construction, shipbuilding, oil pipeline and pressure vessels. As the most widely seen medium and low alloy steel products in China, micro-alloyed steel occupies a major share of the steel market.
Given the profile of Chinas industrial landscape, the development of micro-alloyed steel has a profound significance. Therefore, to achieve economic and social sustainable development, it is imperative to deeply explore the development trend of micro-alloyed steel products.
Development and Application of Alloys
With the development of metallurgy technology, modern metallurgical engineering is making great progress and micro-alloyed steel has achieved tremendous success. At present, the development of alloys is mainly embodied in the aspects of production and application. Firstly, to enhance the high-temperature performance and corrosion resistance of steel, additive elements such as rare earth elements, molybdenum, nickel, titanium and etc. can be added to increase the content of metal elements. Secondly, to reduce the coarser and lower metallographic structure of steel, elements such as boron, nitrogen and other metal elements can be added. Thirdly, the manufacturers have made a number of improvements on production process, such as increasing the parameters of hot working and strengthening the rolling process to increase the purity of steel and prolong the rolling time, which not only meets the requirement of recrystallization, but also makes it easier for steel to achieve ductility and hardening.
Productivity and Quality Enhancement
Steel smelting efficiency has been improved by an order of magnitude. In terms of the improvement of production process, after the adoption of advanced rolling technology, the smelting of micro-alloyed steel products is carried out in a continuous production line, and the production capacity is greatly improved, which has reached the worlds leading level.
In response to the changing market demand, the production of low-carbon micro-alloyed steel products has been consistently improved. The application performance of low-carbon micro-alloyed steel far exceeds that of high-carbon steel products. Low-carbon micro-alloyed steel can obtain the performance of high corrosion resistance and good weldability, which greatly reduces the production cost and greatly improves the efficiency of steel production.
Improvement of Performance
By virtue of the rapid development of technology, the production of micro-alloyed steel can meet the needs of end users in many aspects. The alloying elements in steel have been significantly improved. As a result, the performance of micro-alloyed steel naturally gets an improvement, such as high-temperature plasticity, high strength, good plastic properties and high temperature oxidation resistance. In addition, the microstructure of steel can also be effectively controlled, thereby further improving the strength and toughness of steel.
Conclusion
As the most widely used material in China, the development of micro-alloyed steel has great significance. In the future, in line with the trend of economic and technological development, the development and research of micro-alloyed steel products should focus on the allocation of alloy elements, the improvement of production processes, the improvement of performance, and the enhancement of productivity and quality. By strengthening research and development in these directions, it is believed that the development of micro-alloyed steel will be of great help to the national economic development.
