Stainless steel, by definition, is an iron-based alloy containing more than 10.5% chromium. This key chromium element plays a central role in the performance of stainless steel. When the chromium content reaches the standard, the steel surface will undergo a wonderful chemical reaction with oxygen to form a compact chromium oxide film (CR ɑ o ₃) only a few nanometers thick. Don't underestimate this thin film. It is like a loyal guard, closely isolated from water, oxygen and various corrosive media, making stainless steel have excellent corrosion resistance and unique "self-healing" ability.

The development of stainless steel is also very interesting. At the beginning of the 20th century, Harry brailly invented stainless steel. Since then, it has been widely used from its birth, and plays an indispensable role in modern industry and daily life. From building structural parts of high-rise buildings to tableware and kitchenware at home; Stainless steel can be found everywhere, from equipment and pipes in chemical production to surgical instruments in the medical field.

With the rise of green manufacturing and intelligent production technology in 2025, the stainless steel industry will usher in new changes. The global stainless steel production pays more attention to sustainable development, and the utilization rate of scrap steel is further improved. The hot rolling in the production process is carried out above the recrystallization temperature of the steel at about 1100 ° C to optimize the internal structure of the steel, while the cold rolling is carried out at a lower temperature to obtain accurate dimensions and smooth surfaces. With increasingly stringent environmental regulations, major producers have adopted hydrogen based steel production and carbon capture technology, increased the use of recycled steel, and transformed to electric arc furnace (EAF) to significantly reduce carbon dioxide emissions. At the same time, artificial intelligence (AI) and machine learning (ML) promote predictive maintenance, robotic welding and automated quality control, improve efficiency, reduce costs and waste, and intelligent factories monitor and optimize steel production in real time through IOT sensors.