China's leading precision stainless steel strip and foil manufacturers produced 0.02mm ultra-thin stainless steel foils, which were successively exported to developed countries such as Germany and Japan in August 2019.
Ultra-thin stainless steel foil has the characteristics of ultra-thin, good processing performance and easy forming. Compared with other non-ferrous metal foils, it has higher strength and hardness and is a key material in high-end fields and other industries. 0.02mm is the thinnest stainless steel strip in the world at present. Its quality requirements are very high. It can be called the best of stainless steel. It is mainly reflected in: the thickness accuracy is high, only ±0.002mm; the plate shape is flat and the surface has no "flocculent" traces. ; The surface color is uniform, without fancy printing and color difference; good corrosion resistance, excellent processing performance, excellent comprehensive performance, etc.
“The production of ultra-thin stainless steel foil is very difficult and the process is complicated. At present, only Japan and Germany can mass produce. The value of the product is very large. It is not measured in tons but sold in grams. All domestic demand is dependent on imports." Li Jun of TYGT said that ultra-thin stainless steel foil can be widely used in aerospace sensor diaphragms, flexible folding screen backplanes, radiation protection suits, large flexible solar substrates, automotive airbags, precision engines, etc. High-end areas, and with market expansion, the promotion and use of high-end areas are increasing.