After nearly three years of systematic research and continuous improvement, TISCO has achieved stable supply of precipitation hardening SUS630 stainless steel cold-rolled sheet products, and has become the only domestic enterprise that can provide such products. This product solves the bottlenecking problem of key fundamental materials in China's electronic circuit industry, and helps China's printed circuit board (hereinafter referred to as "PCB") industry to move towards high-end.

PCB is the carrier for integrating electronic components and realizing control functions, and plays a vital role in electronic product industry. PCB is the focus of science and technology competition among countries, and belongs to the national strategic technology scope. Its downstream applications cover 5G, automotive electronics, consumer electronics, industrial control equipment, medical electronics and etc. It is the core content of Made in China 2025. In recent years, China has made great efforts to develop the PCB industry, and now has developed itself into the largest PCB producer in the world. The Chinese PCB has seen a gradual upgrade from low-end to high-end.

As one of the essential basic materials in the production of electronic circuit industry, precipitation hardening stainless steel SUS630 is widely used in the hot lamination of PCB, whose security and stability are directly linked to the material’s quality. For many years, the production technology and procurement channels had been controlled by a few countries rather than China. With the rise of high-tech industries such as 5G, Internet of Things, smart medical care, autonomous driving, wearable devices, etc., the demand for SUS630 materials in the electronic circuit industry has increased substantially and become increasingly prominent for China’s manufacturing industry. TISCO's production, marketing and research team jointly developed the material with partner enterprises, accurately designed the material according to users’ requirements, and strictly implemented the quality control through the whole process. At present, the linear expansion coefficient, flatness, thickness fluctuation on one plate, surface quality and surface roughness of SUS630 produced by TISCO can fairly meet the strict requirements of users, and successfully move from the laboratory into the market, realizing stable commercial supply.

In the future, TISCO will continue to carry forward the spirit of craftsmanship, bravely be the vanguard of innovation and development, take developing the key basic materials for national manufacturing industry as its mission, never forget the initial intention to serve the country, and constantly demonstrate the strength of TISCO in the research and development and manufacturing of core materials.