In China, the production of color coated sheets started relatively late, and the research began in the National Seventh Five-Year Plan. In the 20th century (early 1980s), several departments, such as metallurgy, chemical industry and light industry, entered into the scientific research and feasibility study on the production process and product application technology of organic coated steel sheets at the same time. It laid a solid foundation for the subsequent introduction of foreign production lines.
The first batch of color coated sheet production lines in China were introduced from the United States, Britain and Japan in the early 1980s. Mainly:
(1) WISCO Colour Coating Unit: 64,000 tons of design capacity, mainly produces colour coated panels for buildings.
(2) Baosteel No. 1 and No. 2 color coating units; design capacity is about 400,000 tons, mainly producing color coating panels for buildings.
(3) Anshan Iron and Steel Co., Ltd. newly rolled two color coating units: design capacity 300,000 t, mainly producing building and household appliances color coating plate.
(4) Unit of Beijing Door and Window Factory: annual output is 30,000 tons.
(5) Vertical coating unit of Guangzhou No.3 Rolling Mill: annual output 50,000 t.
At that time, this production process belonged to a new industry in China, and the advantages of the products were not fully recognized by the Chinese people. Coloured coated sheet was a luxury in the application of thin sheet at that time, so the output of the production line was not up after putting into operation. Most of the production lines were unsaturated. At last, the production lines of Angang and Guangzhou No.3 Rolling Mill were not satisfied. It can be shut down or transferred under the pressure of process defects and product costs.
At the end of the 20th century, the development of color coated panels in China ushered in a second climax. There are more than 20 color painting lines on the domestic scale, including numerous medium and small production lines. The annual production capacity has reached 1.5 million tons and entered the 21st century. More than 30 large enterprises such as Shougang, Bengang, Pangang, Handan Steel, Maanshan Steel, Dalian Pujin, Shunde Puxiang, Jiangsu Chunlan and Qingdao Haier have been built or under construction. The color painting production line with a scale of more than 100,000 tons has higher production capacity and higher equipment level. In addition, many private enterprises also invest in the production of color coated panels. Most of them use domestic equipment and have small production capacity, but they start fast and have low investment. Their products are mainly oriented to building materials and decoration industries. Foreign capital and some Taiwanese capital from Taiwan and China have also landed to build color coated panels, most of which are concentrated in coastal areas of China. From 2000 to 2004, the production increased at an average rate of 39.0%. By 2005, the national production capacity of color coated sheets was more than 8 million ta. There are also a number of color painting units under construction, at which time the national total production capacity will exceed 9 million VA or higher; the number and output of new color painting units outside the gold industry is more than that in the industry; the production of color painting plates is mainly concentrated in eastern and Northern China, according to incomplete statistics, the production capacity of these two areas will account for the whole country. The total production capacity of Guangdong Province is 6.5%, which is the highest in terms of provinces, accounting for about 10.1% of the total production capacity of the whole country.
According to statistics in recent years, China still needs to import 700-800,000 tons of color coated steel sheets from abroad every year, which shows that the development of color steel sheets still has a large market in China.