low-carbon ferrochrome

Ferrochrome is an iron alloy with chromium and iron as the main components, and is one of the main alloying agents used in the iron and steel industry. Ferrochrome has high hardness and good wear resistance. The addition of chromium to steel can significantly improve the oxidation resistance of steel and increase the corrosion resistance of steel. Ferrochrome contains 55%-75% chromium. According to the different carbon content, ferrochrome can be divided into high-carbon ferrochrome, medium-carbon ferrochrome, low-carbon ferrochrome and micro-carbon ferrochrome. The carbon content of high-carbon ferrochrome is 4-10%, the carbon content of medium-carbon ferrochrome is 0.5-4%, the carbon content of low-carbon ferrochrome is 0.15-0.5%, and the carbon content of micro-carbon ferrochrome is less than 0.15%.

The smelting methods of micro-carbon ferrochrome include electro-silicon thermal method, hot mixing method, etc. It is mainly used to improve the oxidation resistance and corrosion resistance of steel, so that a layer of strongly attached oxide film is formed on the surface of steel in an oxidizing atmosphere, and then oxidized Stop or slow down the oxidation rate. Micro-carbon ferrochrome is mainly used in the production of stainless steel, wear-resistant and heat-resistant steel. In 2020, the total production capacity of high-carbon ferrochrome nationwide will be 12.858 million tons, an increase of 585,200 tons compared with 12.2728 million tons in 2019. Among them, Inner Mongolia has a production capacity of about 5.85 million tons, accounting for 47%, nearly half of the country; followed by Sichuan and Shanxi, with production capacities reaching 1.07 million and 1.03 million tons respectively. In 2020, China's apparent consumption of stainless steel will be 24.05 million tons, a year-on-year increase of about 6.5%. China's stainless steel consumption terminals are relatively scattered, mainly concentrated in automobiles, home appliances, real estate and manufacturing and other related aspects. Overall, since 2017, the growth rate of domestic stainless steel consumption has been 5.3%, 7.4%, 12.8%, and 6.5%, respectively, and the overall growth rate is higher than the output growth rate. In the medium and long term, there is still room for growth in China's per capita stainless steel consumption. Although China's per capita stainless steel consumption has reached the level of developed countries in the world, in 2020, China's per capita stainless steel consumption is 18.3kg.

Compared with China's per capita GDP level, China's stainless steel consumption has exceeded the normal level; but compared with Japan, South Korea, Germany and other major manufacturing countries, China's stainless steel consumption still has a certain room for improvement. With the rise of China's per capita GDP, China's per capita stainless steel consumption is expected to remain stable in the future. In addition, China's stainless steel production capacity will be put into operation in the future.