Ferrosulfur also called sulfur iron, is a chemical substance that belongs to a class. It is usually used in gray cast iron and steelmaking. Adding a certain amount of sulfur (content range is 0.08%-0.12%) in the production can increase the cutting ability of the product, thus improving the effect of pregnancy and the state of graphite.
Ferrosulfur produced by Zhenxin Metallurgy used in gray cast iron casting, its content control is very strict, if the content is too low will have an impact on the graphite breeding form. When the sulfur content is less than 0.05%, we need to add sulfur treatment to maintain overall product stability.
Gray cast iron in addition to the addition of Ferro sulfur to improve the cutting performance, but also can make the graphite length shorter, end blunt, the form of bending, thus improving the mechanical properties of gray cast iron parts.
Ferrosulfur specification and grade
| grade | chemical composition% | |||||
| S | C | Si | Mn | P | Fe | |
| FeS28 | 26-32 | ≦0.05 | ≦0.50 | ≦0.30 | ≦0.05 | ≧65 |
| FeS40 | 35-45 | ≦0.30 | ≦5.0 | ≦0.50 | ≦0.30 | ≧40 |
| FeS50 | 45-55 | ≦0.30 | ≦2.0 | ≦0.30 | ≦0.25 | ≧40 |
Applications of ferro sulfur
Application in sulfuric acid industry: It plays an important role in rubber, paper, textile, food, match and other industries as well as agriculture. In the field of national defense will be used to make all kinds of weapons and explosives. Iron sulfide in the refining out of the slag is ferrosulfur for iron and steelmaking, the production of slag in the iron content is not high when you can be used to make cement auxiliary materials to use.
Ferro sulfur in metal smelting industry: Used as raw material in metal smelting industry.
The price of Ferrosulfur in China market
China’s Ferro sulfur is mainly concentrated in central, southern and eastern China, with good quality and few impurities. Henan is located in the main transportation routes, resources are convenient, thus stimulating the overall development momentum of ferroalloy production in Henan market, from the perspective of the development of the market scale in the past two years, the sulfurous iron ore industry is in the midst of booming development, along with the foreign trade exports as well as the recovery of the economy, sulfurous iron ore prices fluctuate.As its downstream product, ferrosulfur will also be affected to a certain extent.