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Silicon Manganese
- Specifications: FeMn65Si17/FeMn60Si14 and etc.
- Shape: Lump/Grain/Powder
- Usage: Foundry Industry/Steel Industry
- Particle size: 0-3mm, 3-10mm, 10-50mm, 50-100mm or as customers' requirements
Silicon-manganese alloy is an alloy composed of Mn,Si, iron and a small amount of carbon and other elements. Wide use, high output. Its consumption ranks second in electric furnace ferroalloy products. Silicon Manganese is used as a deoxidizer and an alloying element in steel.
| SiMn Grades | Chemical Component (%) | ||||||
| Mn | Si | C | P | S | |||
| I | II | III | |||||
| <= | |||||||
| FeMn64Si27 | 60.0-67.0 | 25.0-28.0 | 0.5 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn67Si23 | 63.0-70.0 | 22.0-25.0 | 0.7 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn68Si22 | 65.0-72.0 | 20.0-23.0 | 1.2 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn62Si23 | 60.0-<65.0 | 20.0-25.0 | 1.2 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn68Si18 | 65.0-72.0 | 17.3-20.0 | 1.8 | 0.10 | 0.15 | 0.25 | 0.04 |
Silicon Manganese Application
SiMn is often used in steel mill production. The Mn and Si in the silicon-manganese alloy have a strong affinity for oxygen.
The melting points of the deoxidized products MnSiO3 and Mn2SiO4 are 1270℃ and 1327℃, respectively. It has the advantages of low melting point, large particles, easy to float, and good deoxidation effect.
Under the same conditions, when Mn or Si is used alone for deoxidation, the burning rate is 46% and 37%, respectively. With Silicon-manganese alloy deoxidation, the burning loss rate of the two is only 29%. Therefore, it has been widely used in steelmaking.
The growth rate of SiMn output is higher than the average growth rate of ferroalloys and higher than that of steel. It has become an indispensable composite deoxidizer and alloy additive in the steel industry.
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