Silicon Manganese

Silicon Manganese

Silicon-manganese alloy((SiMn) is a metallic ferro alloy composed of manganese, silicon, iron, and a small amount of carbon and other elements. It is also a widely used ferroalloy at present. The m...

Description of Silicon Manganese

Silicon-manganese alloy((SiMn) is a metallic ferro alloy composed of manganese, silicon, iron, and a small amount of carbon and other elements. It is also a widely used ferroalloy at present. The melting temperature range of ferromanganese alloy containing sufficient silicon is 1075°C-1320°C. Most of them are smelted in open and fixed submerged heat electric furnaces. In recent years, rotary and closed electric furnaces have been used for production. ferrosilicon manganese is a reducing agent for smelting medium and low-carbon ferromanganese and metal manganese, and it is also used as a compound deoxidizer, alloy agent, and desulfurizer in steelmaking production. Usually, 40% is used as a reducing agent, and 60% is used as a deoxidizer and alloying agent.

Silicon-manganese alloy                                            

Silicon-manganese Alloy

Specification of Silicon Manganese

Grade Chemical Composition
Mn Si C ≤ P≤ S≤
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
FeMn64Si23 60.0~67.0 20.0~25.0 1.2 0.10 0.15 0.25 0.04
FeMn68Si18 65.0~72.0 17.0~22.0 1.8 0.10 0.15 0.25 0.04
FeMn64Si18 60.0~67.0 17.0~20.0 1.8 0.10 0.15 0.25 0.04
FeMn68Si16 65.0~72.0 14.0~17.0 2.5 0.10 0.15 0.25 0.04
FeMn64Si16 60.0~67.0 14.0~17.0 2.5 0.20 0.25 0.30 0.05

Silicon Manganese Use

The silicon and manganese in the SiMn alloy have a strong affinity with oxygen. The oxides produced by using the ferro silico manganese in molten steel have the advantages of low melting point, easy floating, large particles, and good deoxidation effect. If manganese and silicon are used for separate deoxidation under the same conditions, the burning loss rate will be higher than that of ferro silicon manganese, so it is considered an indispensable composite deoxidizer and alloy additive in the iron and steel industry.

As the main member of ferroalloy, manganese silicon alloy is used in a wide range of modern industries and economies. Similar to the downstream applications of ferroalloys, ferrosilicomangenet are mainly used in the iron and steel industry, and the amount of manganese used accounts for more than 90% of the total. A small number of manganese-silicon alloys are also used in the chemical industry, light industry, building materials industry, electronics industry, and other fields.


Ferrosilicon Manganese

Silico-manganese Production Method

Similar to the production process of other ferroalloys, silicomanganese is mainly catalyzed by carbon, and under the continuous production of lime, dolomite, fluorite, etc. as fluxes, manganese ore, and silica are reduced to manganese oxide in a submerged arc furnace. and silicon dioxide and refining.

Production Material of SiMn

The production of manganese silicon mainly requires manganese ore, silica, iron-containing raw materials, coke, lime, dolomite, fluorite and other raw materials. Among them, the production quality of manganese silicon is mainly affected by the main raw material of manganese ore. In addition, the production of manganese ferro silicon also requires power consumption and changes in electricity prices will also have a certain impact on the manufacture of manganese-silicon alloys.

Ferro Silicon Manganese Prices Factors

Silicon manganese is an essential material for steelmaking. The prices of related products, national industrial policies, environmental protection policies, and seasonal factors will all affect the price fluctuations of manganese-silicon alloys.

1. Upstream Cost Factors of Manganese Silicon Production

From the perspective of the manganese silicon production process, the production of manganese silicon mainly requires materials such as manganese ore, coke and fuel power consumed by electricity. Among them, the cost of manganese ore accounts for about 55%-60%, the cost of electricity accounts for about 20%-30%, and the cost of coke accounts for about 10%-15%.

2. Impact of downstream steel industry demand

The iron and steel industry is a downstream industry with a large proportion of ferrosilicon manganese, and its prosperity directly affects the price trend of ferro silico manganese. The development of the steel industry is mainly affected by the infrastructure investment cycle and related policies.

3. National Policy Impact

Since electricity accounts for about 20%-30% of the production cost of manganese silicon, manganese ore accounts for more than half. Therefore, policy changes related to related resources will have a greater impact on the price of manganese and silicon.

4. Funding impact of major institutions

The capital promotion of the main institutions has a very significant role in promoting the price of manganese and silicon. The important market prices of many varieties of black series will be accompanied by the reality that the main institutions are driven by funds. Due to the continuous sharp drop in the entire industry chain of black varieties, speculative funds have gradually withdrawn.

5. Seasonal factors

Judging from the price trend of silicon manganese alloy futures in the past five years, usually, manganese-silicon will have a certain increase at the end of the first quarter and the beginning of the third quarter. In the middle of the year and the end of the year, due to the off-season consumption of steel companies, steel mills have insufficient demand for silicon manganese alloys, so the price of manganese-silicon alloys is not high during these two periods.

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