Ferro Silicon Magnesium alloy is one of the most important inputs in the manufacturing process of spheroidal graphite iron and find usage in low carbon grades of steel due to their low carbon content.

The primary uses of ferro silicon magnesium include

1. Steel-making: Deoxidizer and alloy agent.

2. Cast iron: Inoculants and ball agents.

3. Ferroalloy: reducing agent.

Size:10-50mm,10-100mm

Packing:1mt/big bag

一、What is rare earth silicon magnesium alloy？
   (1)Rare earth magnesium iron alloy refers to an alloy made by adding calcium, magnesium, and rare earth elements to silicon iron, also known as magnesium alloy spheroidizing agent. Adding nodular graphite as a spheroidizing agent in the production of ductile iron can significantly improve the strength of cast iron by transforming flake graphite into spherical graphite, which has the functions of degassing, desulfurization, and deoxygenation. It is increasingly used in the metallurgical and casting industries. Magnesium is the main spheroidizing element, which directly affects the spheroidizing effect of graphite

   (2)Rare earth magnesium silicon iron alloy refers to an alloy prepared by adding calcium, magnesium, and rare earth elements to silicon iron, also known as magnesium alloy spheroidizing agent. It is added as a spheroidizing agent in the production of ductile iron, transforming flake graphite into spherical graphite, which can significantly improve the strength of cast iron, and has the functions of degassing, desulfurization, and deoxygenation. Its use in the metallurgical and casting industries is increasing day by day.

二、What are the uses of rare earth silicon magnesium alloys？
    Rare earth silicon magnesium alloy is used as a spheroidizing agent in casting. Its function is to spheroidize the graphite in the cast iron, thereby enhancing the performance of the casting. Main ingredients: magnesium, a small amount of rare earth, silicon, and a small amount of calcium and barium. Magnesium plays a major role in spheroidization. Magnesium in rare earth silicon magnesium alloys is divided into effective magnesium and ineffective magnesium. Only magnesium in the free state (metallic state) is effective magnesium, and magnesium oxide produced by magnesium burning during the production process of spheroidizing agents is ineffective magnesium.

三、What are the functions of rare earth silicon magnesium alloys？
  （1）Melt purification Rare earth elements have the function of removing hydrogen, oxygen, sulfur, iron, and inclusions from magnesium alloy melt, achieving the effect of degassing, refining, and purifying the melt.

  （2）Melting protection Magnesium alloys are prone to oxidation and combustion during the smelting process. In industrial production, magnesium alloys are generally melted using flux coverage or gas protection methods, but there are many drawbacks. If the ignition temperature of magnesium alloy melt can be increased, it is possible to achieve direct melting of magnesium alloy in the atmosphere, which is of great significance for the further promotion and application of magnesium alloy. Rare earth is a surface active element in magnesium alloy melt, which can form a dense composite oxide film on the surface of the melt, effectively preventing contact between the melt and the atmosphere, and greatly improving the ignition temperature of magnesium alloy melt.

  （3）Fine grain strengthening The enrichment of rare earths in the front of the solid-liquid interface causes undercooling of the composition, forming new nucleation zones and small equiaxed crystals in the undercooled zone. In addition, the enrichment of rare earths hinders α- The growth of Mg grains further promotes grain refinement. According to the Hall2Pitch formula, the strength of the alloy increases with the refinement of grain size. Compared with body centered cubic crystals and face centered cubic crystals, grain size has a greater impact on the strength of densely packed hexagonal metals. Therefore, the strengthening effect of magnesium alloy grain refinement is extremely significant.

    (4)Solution concentration Most rare earth elements have high solid solubility in magnesium. When rare earth elements dissolve in the magnesium matrix, the difference in atomic radius and elastic modulus between rare earth elements and magnesium leads to lattice distortion in the magnesium matrix. The resulting stress will hinder the movement of dislocations, thereby strengthening the magnesium matrix. The main effect of solid solution strengthening with rare earth elements is to slow down atomic diffusion rate, hinder dislocation movement, thereby strengthening the matrix, improving the strength and high-temperature creep performance of the alloy.

    (5)Diffusion enhancement Rare earth elements and magnesium or other alloying elements form stable intermetallic compounds during the solidification process of the alloy. These intermetallic compounds containing rare earths generally have the characteristics of high melting point and high thermal stability. They are dispersed as small compound particles in grain boundaries and grains, capable of pinning grain boundaries at high temperatures, inhibiting grain boundary slip, hindering dislocation movement, and strengthening the alloy matrix.

   (6)Precipitation strengthening As the temperature decreases, the high solid solubility of rare earth elements in magnesium decreases. When the high-temperature single-phase solid solution rapidly cools, unstable supersaturated solid solutions are formed, and after long-term aging, small and dispersed precipitates are formed. The interaction between precipitates and dislocations enhances the strength of the alloy.

四、What are the advantages of rare earth silicon magnesium alloys in metallurgy?
   The addition of rare earth metals, fluorides, and silicides to steel can play a role in refining, desulfurization, neutralizing low melting point harmful impurities, and improving the processing performance of steel; Rare earth silicon iron alloy and rare earth silicon magnesium alloy are used as spheroidizing agents to produce rare earth ductile iron. As this type of ductile iron is particularly suitable for producing complex ductile iron parts with special requirements, it is widely used in mechanical manufacturing industries such as automobiles, tractors, and diesel engines; The addition of rare earth metals to non-ferrous alloys such as magnesium, aluminum, copper, zinc, and nickel can improve the physical and chemical properties of the alloys, as well as enhance their room temperature and high-temperature mechanical properties.

五、What are the main factors that contribute to the price difference of rare earth silicon magnesium alloys?
 （1）Differences in raw material costs: The production raw materials for rare earth magnesium silicon iron alloys mainly include rare earth, magnesium, silicon, and iron. The cost of purchasing raw materials may vary among different regions and enterprises, for example, the prices of rare resources such as rare earths and magnesium may vary in different regions, leading to price differences in alloys

   (2)Production process differences: The production process of rare earth magnesium silicon iron alloy involves multiple links, such as raw material ore selection, smelting, smelting, refining, and so on. Different regions and enterprises may adopt different production processes and equipment, which can affect the production efficiency and cost of alloys, leading to price differences.

   (3)Market demand and supply situation: The price of rare earth magnesium silicon iron alloy is also affected by market demand and supply situation. If there is strong market demand, insufficient supply, and relatively high prices; On the contrary, if market demand is weak, there is oversupply, and prices are relatively low.

   (4)Product quality and brand effect: The quality and brand of rare earth magnesium silicon iron alloy also affect the price of the product. Some large brand products, due to their high quality and reputation, are often able to be sold at higher prices; Some products with poor quality or low brand awareness may have relatively lower prices.

   (5)The impact of policies and regulations: Rare earth magnesium silicon iron alloy, as a key material, may be affected by different policies and regulations in different regions and countries, such as export taxes, quota restrictions, environmental requirements, etc. The differences in these policies and regulations can also lead to price differences in alloys.

   (6)In summary, the price difference of rare earth magnesium silicon iron alloy is mainly caused by factors such as differences in raw material costs, production processes, market demand and supply conditions, product quality and brand effect, as well as the influence of policies and regulations. The differences in these aspects among different regions and enterprises may lead to differences in alloy prices.