Zhen an Metallurgy
Ferro Silicon Magnesium
Zhen An Metallurgy provides you with ferro silicon magnesium and magnesium-silicon master alloys with different compositions. No matter which one you need, we can provide it!

Content of certain elements can be customized
For ductile iron
Size:10-50mm / 0-3mm/2-7mm / 200mesh
Spheroidizing/nodulant/nodularizers
Free Sample
Third-party inspection such as SGS / BV
Introduction to ferro silicon magnesium
Silicon-iron-magnesium alloy is an important metallurgical alloy, mainly used in casting and smelting industries. It is composed of three elements: silicon, iron and magnesium. The silicon content is usually between 30% and 70%, and the magnesium content is 5% to 20%. The iron content is usually between 15% and 40%. At the same time, we may also add a small amount of rare earth elements such as cerium (Ce) or lanthanum (La) to improve the properties of the alloy.
Zhen An Metallurgy provides you with silicon magnesium alloys and magnesium silicon master alloys with different compositions. No matter which one you need, we can provide it! In addition, our rare earth compositions can be customized to meet your different choices.
- FeSiMg alloy spheroidizing agent: can be used as an additive to promote the crystallization of graphite in ductile iron into a spherical shape, and can also cause the graphite in molten iron to precipitate in a spherical form.
- Rare earth ferrosilicon magnesium nodularizers: turns flake graphite into spherical graphite, significantly improves the strength of cast iron, and has the functions of degassing, desulfurization and deoxidation.
- Nickel-magnesium nodularizers: often used in the production of high-nickel austenitic ductile iron, so that the graphite balls after spheroidization are pure, have few inclusions, and are round after spheroidization.
- Low aluminum nodularizers: For castings that are prone to subcutaneous porosity defects and castings that require low aluminum content in molten iron, low silicon nodulant is suitable for foundries that use a large amount of recycled materials.
- Pure Ce and pure La nodularizers: added when casting iron, so that after spheroidization, there will be less pure inclusions and the graphite balls will be round.
- Yttrium-based heavy rare earth spheroidizer: suitable for large-section castings, which can delay the decline of spheroidization and prevent the formation of lumpy graphite.
- Antimony-containing nodulizing agent: used for pearlitic ductile iron.
- Low silicon spheroidizing agent: suitable for foundries that use a large amount of recycled materials.



Types Of ferrosilicon magnesium

Specifications of ferro silicon magnesium
| Brand | Code | Chemical Compositon (%) | |||||
| Mg | Re | Si | Ca | Al | Fe | ||
| FeSiMg6Re1 | 6-1 | 5.0-7.0 | 0.5-1.5 | 38-44 | 2.0-3.0 | <1.0 | Balance |
| FeSiMg7Re1 | 7-1 | 6.0-8.0 | 0.5-1.5 | 38-44 | 1.0-1.5 | <1.0 | |
| FeSiMg5Re2 | 5-2 | 4.0-6.0 | 1.0-3.0 | 38-44 | 2.0-3.0 | <1.0 | |
| FeSiMg7Re3 | 7-3 | 6.0-8.0 | 2.0-4.0 | 38-44 | 2.0-3.5 | <1.0 | |
| FeSiMg8Re3 | 8-3 | 7.0-9.0 | 2.0-4.0 | 38-44 | 2.0-3.5 | <1.0 | |
| FeSiMg8Re5 | 8-5 | 7.0-9.0 | 4.0-6.0 | 38-44 | 2.0-3.5 | <1.0 | |
| FeSiMg8Re7 | 8-7 | 7.0-9.0 | 6.0-8.0 | 38-44 | 2.0-3.5 | <1.0 | |
| FeSiMg10Re7 | 10-7 | 9.0-11.0 | 6.0-8.0 | 38-44 | 2.0-3.5 | <1.0 | |
- Standard Size: 0.6-6mm,1-12mm,5-25mm,4-30mm
- Packing: 25kg woven plastic bag in 1mt jumbo bag.
- Note: Chemical composition, size and packing of above mentioned products can be adjusted according to customer’s requirements.
| Type | Content of Elements | |||||||||
| % Re | % Ce/Re | % Mg | % Ca | % Si | % Mn | % Ti | % MgO | % Al | % Fe | |
| ReMgSiFe-01CeA | 0.5-2.0 | ≥46 | 4.5-5.5 | 1.0-3.0 | 45 | 1 | 1 | 0.5 | 1 | The rest |
| ReMgSiFe-01CeB | 0.5-2.0 | ≥46 | 5.5-6.5 | 1.0-3.0 | 45 | 1 | 1 | 0.6 | 1 | The rest |
| ReMgSiFe-01CeC | 0.5-2.0 | ≥46 | 6.5-7.5 | 1.0-2.5 | 45 | 1 | 1 | 0.7 | 1 | The rest |
| ReMgSiFe-01CeD | 0.5-2.0 | ≥46 | 7.5-8.5 | 1.0-2.5 | 45 | 1 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-03CeA | 2.0-4.0 | ≥46 | 6.0-8.0 | 1.0-2.0 | 45 | 1 | 1 | 0.7 | 1 | The rest |
| ReMgSiFe-03CeB | 2.0-4.0 | ≥46 | 6.0-8.0 | 2.0-3.5 | 45 | 1 | 1 | 0.7 | 1 | The rest |
| ReMgSiFe-03CeC | 2.0-4.0 | ≥46 | 7.0-9.0 | 1.0-2.0 | 45 | 1 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-03CeD | 2.0-4.0 | ≥46 | 7.0-9.0 | 2.0-3.5 | 45 | 1 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-05CeA | 4.0-6.0 | ≥46 | 7.0-9.0 | 1.0-2.0 | 44 | 2 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-05CeB | 4.0-6.0 | ≥46 | 7.0-9.0 | 2.0-3.0 | 44 | 2 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-07CeA | 6.0-8.0 | ≥46 | 7.0-9.0 | 1.0-2.0 | 44 | 2 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-07CeB | 6.0-8.0 | ≥46 | 7.0-9.0 | 2.0-3.0 | 44 | 2 | 1 | 0.8 | 1 | The rest |
| ReMgSiFe-07CeC | 6.0-8.0 | ≥46 | 9.0-11.0 | 1.0-3.0 | 44 | 2 | 1 | 0.1 | 1 | The rest |
- Our rare earth ingredients can be customized to meet your different choices!
- We have a large inventory of the above products, and the price is competitive, welcome to buy
| Type | Content of Elements | |||||||||
| %RE | %Y/RE | %Mg | %Ca | %Si | %Mn | %Ti | %MgO | %Al | %Fe | |
| REMgSiFe-01YA | 0.5-1.5 | ≥40 | 3.5-4.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-01YB | 0.5-1.5 | ≥40 | 5.5-6.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-02YA | 1.5-2.5 | ≥40 | 3.5-4.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-02YB | 1.5-2.5 | ≥40 | 4.5-5.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-02YC | 1.5-2.5 | ≥40 | 5.5-6.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-03YA | 2.5-3.5 | ≥40 | 5.5-6.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-03YB | 2.5-3.5 | ≥40 | 6.5-7.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.75 | 1 | Rest |
| REMgSiFe-03YC | 2.5-3.5 | ≥40 | 7.5-8.5 | 1.0-2.5 | 48 | 1 | 0.5 | 0.85 | 1 | Rest |
| REMgSiFe-04Y | 3.5-4.5 | ≥40 | 5.5-6.5 | 1.0-2.5 | 46 | 1 | 0.5 | 0.65 | 1 | Rest |
| REMgSiFe-05Y | 4.5-5.5 | ≥40 | 6.0-8.0 | 1.0-3.0 | 46 | 1 | 0.5 | 0.8 | 1 | Rest |
| REMgSiFe-06Y | 5.5-6.5 | ≥40 | 6.0-8.0 | 1.0-3.0 | 46 | 1 | 0.5 | 0.8 | 1 | Rest |
| REMgSiFe-07Y | 6.5-7.5 | ≥40 | 7.0-9.0 | 1.0-3.0 | 44 | 1 | 0.5 | 1 | 1 | Rest |
| REMgSiFe-08Y | 7.5-8.5 | ≥40 | 7.0-9.0 | 1.0-3.0 | 44 | 1 | 0.5 | 1 | 1 | Rest |
| Tips:Used in the production of high toughness and large section ductile iron, with proper addition of Ba(<2%), Bi(<0.5%), Sb(<0.5%) | ||||||||||
In addition to ferro silicon magnesium alloy blocks, we can provide you with ferro silicon magnesium cored wires, which have more uniform composition and particle size and better use effect. See more information: >>> Alloy cored wire
Silicon Magnesium Master Alloy
Magnesium silicon master alloy refers to an alloy formed by melting silicon and magnesium. It is a good spheroidizer and has a strong deoxidation and desulfurization effect.
Magnesium silicon alloy is generally used to make magnesium alloys. Magnesium alloys are the lightest structures and are therefore suitable for the automotive industry, which has increased concerns about vehicle weight and fuel economy. Silicon lowers the melting temperature without causing brittleness, increases fluidity, and reduces hot tearing.
| Item | Content of Mg (%) | Content of Si (%) |
| Mg-20Si | Balance | 20±2 |
| Mg-50Si | Balance | 50±2 |
| Mg-Si | Balance | Customized |
Size: Waffle-ingot/Notch-bar/Shot/Customize
Packing: 50Kgs bag, 500Kg steel drums and 1 Ton bags or as per customer requirement
Supply Ability: 1000MT/month,Various specifications and stable supply




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Note:Regarding above items, Feel free to contact me for an quotation if any purchase plan on pending, we try give you one more choice, one more support.
Properties of ferro silicon magnesium
ferro silicon magnesium can promote the spheroidization of graphite in cast iron, transforming graphite from flake to spherical, thereby improving the strength and toughness of cast iron.
The alloy has good deoxidation, desulfurization and degassing properties in the process of aluminum smelting and casting, which helps to improve the purity and quality of the metal.
Enhance the fluidity of cast aluminum alloys, reduce casting defects, and improve the quality of castings.
Improve the corrosion resistance of cast iron and aluminum alloys and extend the service life of products.
Rare earth ferro silicon magnesium manufacturers of zhen an metallurgical cSpheroidizing agent FeSiMg anufacturers has high cost performance due to low raw material procurement cost, low power cost and labor cost. choosing zhen’an as your partner can improve your company’s benefits.
As Rare earth ferrosilicon magnesium manufacturer and suppliers, we provide you with silicon magnesium alloys.
Application of ferro silicon magnesium
Used in ductile iron
The main function of ferro silicon magnesium alloy is to serve as a spheroidizer for ductile iron. Ductile iron is much stronger than gray cast iron and has better toughness, so it is more widely used and more popular.
Promote graphite spheroidization: ferro silicon magnesium alloy spheroidizer can promote the spheroidization of graphite in cast iron, transforming plate-shaped or angular graphite into spheroidal graphite, which is beneficial to improve the toughness and mechanical properties of cast iron.
Reduce grain boundary brittleness: Through spheroidization treatment, grain boundary brittleness is reduced, which helps to reduce the brittle fracture phenomenon of cast iron during use and improve the reliability of materials.
Increase the wear resistance of cast iron: Cast iron after spheroidization has a more uniform structure and better performance distribution, which can improve the wear resistance and abrasion resistance of castings.
For Casting industry
Ferro silicon magnesium can be used for casting aluminum alloys and magnesium alloys, and is an important alloy additive. Adding our silicon-magnesium alloy is very helpful to improve the quality of your castings.
Improve the mechanical properties of cast iron: Spheroidized cast iron has better plasticity and toughness. Ferro silicon magnesium can improve the strength, ductility and impact toughness of castings, and is suitable for engineering parts requiring high strength and high toughness.
Improve the surface quality of castings: Nodulant can reduce defects and holes in castings, and adding silicon-magnesium alloy can improve the surface quality and processing performance of castings.
Why choose Zhen An Metallurgy as your long-term partner?
30 years of production and sales experience:
Zhen An Metallurgy is located in Anyang City, Henan Province, China. It has 30 years of production experience and can produce high-quality silicon magnesium alloy sat according to user requirements.
Customized according to customer needs:
Zhen An Metallurgy has its own metallurgical experts, and the chemical composition, particle size and packaging of silicon magnesium alloy can be customized according to customer requirements.
Worry-free delivery:
The annual output of Zhen’an metallurgical ferro silicon magnesium is 1.5 million tons, and the spot inventory is 200,000 tons. The supply is stable and the delivery is timely.
Free samples:
Zhen An Metallurgical will give you the greatest support, and provide free ferro silicon magnesium samples.
Support third-party testing:
Zhen An Metallurgical has a strict quality control system. silicon magnesium alloy for steel making has been inspected more than 3 times before leaving the factory. At the same time, we accept third-party inspections such as SGS and BV to provide you with the greatest guarantee.
Manufacturer’s strength display:
Our factory covers an area of 30,000 square meters, with a full set of modern production equipment, two large-scale production bases such as hydrometallurgy, two key laboratories and a metallurgical material testing center with 16 senior researchers.
30000(m2)
Our factory covering an area of 30,000 square meters
1500000(Ton)
Annual production and sales more than 1,500,000 tons.
Professional team to provide you with better service
Zhen An Metallurgy has a high-quality talent team integrating sales, production and R&D, including 16 senior researchers, 28 professional engineers, 35 international sales personnel, 10 senior operation personnel, and more than 300 production technicians.
Zhen An metallurgical certificate display





Zhen An metallurgical certificate display
Our products have been exported to 78 countries, and many regular customers have visited our company and factory and placed multiple orders. After one cooperation, trust has been established with us, and customers will place orders multiple times, and some will introduce new customers to us.



What services does Zhen An provide you?
In order to meet the needs of different customers, we accept the following customization:
Customized product specifications: According to the specific needs of customers, you can provide silicon metal products with different specifications, including customized services in terms of chemical composition, size, shape, surface treatment, etc.
Customized packaging requirements: According to the specific needs of customers, you can provide different types of packaging materials and packaging methods to ensure the safety and stability of products during transportation and storage.
Customized product quality: According to the specific needs of customers, you can provide different product quality requirements, including customized services in terms of chemical composition, physical properties, surface treatment, etc.
In order to ensure the quantity and quality of the products you receive, we pay more attention to packaging:
High pressure resistance: Our packaging has sufficient pressure resistance to withstand the pressure and impact that may occur during stacking and transportation.
Anti-shock performance: Multi-layer packaging avoids possible shock and vibration during transportation, and protects the product from damage as much as possible.
Sealingperformance: add a layer of waterproof film, which has sufficient sealing performance, and can prevent air, moisture and other substances from entering the packaging, affecting the quality of raw materials.
Easy to carry: We generally use large bags that are easy to lift for packaging, which is easier to carry.
Eco-friendly and sustainable: Our packaging materials are environmentally friendly, allowing you to recycle or dispose of them safely without polluting your local environment.
If you want free samples, the process is as follows:
Contact us: Tell us your needs and contact information through the message form on the website, or send an email to our email andy@zaferroalloy.com.
Communication details: Our professional sales staff will recommend the most suitable products for you according to your needs, and ask you if you need samples. If you need samples, we will provide them to you for free.
Shipping and receipt: After the sample is shipped, we will inform you and track the logistics information of the sample to ensure that you can receive it on time.
The products provided by Zhen An Metallurgy can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that products comply with relevant standards and regulations.
Chemical analysis: Chemical analysis is one of the main methods for detecting the composition of ferro silicon magnesium. Spectrophotometry, atomic absorption spectroscopy and other techniques are usually used for analysis.
Metallographic analysis: Metallographic analysis is the observation and analysis of the microstructure of the alloy through a metallographic microscope.
X-ray diffraction analysis: X-ray diffraction analysis can be used to determine the structure and content of the crystalline phase in ferro silicon magnesium
Thermal analysis: It is used to study the thermal properties of silicon-magnesium alloys, including thermal stability, melting point and other parameters.








































