Product Details
FeSi Alloy Granules Black Color High Silicon Content Used in
Deoxidizer and Alloy Agent
FeSi alloy granules, distinguished by their deep black hue, are
high-silicon metallurgical products engineered for dual roles as
deoxidizers and alloying agents in steel and foundry sectors. With
silicon levels often exceeding 70%, these granules leverage rapid
oxidation kinetics—their granular form increases surface area,
accelerating reaction with molten metal oxides (e.g., FeO) to form
lightweight slag, easily separated from the melt. This efficiency
reduces processing time and energy consumption, a boon for
high-throughput foundries. As alloying agents, the high silicon
content enhances steel’s strength, hardness, and heat resistance,
making it ideal for manufacturing tools, pipelines, and structural
components. The black color stems from controlled carbonization
during production, which also stabilizes the alloy, preventing
premature degradation. Compatible with electric arc and induction
furnaces, the granules ensure uniform distribution in melts,
avoiding localized deoxidation gaps. Their free-flowing nature
simplifies handling and dosing, reducing labor costs. For producers
prioritizing speed, precision, and performance, FeSi granules offer
a versatile, visually distinct solution to elevate metal quality
across diverse applications.
Specifications Ferro Silicon
| Grade | Chemical Composition % |
| Si | Al | S | C | P | Ca |
| ≥ | ≤ |
| FeSi75 | 75.0 | 1.5 | 0.02 | 0.1 | 0.035 | 1 |
| FeSi72 | 72.0 | 1.5 | 0.02 | 0.1 | 0.4 | 1 |
| FeSi70 | 70.0 | 1.5 | 0.02 | 0.1 | 0.4 | 1 |
| FeSi65 | 65.0 | 2 | 0.02 | 0.1 | 0.4 | 1 |
Sizes:0-1mm, 1-3mm, 3-10mm, 300mesh
Packing & Delivery
Packing: 25Kg/bag, 1MT/bag or as your requirements.
Remark: chemical composition and size can be optimized by the
customers' requirements.
FAQ
Q: How you can control your quality?
A: For each production processing, we have complete QC system for
the chemical composition and Physical properties.After production,
all the goods will be tested, and the quality certificate will be
shipped along with goods.
Q: What's your delivery time?
A: It usually needs about 20-45 days after receiving the deposit.
Q: Do you provide free samples?
A:Yes, we can provide a free sample for testing, If we have sample
in stock.The quantity based on the material type, The buyer should
bear all the shipping costs.
Company Profile
ZhenAn is an enterprise specializing in Metallurgical & Refractory
products , integrating production, processing, sales and importing
and exporting business.
We are focused on building a dedicated team of professionals across
the globe. At ZhenAn, we are committed to provide complete
solutions by delivering the “right quality & quantity” to suite our
customer’s processes.



Annual production and sales more than 150,000 tons. Our factory
covering an area of 30,000 square meters, it has a complete set of
modern production equipment, two large production bases including
hydro-metallurgy, two key laboratories and a metallurgical
materials testing center with dozens of senior researchers.