46 Mesh Iron Pyrite / Ferrous Sulphide
Product parameters
- ★ Product Name: Iron Pyrite (Ferrous Sulphide)
- ★ Appearance: Grey/Yellow Metallic Granules
- ★ Particle Size: 46 Mesh (Approx. 0.3-0.4mm)
- ★ Sulphur (S): 48% Min
- ★ Iron (Fe): 42%-45%
- ★ SiO2: 2.0% Max
- ★ Moisture 0.5% Max
- ★ Packing: 25kg/bag or 1000kg/jumbo bag
Product information PDF
Product details parameters

Why 46 Mesh Iron Pyrite is Essential for Your Industrial Process
Our 46 mesh iron pyrite (Ferrous Sulphide) is engineered for precision. At this specific particle size (approx. 0.3mm - 0.4mm), it offers the perfect balance between surface area reactivity and structural integrity.
1. High-Performance Abrasives & Grinding Wheels
In the manufacturing of resin-bonded grinding wheels, 46 mesh pyrite acts as a critical active filler:
- Heat Dissipation: It reacts endothermically during the grinding process, helping to absorb and dissipate heat, preventing the workpiece from burning.
- Reduced Wheel Wear: By acting as a solid lubricant at high temperatures, it reduces the friction between the wheel and the metal, significantly extending the service life of the abrasive tool.
- Anti-Clogging: It helps prevent the "glazing" of the wheel surface, ensuring a consistent and aggressive cut.
2. Friction Materials (Brake Pads & Linings)
For heavy-duty automotive and industrial braking systems:
- Friction Stabilization: 46 mesh granules help maintain a stable friction coefficient across a wide range of operating temperatures.
- Noise Reduction: The precise grain size helps in dampening vibrations, leading to quieter braking performance.
- Oxidation Control: At high temperatures, the sulphur release helps manage the oxidation of metallic components within the friction formula.
3. Metallurgical & Foundry Applications
- Resulphurization: Ideal for electric furnace smelting where precise sulphur addition is required to improve the machinability of steel without introducing unwanted fine dust.
- Slag Conditioning: Used in specific smelting processes to control slag fluidity and improve metal recovery rates.
FAQ Section
Q1: Why is 46 mesh the preferred size for the abrasive industry?
● A: 46 mesh is considered a "medium-coarse" grade. It is large enough to remain embedded in the resin bond during heavy grinding but small enough to provide a high surface area for chemical reaction. This prevents the "popping out" effect that larger grains might suffer under high centrifugal force.
Q2: How do you ensure the chemical consistency of your Iron Pyrite?
● A: We implement strict raw material sourcing from our own audited mines. Every batch of 46 mesh pyrite undergoes rigorous laboratory testing for Sulphur (S) and Iron (Fe) content, as well as impurity limits (SiO2, H2O). A Certificate of Analysis (COA) is provided with every shipment.
Q3: Can 46 mesh Iron Pyrite be used in amber glass production?
● A: While 46 mesh can be used, many glass manufacturers prefer a finer powder for faster melting. However, 46 mesh is excellent for specific smelting processes where a slower, controlled release of sulphur is required. We can provide finer meshes (e.g., 150 mesh) if your glass process requires it.
Q4: What is the standard packaging and shelf life?
● A: Our standard packaging is 25kg moisture-proof bags or 1000kg-1200kg jumbo bags. When stored in a cool, dry, and ventilated warehouse, the product has an almost indefinite shelf life, though we recommend usage within 24 months for optimal performance.
Q5: Do you provide samples for laboratory testing?
● A: Yes. We understand that industrial formulas require precision. We offer 1kg - 5kg free samples for R&D and quality verification purposes. (Shipping costs to be discussed based on location).
Product details parameters
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Cooperating suppliers
It is a long-term supplier of pyrite to JFE in Japan and also a long-term supplier to Zewu in Japan.
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Production guarantee
Strict quality control, the use of modern production management processes, and complete supporting equipment ensure timely delivery of high-quality products.
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Quality assurance
The product quality is visible and the latest third-party professional testing reports can be provided for free; Welcome to visit the factory on site.
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product guarantee
Excellent product quality: Our company's products undergo strict inspection before leaving the workshop, and a complete quality control system provides a good guarantee for producing excellent products. Quality certification through ISO-9001.
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