Flake graphite powder
Flake graphite powder is a natural graphite material widely used in industrial production where lubrication, thermal stability, and cost control are key considerations. With its layered crystal structure and reliable physical properties, it remains a practical choice for customers who need a stable, easy-to-source carbon material for large-volume applications.
Product Description
Flake graphite powder is produced from selected natural flake graphite ore through crushing, grinding, and screening processes. The powder retains the characteristic lamellar (flake-like) structure of natural graphite, which gives it excellent lubricity and chemical stability.
Compared with micronized graphite, flake graphite powder emphasizes structural integrity and cost efficiency rather than ultra-fine particle control. It is commonly chosen for applications where performance reliability and supply stability matter more than extreme precision.
Standard Specifications (Fast Selection Guide)
Particle Size Options
Flake graphite powder is typically supplied in the following mesh sizes:
+50 mesh / +80 mesh – coarse flakes
+100 mesh / +150 mesh – medium flakes
-200 mesh / -325 mesh – fine flake powder
Custom sieving ranges can be arranged based on application needs.
Typical Technical Parameters
| Property | Standard Range |
|---|---|
| Fixed Carbon | 90% – 99% |
| Ash Content | 1.0% – 10% (depending on grade) |
| Moisture | ≤ 0.5% |
| Bulk Density | 0.3–0.7 g/cm³ |
| Structure | Natural flake / lamellar |
Exact values depend on carbon grade and particle size; detailed data available before ordering.
Key Product Advantages
Natural Lubricity
The layered crystal structure allows graphite flakes to slide easily under pressure, reducing friction and wear. This makes flake graphite powder especially suitable for mechanical systems, refractory formulations, and high-load environments.
High Temperature Resistance
Flake graphite remains stable at high temperatures in inert or reducing atmospheres. It does not melt and maintains its structure, which is why it is widely used in refractories, casting coatings, and metallurgical processes.
Chemical Stability
The material is resistant to most acids, alkalis, and solvents. This stability supports long-term use in chemically demanding environments without degradation.
Cost-Effective Performance
Compared with synthetic or ultra-fine graphite products, flake graphite powder offers an excellent performance-to-cost ratio. For large-scale industrial use, this balance is often the deciding factor.
Common Application Areas
Refractories and Foundry Industry
Used in refractory bricks, ramming masses, and casting coatings to improve thermal shock resistance and reduce metal adhesion.
Lubricants and Industrial Greases
Added to oils, greases, and dry lubricants for enhanced wear resistance under high load or high temperature conditions.
Metallurgy and Casting
Functions as a carbon raiser, release agent, or protective coating in steelmaking and non-ferrous metal casting.
Brake Materials and Friction Products
Applied in brake linings and friction components where controlled friction behavior is required.
Battery and Energy (Traditional Applications)
Used in certain battery-related processes where natural graphite is preferred for its structure and cost efficiency.
Packaging and Supply Options
To simplify logistics and ordering, flake graphite powder is typically supplied in:
25 kg bags (standard export packaging)
500 kg / 1,000 kg jumbo bags
Customized packaging available upon request
All packaging is designed to be moisture-resistant and suitable for long-distance transportation.