Fused Silica Granules 1–3 mm
High-purity 1–3 mm fused silica granules for refractory, ceramic, foundry and investment-casting applications, with low thermal expansion, strong thermal stability and controlled granular form.
Specifications
- Mesh Size
- 120mesh,200mesh,325mesh,600mesh,800mesh,1250mesh,2000mesh,2500mesh,3000mesh,5000mesh
- Particle Size
- 3-5mm,1-3mm,1-0.5mm,0.5-0.2mm,0.1-0.2mm,0.1-0mm(120mesh),0.075mm(200mesh)
- SiO₂ Content
- 99.8-99.99%
- Bulk Density
- 1.0~1.5 g/cm³
- Specific Gravity
- 2.20 g/cm³
- Thermal Expansion
- 0.5*10⁻⁶
- Moh's hardness
- 7
Granular Grade for Thermal-Performance Formulations
Fused Silica Granules 1–3 mm
Fused Silica Granules 1–3 mm are a controlled granular form of amorphous silica for industrial users who need low thermal expansion, strong thermal stability and reliable handling in refractory, ceramic, foundry and selected investment-casting systems.
Controlled Granules for Multiple Applications
The 1–3 mm grade provides a practical aggregate form for customers comparing fused silica in thermally demanding formulations. Its amorphous structure, low thermal expansion and resistance to rapid temperature change support evaluation across several industrial systems. Final suitability should be confirmed through application testing.
Applications for 1–3 mm Fused Silica Granules
For castables, ramming mixes and thermal-resistant linings where fused silica’s thermal behavior is relevant.
For ceramic bodies and engineered formulations requiring a controlled granular silica source.
For foundry formulations where aggregate size and resistance to temperature change are important.
For selected backup or aggregate uses, subject to the customer’s process and confirmed specification.
Why Use 1–3 mm Fused Silica Granules
- Low thermal expansion: useful where dimensional stability during heating and cooling is important.
- Thermal shock resistance: supports evaluation in refractory, ceramic and casting systems.
- Low thermal conductivity: relevant to selected heat-management and insulating formulations.
- Controlled granular form: suitable for aggregate blending and application-specific grading.
Fused Silica Physical Properties
| No. | Property | Reference Value |
|---|---|---|
| 1.1 | Composition | SiO₂ |
| 1.2 | Structure | Amorphous |
| 1.3 | Colour | Transparent or white |
| 1.4 | Melting Temperature | approx. 1750°C |
| 1.5 | Specific Gravity | 2.21 g/cm³ |
| 1.6 | Hardness | 7 Mohs |
| 1.7 | Thermal Expansion | 0.5 × 10⁻⁶ |
Fused Silica Chemical Properties
| No. | Component | Investment Casting Grade |
|---|---|---|
| 2.1 | SiO₂ | >99.90% |
| 2.2 | Al₂O₃ | <200 ppm |
| 2.3 | Fe₂O₃ | <50 ppm |
| 2.4 | TiO₂ | <20 ppm |
| 2.5 | MgO | <40 ppm |
| 2.6 | CaO | <40 ppm |
| 2.7 | Alkalies (Na₂O + K₂O) | <100 ppm |
Processing note: The finer the powder, the higher the Al₂O₃ may be because the powder is produced by ball milling with alumina balls.
Fused Silica Particle Size Distribution
| Mesh | Microns | 10/20 mesh | 20/50 mesh | 30/50 mesh | 50/100 mesh | −100 mesh | −200 mesh | −325 mesh |
|---|---|---|---|---|---|---|---|---|
| 8 | 2360 | <2 | ||||||
| 12 | 1700 | 6–25 | ||||||
| 16 | 1180 | 33–50 | ||||||
| 20 | 850 | 25–45 | <1 | <1 | ||||
| 30 | 600 | 13 | 25–40 | 15–30 | ||||
| 40 | 425 | 32–45 | 38–50 | |||||
| 50 | 300 | 15–30 | 20–35 | <13 | ||||
| 70 | 212 | 30–60 | ||||||
| 80 | 180 | 0–11 | <10 | <1 | ||||
| 100 | 150 | 28–51 | <15 | <1 | ||||
| 140 | 106 | 4–16 | 17–40 | <10 | ||||
| 200 | 75 | <2 | 19–34 | <10 | <3 | |||
| 325 | 45 | 14–30 | 15–30 | 4–11 | ||||
| Pan | <3 | <2 | <2 | <1 | 4–20 | 70–80 | 86–97 | |
Particle-size note: Pan designates the percentage of fused silica passing the last reported screen for each size. Reference powder sizes include 10–20 mesh, 20–50 mesh, 50–100 mesh, 100 mesh, 200 mesh and 325 mesh. Other chemical-composition and size requirements are available.
Order specification: For the 1–3 mm product, final acceptance should follow the mutually confirmed specification and batch COA.
How 1–3 mm Fused Silica Granules Are Produced
Fused silica is produced from high-purity crystalline silica through electric fusion at approximately 1800–2000°C, forming amorphous silicon dioxide. The fused material is then classified into granular and powder grades, including the 1–3 mm range.
Packaging and Supply for 1–3 mm Granules
- Standard packaging: Net Weight 25 kg per bag
- Bulk packaging option: 1000 kg
- Container reference: 20–25 MT per 20 ft container
- Certification: ISO 9001
- Country of origin: Made in China
- Alternative packaging can be discussed according to purchasing requirements.
Inquiry Details for 1–3 mm Fused Silica
- Application or formulation type
- Required particle size and SiO₂ level
- Trial quantity or annual demand
- Destination port and packaging preference
1–3 mm Fused Silica Granules FAQ
No. It can also be evaluated for refractory, ceramic and foundry formulations. Suitability depends on the customer’s process and confirmed specification.
Yes. The Fused Silica specification template includes multiple granular and mesh grades; confirm the required size with your inquiry.
Tell us the application, required specification and delivery destination so suitable trial arrangements can be discussed.
Standard options are 25 kg bags and 1000 kg bulk packaging; other requirements can be discussed.
Request a Quote for 1–3 mm Fused Silica Granules
Share your application, required grade, quantity and destination port. We will use those details to discuss the appropriate fused silica supply option.
Request a Quote
