Fused Silica AB Grade
Fused Silica AB Grade is a high-purity amorphous silica material designed to balance performance and cost.
It offers stable chemical composition, zero free quartz and cristobalite, and is suitable for a wide range of refractory and foundry applications.
Fused Silica AB Grade – Particle Size
Fused silica AB grade 0.2-0.5mm
Fused silica AB grade 0.2-0.1mm
Fused silica AB grade 200Mesh
Product Description
Fused Silica AB Grade is produced from selected high-quality silica sources through high-temperature fusion and controlled screening.
The material features consistent particle size distribution, low impurity levels, and excellent thermal stability.
Compared with A Grade, AB Grade provides a cost-effective solution while maintaining reliable performance in high-temperature environments.
Chemical Composition
| Component | Grains (%) | Powders (%) |
|---|---|---|
| SiO₂ | 99.85 | 99.8 |
| Al₂O₃ | < 0.02 | < 0.03 |
| Fe₂O₃ | < 0.02 | < 0.03 |
| TiO₂ | < 0.01 | < 0.01 |
| CaO | < 0.01 | < 0.01 |
| MgO | < 0.02 | < 0.01 |
| K₂O | < 0.01 | < 0.01 |
| Na₂O | < 0.01 | < 0.01 |
| C | < 0.01 | < 0.01 |
| Quartz – SiO₂ | 0 | 0 |
| Cristobalite – SiO₂ | FREE | FREE |
| Amorphous Matter | Fused | Fused |
Physical Properties
| Property | Value |
|---|---|
| Specific Gravity | 2.2 |
| pH Value | 6.5 |
Key Features
• High purity amorphous silica structure
• Zero free quartz and cristobalite
• Stable chemical composition
• Excellent thermal shock resistance
• Cost-effective alternative to A Grade
• Suitable for grains and powders applications
Applications
• Induction furnace linings and refractory back-up layers
• Ramming mass and refractory castables
• Foundry coatings and investment casting systems
• High-temperature insulation materials
• Glass and ceramic industry applications
Packaging Options
• 25 kg kraft paper bags × 50 bags per pallet, stretch-wrapped
• 1200 kg jumbo bags on pallet
• 1250 kg jumbo bags on pallet
• Customized packaging available upon request
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Contact us today to receive technical data and a competitive quotation.