| Quantity: | |
|---|---|
1-3mm
SEPPE BAUXITE
25083000
▸ High-purity calcined bauxite sand with consistent 1-3mm particle size for reliable refractory and foundry performance.
★ Al₂O₃ 75-90% ★ Refractoriness 1770℃+
★ Low Impurities ★ Stable Grain Shape
▸ Refractory grade bauxite sand is a premium calcined aggregate produced by sintering selected raw bauxite at temperatures above 1600°C, followed by crushing and screening to a controlled particle size. The 1-3mm fraction offers a balanced grain size that ensures excellent packing density, good flow properties, and high thermal stability. It is widely used as a key component in refractory castables, gunning mixes, ladle linings, and foundry sand systems where resistance to extreme temperatures and mechanical stress is required.
▸ Our fully calcined bauxite sand delivers consistent performance in demanding refractory applications:
Uniform Particle Size — 1-3mm sizing ensures consistent packing and flow characteristics in refractory mixes.
High Bulk Density — dense grains reduce porosity and improve wear resistance in castables and linings.
Excellent Refractoriness — withstands service temperatures up to 1770°C without degradation.
Low Impurity Content — minimal iron and alkali prevents fluxing reactions in high-temperature service.
▸ XRF Chemical Analysis — every batch tested for Al₂O₃, Fe₂O₃, TiO₂, CaO, MgO content
▸ Bulk Density Measurement — verified to ensure consistent grain density
▸ Particle Size Distribution — sieve analysis to guarantee 1-3mm specification
▸ Magnetic Separation Inspection — removal of iron contamination
▸ Batch Traceability — full documentation from raw ore source to shipping container
On-site laboratory at SEPPE processing facility
▸ Precise 1-3mm Sizing — ensures uniform mixing and optimal packing density in refractory formulations.
▸ High Bulk Density — dense grain structure reduces porosity and improves wear resistance.
▸ Excellent Refractoriness — withstands temperatures up to 1770°C without deformation.
▸ Low Impurity Levels — minimal iron and alkali content ensures stable performance in severe environments.
▸ Consistent Quality — batch-to-batch uniformity guarantees predictable results in your refractory processes.
▸ Refractory castables, gunning mixes, and ramming mixes
▸ Ladle linings, tundish linings, and furnace linings
▸ Foundry sand and core applications
▸ Kiln furniture and ceramic shapes
| Chemical Composition | |
| Al₂O₃ | 75 - 90% |
| TiO₂ | 2 - 3% |
| SiO₂ | 6 - 18% |
| Fe₂O₃ | 0.5 - 2.5% |
| CaO | 0 - 0.4% |
| MgO | 0 - 0.2% |
| K₂O + Na₂O | 0 - 0.4% |
| Physical Properties | |
| Shape | Angular |
| Target Size | 1-3mm |
| Specific Gravity | ≥ 3.70 g/cm³ |
| Bulk Density | 2.80 - 3.25 g/cm³ |
| Hardness | 7.5 - 9.0 Mohs |
| Refractoriness | ≥ 1770℃ |
| LOI | 0.1 - 0.5% |
| Grade | Al₂O₃ Content | Main Application |
| Standard Refractory Sand | 75-80% | General purpose castables, backup linings |
| High Alumina Sand | 85% | Ladle linings, furnace linings, investment casting |
| Super Duty Sand | 87-88% | Critical high-temperature zones, specialty ceramics |
▸ SEPPE controls the entire production chain — from high-grade bauxite ore selection to fully integrated calcination, crushing, screening, and global logistics. Every batch of refractory grade sand is tested for particle size distribution, chemical purity, and bulk density to ensure it meets the exacting standards of the refractory industry.
▸ With customers in over 40 countries and dedicated technical support, SEPPE helps refractory manufacturers and foundries achieve longer lining life, reduce downtime, and maintain stable production. Flexible packaging, private labeling, and OEM services are available.
▸ 50 kg bags, 1 MT, 1.25 MT or 1.35 MT jumbo bags
▸ 20' FCL: approx 25-27 MT
▸ Private labeling and custom packaging available
▸ It is used as a high-temperature aggregate in refractory castables, gunning mixes, ladle linings, and foundry sand applications.
▸ The 1-3mm fraction provides an excellent balance of packing density and workability, making it the most versatile size for general refractory formulations.
▸ Yes. Free samples for lab evaluation, along with TDS, SDS, and SGS test reports are available upon request.
▸ Contact SEPPE for: • Free Samples • TDS / SDS Documents • OEM Packaging Options • Bulk Container Pricing
Request a Quote
