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Product Details:
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| Material: | Natural Sintered Mullite 70% | Al2O3 Content: | 70.4% |
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| SiO2 Content: | 23-29.3% | Bulk Density: | 2.84% Min. |
| Refractoriness: | 1950 Degree Min. | Color: | Gray |
| High Light: | Fully Calcined Mullite,Mullite Refractory Raw Material,Refractory Raw Material Binary Solid Solution |
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High Temperature Tunnel Kiln Sintered Mullite 47% 60% 70% for Shaped and Unshaped Refractories
1. Natural Sintered Mullite Introduction
Sintered Mullite M70 for refractory also called Cyanite, Disthene,Kaopolite,Kyanite is a high-quality refractory raw material, and this type of mineral is relatively rare. Mullite is a mineral produced by aluminosilicates at high temperatures. Mullite is formed when aluminosilicates are artificially heated. Natural mullite crystals are slender, needle-like and radially clustered. Mullite is used to produce high temperature refractories. Mostly used as thermal barrier coatings in C / C composites, it is widely used. The mullite AI2O3-SiO2 elementary system is a stable binary solid solution under normal pressure. The natural mullite with the chemical formula of AI2O3-SiO2 is very few. It is usually artificially synthesized by sintering or electrofusion.
2. Natural Sintered Mullite Specifications
CHEMICAL PERFORMANCE INDEX
| Chemicals | M80 | M70 | M60 | M47 |
| Al2O3 % | 78-82 | 68-72 | 58-62 | 46-50 |
| Fe2O3 % | 1.6max | 1.5max | 1.5max | 1.5max |
| TiO2 % | 2.50max | 2.50max | 2.50max | 1.0max |
| SiO2% | 12-15 | 22-25 | 35-38 | 44-54 |
PHYSICAL PERFORMANCE INDEX
| Properties | M80 | M70 | M60 | M47 |
| B.D. g/cm3 | 2.85min | 2.75min | 2.65min | 2.58min |
| Water Absorption % | 3max | 3max | 3max | 3max |
| Refractoriness ℃ | 1850min | 1850min | 1850min | 1750min |
3. Natural Sintered Mullite General Advantages
1. Good thermal shock resistance.
2. High-temperature creep is small.
3. Load softening temperature is high.
4. High mullite phase.
5. Volume density high, high hardness.
6. Uniform expansion.
7. Low porosity.
8. High refractoriness.
4. Natural Sintered Mullite Characteristics
5. Natural Sintered Mullite Applications
Our Sintered Mullite is suitable for Stainless steel, alloy steel, carbon steel, heat-resistant steel, titanium alloy, nickel alloy, aluminum alloy, cast iron, cast copper complex precision castings and big, medium and small castings, etc.
Our Sintered Mullite is suitable for precision casting ,Silicon Sol investment casting, lost wax casting ,Cast steel, cast copper, Vacuum casting, plaster filler v-process, casting coatings, casting mold shell, etc.
6. Natural Sintered Mullite Particle sizes Available
Size of powder: -200mesh,-270mesh,-325mesh.
Size of particle: 0-1mm,1-3mm,3-5mm,5-8mm, 8-15mm, 0-5mm or as required.
Contact Person: Jason Chen
Tel: 86-18603794999
