Zhengzhou Annec Industrial Co., Ltd.
Continuously Pushing Forward R& D of HBS for BF and Progress of Refractory Technology To Become Preferred Global Supplier in High Temperature Industry
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low thermal conductivity insulating silica brick for sale
The silica content is 93% or more. It has acid slag corrosion resistance and higher high temperature strength. The load softening start temperature is 1620~1670 °C. Long-term use at high temperatures does not deform. The thermal shock stability is low (heat exchange in water for 1~4 times). This residual expansion will make the joints tight and ensure good air tightness and structural strength of the masonry.
Advantage:
1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C
Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.
Light Weight Silicate Bricks Product Data
| Silica Insulating Brick | |
| Item | PSB |
| SiO2(%) | ≥90 |
| Expansion, 1000℃ | 1.1~1.3 |
| Refractoriness Under Load,0.1MPa(℃) | ≥1500 |
| Bulk Density (g/cm3) | ≤1.15 |
| Cold Crushing Strength (MPa) | ≥5.0 |
| Permanent Linear Change(%) | ±0.5 |
| Thermal conductivity(350±25)℃ (W/mK) | ≤0.65 |
Applications:
Metallurgy, building materials, chemical industry, petroleum, machinery manufacturing, silicate, power and other industries.
It’s widely used for the linings and insulating layers of industry kilns, and the areas without strong erosion and souring action by molten materials at high temperature.
Packaging & Delivery
