Qingdao Leadsun Refractory Co., Ltd
| Payment Terms | L/C,D/P,T/T,Western Union |
| Packaging Details | carton |
| Delivery Time | 5-7days |
| Bulk Density | 220(kg/m³) |
| Chemical Content | Al2O3+SiO2 |
| Water Content | ≤1% |
| Width | 600/900/1000mm |
| Environmentalsafety | Non-toxic, asbestos-free |
| Waterabsorption | < 10% |
| Application | Thermal insulation, fireproofing, refractory linings |
| Brand Name | Leadsun |
| Certification | ISO CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/P,T/T,Western Union | Packaging Details | carton |
| Delivery Time | 5-7days | Bulk Density | 220(kg/m³) |
| Chemical Content | Al2O3+SiO2 | Water Content | ≤1% |
| Width | 600/900/1000mm | Environmentalsafety | Non-toxic, asbestos-free |
| Waterabsorption | < 10% | Application | Thermal insulation, fireproofing, refractory linings |
| Brand Name | Leadsun | Certification | ISO CE |
| Place of Origin | China |
Refractory ceramic fiber board is manufactured using fully automated vacuum forming equipment, combined with scientific slurry control and a low-shrinkage formula. These ensure the board maintains excellent flatness and mechanical support even in extreme temperatures.
Through secondary pressing and directional drying, fiber bonding is further reinforced, resulting in superior thermal shock resistance and anti-pulverization performance.
Each board is CNC-calibrated before cutting, keeping dimensional error within +0.5mm. This significantly improves installation precision, reduces labor intensity, and prevents heat leakage caused by large panel gaps.
Refractory ceramic fiber board can be directly used as internal lining in the walls, doors, and roof sections of heat treatment furnaces. With its high strength and low thermal conductivity, it supports heavy thermal loads while effectively preventing thermal bridges and optimizing heat retention.
Even under continuous operation at 1100°C–1260°C, the board retains its form, resists shrinkage, and avoids spalling. This significantly extends furnace life, reduces maintenance frequency, and lowers operational energy costs.
| Item | Common | Standard | H Pure | H Alumina | Zirconium |
|---|---|---|---|---|---|
| AL2O3(%) | 44 | 46 | 47-50 | 52-55 | 39-40 |
| Fe2O3(%) | 1.2 | 1.0 | 0.2 | 0.2 | 0.2 |
| ZrO2(%) | – | – | – | – | 15-19 |
| Classification Temperature (°C) | 1100 | 1260 | 1260 | 1360 | 1430 |
| Working Temperature (°C) | 1000 | 1050 | 1100 | 1200 | 1350 |
| Density (kg/m³) | 260/320 | 260/320 | 260/320 | 260/320 | 260/320 |
| Permanent Linear Shrinkage (%) After 24 hours, density 128kg/m³ |
-4 (1000°C) | -3 (1000°C) | -3 (1100°C) | -3 (1250°C) | -3 (1350°C) |
| Tensile Strength (MPa) Density 128kg/m³ |
0.08-0.12 | 0.08-0.12 | 0.08-0.12 | 0.08-0.12 | 0.08-0.12 |
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2014
Total Annual:
3000000-5000000
Employee Number:
5~20
Ecer Certification：
Verified Supplier
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
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