High-Temperature Rigid Board for Hot-Face Insulation
Alumina Silica Fiber is a rigid high-temperature fiber board developed for industrial furnace linings, hot-face insulation, and structural thermal protection.
The material combines high thermal stability, low thermal conductivity, low heat capacity, thermal shock resistance, and erosion resistance. These properties help reduce heat storage in the lining and limit heat transfer toward the outer structure of the equipment.
The board also provides good thickness and dimensional accuracy. It can be cut and further processed, making installation more practical for projects with defined furnace dimensions, assembly gaps, or localized insulation structures.
Because the board can withstand direct exposure to flame and high-temperature gas flow, it can be installed in demanding furnace positions where both insulation and structural form are required.
Applications from Heat Treatment to Research Furnaces
The product can be used in vacuum heat treatment equipment, industrial heat treatment kilns, powder metallurgy sintering equipment, new-energy material sintering equipment, and scientific laboratory electric furnaces.
Available grades range from NC1260 to NC1800, with classification temperatures covering 1260°C to 1800°C.
For higher-temperature applications, NC1600, NC1700, and NC1800 have flexural strength of at least 0.7 MPa. Their alumina contents are 72%, 78%, and 83% respectively.
At 800°C, the listed thermal conductivity range is 0.125–0.128 W/(m·K), while NC1600 through NC1800 are listed at 0.16 W/(m·K).
These data allow buyers to compare material temperature grade, structural strength, density, and thermal performance rather than selecting only by classification temperature.
Support for Machining and Furnace Structure Matching
Zhejiang Nengcheng Crystal Fiber Co., Ltd. focuses on the development and deep processing of high-temperature refractory insulation materials. Its production system covers fiber formation and crystallization, wet vacuum forming, board machining, and physical and chemical testing.
For projects requiring cutting, holes, or dimensional matching with the furnace body, the technical team can discuss operating temperature, furnace atmosphere, gas-flow conditions, and installation structure before production.
Alumina Silica Fiber can also be customized according to technical drawings or physical prototypes, helping the finished board dimensions match the intended equipment assembly.
Sample Confirmation and Bulk Order Control
For equipment production, furnace modification, or spare-part purchasing, buyers can request samples before bulk production to confirm product grade, density, and machining results.
Customized sample development normally takes 7–15 days. Production is arranged according to the factory schedule, and photos or videos can be provided during manufacturing.
The factory has dedicated inspection personnel. Finished products are normally fully inspected before packaging, and third-party inspection is accepted.
For larger orders, pricing can be discussed according to purchase quantity. The standard payment arrangement listed in the provided information is 30% advance payment and 70% balance payment. For customized products, the advance payment ratio is 50%.
Product Specifications
|
Parameter |
Specification |
|
Product Grades |
NC1260, NC1350, NC1400, NC1430, NC1600, NC1700, NC1800 |
|
Classification Temperature |
1260°C–1800°C |
|
Bulk Density |
300–600 kg/m³; NC1700 and NC1800: 450–700 kg/m³ |
|
Flexural Strength |
NC1260–NC1430: ≥0.5 MPa; NC1600–NC1800: ≥0.7 MPa |
|
Thermal Conductivity at 800°C |
0.125–0.128 W/(m·K); NC1600–NC1800: 0.16 W/(m·K) |
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