1600℃ Polycrystalline Alumina Fiber Insulation Board

Product Description：

1600C Alumina Fiber Board is a premium refractory insulation board crafted through an advanced wet-forming process. Made from high-purity 1600-grade polycrystalline alumina fiber and precisely balanced inorganic and organic binders, it delivers consistent density, uniform structure, and reliable mechanical strength.

Engineered for the most demanding high-temperature applications, this board maintains exceptional thermal stability at continuous operating temperatures of up to 1600°C (2912°F). Its low thermal conductivity and excellent insulating performance drastically reduce heat loss and energy usage, while accelerating heating and cooling cycles to improve overall process efficiency and lower operational expenses.

Beyond thermal insulation, 1600C Alumina Fiber Board acts as a durable shield for refractory linings, absorbing and dampening the impact of rapid temperature changes to prevent thermal shock damage. Its unique fiber matrix-dense yet vapor-permeable-also offers strong resistance against corrosive gases and chemical attack in harsh industrial environments, substantially prolonging the lifespan of critical equipment.

Whether used in high-temperature kilns, industrial furnaces, incinerators, or petrochemical heaters, 1600C Alumina Fiber Board delivers a seamless combination of thermal protection, energy savings, and long-term durability-making it the trusted choice for engineers seeking performance and reliability in extreme heat.

 

Product Features:

Ultra-high temperature resistance – Long-term use up to 1450°C; withstands even higher short-term peaks.

Low thermal conductivity – Microporous fiber structure reduces heat loss and saves energy.

High purity – Al₂O₃ ≥95%, minimal impurities, no volatile emissions, non-contaminating.

Excellent thermal stability – Resists thermal shock, grain coarsening, and phase changes.

High mechanical strength – Sintered for high compressive/flexural strength; resists breakage and slagging.

Precise dimensions – Mold-formed with smooth surface and uniform thickness; easy to machine and install.

Broad chemical resistance – Withstands most acids, alkalis, and reducing atmospheres (except hydrofluoric acid and strong alkalis).

Low heat capacity – Enables rapid heating/cooling cycles, improving efficiency and flexibility.

 

Product Applications:

Fine Ceramics & Electronics: Linings for ceramic sintering furnaces, pusher kilns, and roller kilns; semiconductor diffusion furnaces and heat treatment furnaces for electronic components; sintering equipment for precision ceramic devices such as MLCCs and LTCCs.

New Energy Batteries: Calcination furnaces for lithium-ion battery positive and negative electrode materials (such as lithium iron phosphate and ternary materials); high-temperature sintering equipment for solid electrolytes.

Metal Heat Treatment: Working linings and insulation layers for high-temperature vacuum furnaces, hydrogen furnaces, high-temperature alloy melting furnaces, and forging heating furnaces.

Petrochemicals: Back linings, insulation, and refractory linings for high-temperature reactors such as cracking furnaces, conversion furnaces, and gasification furnaces.

Aerospace & Military: High-temperature alloy precision casting, thermal insulation components for thermal protection systems, and insulation layers for rocket engine test benches.

Glass & Building Materials: Insulation linings for glass melting furnaces, special glass forming equipment, and sintering furnaces for ceramic fiber products.

Scientific Research & Experimentation: High-temperature experimental furnaces, material sintering and testing equipment, and ultra-high temperature thermal experimental devices.

 

Product Technical Parameters:

Item	Index
Classification Temperature (℃)	1600 (3000F)
Use limit (℃)	1450
Density(kg/m3)	260-600
Thermal Conductivity (w/m.k)	400 600 1000 1200	0.08 0.10 0.16 0.19
Linear shrinkage (%)	<2 (1450Cx24h)
Chemical Composition (%)	AL2O3 (%) SiO2 (%)	62 36
Modules of rupture (Mpa )	>0.3
Compressive strength(Mpa)	>0.25
Ignition loss(%)	8

 

Product Certificate：

 

Why Choose Us

Extensive Experience

With 33 years of manufacturing expertise and 20 years of export experience in the ceramic fiber insulation industry, SUNTHERM is a trusted and professional manufacturer of thermal insulation materials.

Superior Quality

SUNTHERM products are produced under a strict manufacturing process and rigorous quality control system, ensuring consistent and reliable performance.

Tailored Solutions

SUNTHERM provides personalized and customized services based on your specific needs, offering optimal solutions for various application scenarios.

OEM Support

SUNTHERM offers comprehensive OEM services, helping you build your brand with confidence.

Fast & Reliable Delivery

Thanks to SUNTHERM large-scale and stable production capabilities, we ensure fast turnaround and on-time delivery for every order.

Competitive Pricing

Through years of dedication to international trade and supply chain optimization, we're able to offer the most competitive prices without compromising on quality.

Customer visits

Packaging Display
SUNTHERM has a professional team with rich experience in customizing packaging for various products.

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FAQ

Q1: What is your minimum order quantity (MOQ)?

A1: We don't enforce a strict MOQ-orders of all sizes are welcome. Pricing is flexible and adjusted based on order volume.

Q2: What are your standard payment terms?

A2: Our usual terms require a 30%–50% T/T deposit upon order confirmation, with the remaining balance due before shipment once production is complete. We also accommodate other payment methods, including L/C, Western Union (for smaller amounts), and PayPal.

Q3: Do you offer customization services?

A3: Absolutely. We provide full OEM support, backed by our in-house factory and an experienced technical team.

Q4: What is your typical production lead time?

A4: Lead times depend on the product type and order quantity, generally ranging from 7 to 15 days after order confirmation and deposit receipt. We will provide a more precise schedule once we have your detailed requirements.

Q5: Can I get samples? What are your sample policies?

A5: Yes, samples are available for quality assessment. Sample fees and shipping costs are usually covered by the customer, but these charges are fully refundable upon placement of a formal order.

Q6: How do you ensure product quality and secure packaging for international shipping?

A6: We implement strict quality control measures at every stage of production. For export, all goods are carefully packed in standard export cartons, wooden cases, or on pallets, as appropriate, to guarantee safe and reliable transit.

 

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