1600C Polycrystalline Mullite Fiber Refractory Components

Product Description

1600C Polycrystalline Mullite Fiber Refractory Components are precision-engineered, high-temperature insulation solutions crafted from premium polycrystalline mullite fiber through an advanced vacuum-forming process. These custom-profile components offer outstanding thermal resistance and insulating efficiency, maintaining dimensional stability and structural integrity even under prolonged exposure to extreme heat-resisting deformation, cracking, or pulverization.

 

With superior thermal shock resistance and excellent mechanical toughness, they are ideally suited for critical roles in industrial kilns, electric furnaces, high-temperature duct linings, and thermal sealing systems. Their lightweight design facilitates quick, hassle-free installation, while significantly boosting overall refractory performance.

 

SUNTHERM offers a broad range of configurations, including custom blocks, cylinders, rings, cones, perforated plates, and modular assemblies. All parts can be tailored to precise customer drawings, physical samples, or specific performance requirements, ensuring a perfect fit for your unique thermal management needs.

 

Product Features

●  Ultra-High Temperature Resistance: Operates at temperatures up to 1600°C, maintaining structural stability in high-temperature environments without pulverizing or shrinking.

●  Low Thermal Conductivity: Excellent thermal insulation significantly reduces heat loss and improves thermal efficiency.

●  Strong Thermal Shock Resistance: Resists cracking or breakage under rapid cooling and heating conditions, making it suitable for thermal systems subject to frequent start-up and shutdown.

●  Precision Molding: Custom-shaped designs and processing are available to meet customer requirements, ensuring precise structure and dimensional stability.

●  Environmentally Friendly: Contains no asbestos or other harmful substances, ensuring safe and pollution-free use.

 

Product Application

◆  Industrial furnace seals and linings: such as lining components and furnace door seals for high-temperature kilns, laboratory furnaces, push-plate furnaces, and shuttle furnaces.

◆  Aerospace and military materials: used for thermal insulation and heat shields in high-temperature airflow channels.

◆  Heat treatment equipment accessories: heating element brackets, insulation trays, furnace flow guide components, etc.

◆  Specialty ceramics and glass industries: high-temperature workstation insulation, grouting molds, heat-resistant positioning components, etc.

 

Product Parameter

Item		Index
Classification temperature(C)		1600	1700
Use limit(C)		1450	1600
Al2O3(%)		62	70
Al2O3+SiO2 (%)		98	98.5
Density(Kg/m3)		300-600	300-600
Thermal conductivity (W/m.k)	400C	0.08	0.08
	600C	0.10	0.09
	800C	0.13	0.12
	1000C	0.15	0.15
	1200C	0.19	0.19
Linear shrinkage (%)		≤2 (1450Cx24h)	≤1.5 (1600Cx24h)
Modules of rupture (Mpa)		≥0.3	≥0.3
Compressive strength (Mpa)		≥0.25	≥0.25
Ignition loss(%)		8	8

 

Product Certificate

What Is Polycrystalline Mullite Fiber?

A Breakthrough in High-Temperature Insulation

Polycrystalline mullite fiber (PMF) represents the next generation of ultra-lightweight, high-temperature refractory materials, sitting at the forefront of the Al₂O₃-SiO₂ ceramic fiber family. With a service temperature range of 1500°C to 1600°C, it outperforms traditional glass fibers by 200–300°C in thermal endurance. PMF is distinguished by exceptionally low thermal conductivity, outstanding thermal stability, and superior resistance to both chemical corrosion and mechanical stress-qualities that make it the preferred choice for demanding applications in aerospace, metallurgy, petrochemicals, and other high-performance industrial sectors. It embodies the pinnacle of current technological innovation in refractory fiber engineering.

Unlike conventional glass fibers, PMF is manufactured using a complex sol-gel (colloidal) process, which involves precise chemical reactions and carefully controlled thermal treatments. The final fiber is predominantly composed of the mullite phase (3Al₂O₃·2SiO₂), with a standard chemical composition of 72% alumina (Al₂O₃) and 28% silica (SiO₂). During production, soluble aluminum and silicon precursors are transformed into a viscous colloidal solution, which is then spun into fibers and subsequently heat-treated to induce crystallization into the mullite structure.

The material is available as loose bulk cotton, suitable for direct use as high-temperature insulation filler. Furthermore, through vacuum forming and secondary processing, it can be converted into a wide array of high-performance products-including fiber blankets, boards, modules, and custom-shaped components-offering tailored solutions for even the most extreme thermal environments.

 

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FAQ

Q1: Can I get samples? Do you provide free samples?

A1: Absolutely. SUNTHERM offers free samples for your evaluation. As for the shipping cost, it can be negotiated and agreed upon by both parties.

 

Q2: Can I use our own logo or custom design for labels and packaging?

A2: Yes, SUNTHERM has an experienced design team that can customize labels, packaging, and shipping marks according to your specific requirements.

 

Q3: Are your prices negotiable?

A3: Certainly. Our pricing is flexible and depends on the order quantity. We're happy to offer competitive discounts for bulk purchases.

 

Q4: Can I request samples? Are they provided free of charge?

A4: Yes. SUNTHERM gladly provides complimentary samples for quality evaluation. Regarding shipping costs, we are open to discussion and can reach a mutually agreeable arrangement.

 

Q5: Can I use my own logo or customize the packaging and labeling?

A5: Absolutely. Our experienced in-house design team is ready to customize labels, packaging, and shipping marks to match your precise specifications-ensuring your brand identity is fully reflected.

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