Mullite Plate (3Al₂O₃·2SiO₂)

• High-Temperature Stability: Suitable for demanding thermal environments.

• Thermal Shock Resistance: Handles temperature changes depending on grade and design.

• Low Thermal Expansion: Helps maintain dimensional stability during heating.

• Creep Resistance: Supports structural stability under elevated temperatures.

• Electrical Insulation: Suitable for selected insulating applications.

• Custom Dimensions: Plate thicknesses and dimensions may be specified.

Property	Typical Information
Product Name	Mullite Plate
Material	Mullite Ceramic
Chemical Composition	Aluminum oxide and silicon dioxide
Chemical Formula	3Al₂O₃·2SiO₂
CAS Number	1302-93-8
Appearance	White to cream-colored ceramic
Crystal Structure	Orthorhombic
Density	Approximately 2.8–3.2 g/cm³
Maximum Service Temperature	Grade-dependent; commonly around 1,500–1,700°C
Thermal Expansion	Approximately 4–6 × 10⁻⁶/K
Thermal Conductivity	Grade- and temperature-dependent
Electrical Properties	Electrically insulating
Plate Thickness	Specification-dependent
Dimensions	Custom sizes may be available
Applications	Kiln furniture, furnace fixtures, thermal insulation, and ceramic supports

• Standard Mullite Ceramic Plate: For general high-temperature industrial use.

• High-Purity Mullite Plate: For applications requiring controlled chemical composition and impurity levels.

• Dense Mullite Plate: For applications requiring higher density and structural strength.

• Porous Mullite Plate: For selected thermal insulation and specialized ceramic applications.

• Custom Mullite Plate: Dimensions, thickness, and material specifications based on project requirements.

1. What is a mullite plate?

A mullite plate is a flat ceramic component made primarily from mullite, an aluminum silicate material known for high-temperature stability and low thermal expansion.

2. What are mullite plates used for?

Mullite plates are used in industrial furnaces, kilns, heat-treatment systems, laboratory equipment, ceramic manufacturing, and high-temperature support fixtures.

3. What temperature can a mullite plate withstand?

Depending on its composition, porosity, and mechanical loading, a mullite plate may be suitable for service temperatures around 1,500–1,700°C. The specific grade should be checked against the intended operating conditions.

4. Is mullite resistant to thermal shock?

Mullite generally offers good thermal shock resistance because of its relatively low thermal expansion. Performance depends on plate thickness, porosity, heating rate, and temperature gradients.

5. Are custom mullite plate sizes available?

Custom dimensions and thicknesses may be available depending on supplier capabilities. Provide the required length, width, thickness, tolerances, and operating temperature when requesting a quotation.

6. Can REG Metals source high-purity mullite plates?

REG Metals can assist with sourcing mullite plates to specified purity, dimensions, density, and performance requirements, subject to supplier availability.