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Industrial Ceramic Refractory Corundum Mullite Ceramic Tube

Mullite is an excellent material due to its high temperature stability, strength and creep resistance. It is similar to Cordierite, although it is not as good an insulator and has a higher coefficient of thermal expansion. It is commonly used in heater exchange parts and electrical insulators.

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Product Introduction

Industrial Ceramic Refractory Corundum Mullite Ceramic Tube

Mullite ceramics, composed of aluminum silicate (3Al₂O₃·2SiO₂), are high-temperature refractory materials known for their excellent thermal stability, low thermal expansion, and resistance to thermal shock. With a melting point of ~1,850°C, they withstand extreme heat and harsh environments, including exposure to acids, alkalis, and molten metals. Their mechanical strength and creep resistance at high temperatures make them ideal for kiln linings, furnace components, and thermal barrier coatings in metallurgy, aerospace, and energy industries. While less fracture-tough than zirconia, mullite’s cost-effectiveness, chemical inertness, and reliability in demanding conditions secure its role in high-temperature engineering and industrial applications.

Porous Mullite Ceramic Core Heating Element Heater

$Industrial Ceramic Refractory Corundum Mullite Ceramic Tube$

Technical Parameters

Properties	Units	Cordierite Ceramic	Mullite Ceramic	95%Alumina Ceramic	99%Alumina Ceramic	99.5%Alumina Ceramic	99.7%Alumina Ceramic	Silicon Nitride	Zirconia Ceramic
Colour		Yellow	White	White	Light yellow	Light yellow	Light yellow	Black	White
Density	g/cm3	1.9	2.6	3.6	3.8	3.8	3.9	3.2	6
Flexural Strength	Mpa	30	120	300	350	375	375	800	1100
Compressive Strength	MPa	350	500	2500	2800	2800	2554	2600	3000
Modulus of Elasicity(20℃）	Gpa	40	100	300	350	350	357	290	320
Max Use Temperature	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Condutivity	W(m.K)	1.3-1.8	2~6	20	30	30	33-38	25	3
Thermal Expansion Cofficient	10-6/°C	2.5-3	2.5-3	7.5	8	8.2	8.2	3	10
Thermal Shock Resistance	△T℃	300	150	140	150	200	223	600	250
Dielectric Strength	KV/mm	-	-	15	18	18	23.4	14	15
Dielectric Constant	Er	8	8	9	9.2	9.2	9.84	9	26

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

mullite honeycomb ceramic

Certifications

mullite honeycomb ceramic

Packaging and shipping

mullite honeycomb ceramic

FAQ：

Q: How can I get the after-service?

A: Any quality problem, feel free to contact us, we’ll deal with it within 3 working days.

Q:What kind of transportation mode do you have?

A: By Sea/By Train/By Air or By Express, 15-20days Against Deposit.

Q: How is your price level?

A: Factory direct sale, we have whole production line work process from platform to main parts. We have hot injection machine and dry pressing machine.

Porous Mullite Ceramic Core Heating Element Heater