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AC2691 Alumina Honeycomb （Al2O3）

Name: AC2691 Alumina Honeycomb （Al2O3）
Brand: Advanced Ceramic Materials
SKU: AC2691
Availability: InStock
Rating: 4.9 (166 reviews)

Catalog No. AC2691
Color Ivory/White
Compositions Al2O3
Working Temperature ≤1750℃
Hole Type Round/Square

Datasheet

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AC2691 Alumina Honeycomb （Al2O3）

Product Description

Al2O3 Alumina Honeycomb is a ceramic honeycomb engineered for extreme high-temperature environments. It offers excellent thermal shock resistance, high compressive strength, and low thermal expansion, making it ideal for high-temperature filtration, catalyst support, and heat exchange applications. Its honeycomb structure delivers high specific surface area, low flow resistance, and superior thermal stability. It is widely used in chemical, power, metallurgy, petroleum, electronics, and machinery industries.

Specifications

Properties	Units	Test	Value
Physical
Chemical Formula	–	–	Al₂O₃
Density, ρ	g/cm³	ASTM C20	3.7-3.97
Color	–	–	ivory/white
Crystal Structure	–	–	hexagonal
Water Absorption	% @ 25°C	ASTM C373	0.0
Hardness	Mohs	–	9
Hardness	Knoop (kg/mm²)	Knoop 100g	2000
Mechanical
Compressive Strength	MPa @ 25°C	ASTM C773	2070-2620
Tensile Strength	MPa @ 25°C	ACMA Test #4	260-300
Young's Modulus	GPa	ASTM C848	394
Flexural Strength (MOR)	MPa @ 25°C	ASTM F417	310-379
Poisson’s Ratio, ν	–	ASTM C818	0.27
Fracture Toughness, K_Ic	MPa·m¹/²	Notched Beam Test	4.5
Thermal
Max. Use Temperature (* denotes inert atm.)	°C	No load cond.	1750
Thermal Shock Resistance	ΔT (°C)	Quenching	200
Thermal Conductivity	W/m-K @ 25°C	ASTM C408	35
Coefficient of Linear Thermal Expansion, α_l	µm/(m·K) (~25°C through ±1000°C)	ASTM C372	8.4
Specific Heat, c_p	cal/g-°C @ 25°C	ASTM C351	0.21
Electrical
Dielectric Constant	1MHz @ 25°C	ASTM D150	9.6
Dielectric Strength	kV/mm	ASTM D116	15
Electrical Resistivity	Ω·cm @ 25°C	ASTM D1829	>10¹⁴

Applications

Chemical industry – catalyst support and reactor packing
Electric power – high-temperature flue gas treatment
Metallurgy – molten metal filtration
Petroleum – refinery process heat exchange
Electronics – semiconductor diffusion furnaces
Machinery – thermal protection components