Alumina Crucible

Edgetech Industries, Advanced Ceramics Division supplies high-quality and competitive price advanced Alumina Crucible products.

SKU: O13-C

High-Performance Alumina Crucibles (Al2O3 Ceramic Crucibles) – Reliable & Customizable Solutions

Premium Alumina Crucibles for Extreme ConditionsAlumina crucibles (Al₂O₃ ceramic crucibles) are essential for high-temperature applications due to their exceptional chemical corrosion resistance and thermal stability. These crucibles withstand prolonged use at 1650°C (3002°F) and short-term exposure up to 1800°C (3272°F), making them ideal for demanding laboratory and industrial processes.

Available in cylindrical, conical, arc-shaped, and sagger-shaped designs, our alumina crucibles are engineered with high purity (up to 99% Al₂O₃), ensuring superior performance and durability. Their cost-effectiveness and reliability make them indispensable in research, metallurgy, and material testing.

Specifications of Alumina Ceramic Crucible

Item	Unit	Al2O3
Physical Property
Color	\	Ivory
Density	g/cm3	3.7-3.9
Purity	%	95~99.8
Gas Permeability	\	0
Water Absorption		0%
Mechanical Properties
Vickers Hardness	GPa	12.3-17.2
Flexural Strength	MPa	300-380
Compressive Strength (HV0.5)	MPa	2000-2350
Elastic modulus	GPa	270-380
Fracture Toughness	MPam^1/2	3.5-4
Thermal Properties
The Max Working Temperature	℃	1650
Thermal Conductivity at room temperature	W/m·k	20-32
Coefficient of Thermal Expansion	10-6/℃	6.5-7.2
Thermal Shock Resistance	△T℃	200
Electrical Properties
Dielectric Strength	KV/mm	10-15
Dielectric Constant		9-10
Dielectric Loss Angle(1MHz)		0.0002-0.0003
Volume Resistivity	Ω·cm	>10¹⁴

Custom Alumina Crucible Solutions

At Edgetech Industries (Advanced Ceramics Division), we specialize in manufacturing precision alumina crucibles tailored to your exact requirements.

Alumina Boats

Whether you need standard or custom-shaped crucibles (including square alumina boats), we work closely with you to meet precise specifications.

📌 Key Features:

High-purity alumina (up to 99%)
Exceptional thermal & chemical resistance
Custom shapes & sizes (provide drawings or specs)
Vacuum & protective packaging for safe delivery

Dimensions for regular Alumina Crucibles

Shape	OD, mm	WT, mm	Height, mm
Cylindrical	10	1	15
Cylindrical	19	1.5	102
Cylindrical	80	3	80
Cylindrical	110	5	150
Shape	L, mm	W, mm	Height, mm	WT, mm
Rectangle	21	12.7	15	2
Rectangle	50	12	10	2
Rectangle	60	30	20	2.5
Shape	Upper OD	Lower OD	Height, mm	WT, mm
Arc-shaped	46	25	40	3
Arc-shaped	56	30	45	2.9
Arc-shaped	57	37	68	3.5
Arc-shaped	70	44	85	2.9
Arc-shaped	100	70	120	3.5
Arc-shaped	100	70	150	4.5
Arc-shaped	125	80	155	4.5

The above dimensions are for reference only. Please contact us for exact specifications or custom requirements.

We can also provide square and rectangular alumina crucibles or boats. Please send us drawings or detailed specifications. All products can be customized

Application of Alumina Ceramic Crucible

Alumina crucibles have a wide range of uses.

-Can be used for various laboratory metal and non-metal sample analysis and smelting materials;

-Can be used to burn colorants, colorants, frits, pigments, luminescent materials, etc., in shuttle kilns and pusher kilns;

-Can be used to adjust the formula in small experimental kilns and experimental electric furnaces.

-Can be used for the analysis and burning of smelting metals, precious metals, optical glass, rare earth, and other mineral raw materials;

-Can be used for the burning of high-temperature products such as ceramic powders.

Secure Packaging for Fragile Alumina Ceramics

Since alumina crucibles are fragile, we ensure careful handling with:

Shock-absorbent inner cushioning
Reinforced outer boxes
Optional vacuum sealing for added protection

Need a Custom Alumina Crucible?
Send us your specifications or drawings, and we’ll deliver high-quality Al₂O₃ ceramic crucibles tailored to your needs. Contact Edgetech Industries today for a quote!