High Purity 99% Alumina Ceramic Crucible for Lab and Industrial Melting

• Customization: Available
• Classification: High-Alumina
• Feature: Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Low Thermal Conductivity, Long Time Materials
• Model NO.: Alumina Crucible
• Production Process: Sintering Method
• Refractoriness (℃): 1580< Refractoriness< 1770
• Shape: Block
• Type: Refractory Material
• Material: Alumina
• Bbending Strengthing Strength: 15-40MPa
• Composition: High Pure
• Transport Package: Pallet
• Trademark: jucos
• Origin: Zibo
• HS Code: 6902
• Production Capacity: 50000PCS/Year
• Package Size: 30.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

Alumina crucibles (also known as Corundum Crucibles) are manufactured from 99% Al2O3 (Aluminum Oxide) premium raw materials. Using advanced slip casting and high-pressure forming technologies, these crucibles undergo high-temperature sintering at 1800C to achieve a dense, uniform structure. Designed for the most demanding laboratory and industrial environments, our crucibles provide exceptional thermal stability and zero-contamination performance for melting metals, powders, and chemical analysis.

Features

Extreme Temperature Resistance:

 Operates reliably up to 1600C for long-term use, with a maximum short-term limit of 1800C.
High Purity (99% Al2O3):

Ensures no impurities leach into your samples, making it ideal for high-precision laboratory analysis and precious metal melting.
Excellent Chemical Inertness:

Highly resistant to acid and alkaline erosion, as well as chemical attack from molten slags and fluxes.
Superior Thermal Shock Resistance:

Engineered to withstand rapid temperature changes without cracking or structural failure.
High Density & Smooth Surface:

The dense corundum structure prevents liquid penetration and makes the crucible easy to clean and reuse.

Applications

Laboratory Analysis:

Used in analytical chemistry for heating samples, calcining powders, and high-temperature reactions.
Metallurgy & Melting:

Ideal for melting precious metals (Gold, Silver, Platinum), high-temperature alloys, and non-ferrous metals.
Semiconductor Industry:

Used in material synthesis, crystal growth, and wafer processing environments.
Advanced Ceramics & Glass:

Perfect for the calcination of electronic ceramic powders and high-purity glass smelting.
Battery Materials:

Essential for the heat treatment and sintering of cathode/anode materials in lithium-ion batteries.

Item	Content
SiO2	54.6%
Al2O3	40.31%
Fe2O3	1.11%
TiO2	0.47%
CaO	1.28%
MgO	0.34%
K2O	0.61%
L.O.I(loss on ignition)	0.21

Q1: Max Working Temperature?

A: 1600C for long-term use; 1800C for short-term. (99% Al2O3).

Q2: How to prevent cracking?

A: Control heating/cooling rate below 10C/min to avoid thermal shock.

Q3: Will it contaminate my samples?

A: No. High purity (99%) ensures chemical inertness and zero-contamination.

Q4: Safe for shipping?

A: Yes. Professional foam + export carton. Breakage rate <1%.

Q5: Support customization?

A: Yes. We customize sizes, shapes, and lids according to your drawings.