Customized 95% 99% Al2O3 Alumina Ceramic Melting Crucibles with Lid

Product Description

Product Description

Cylindrical Alumina Crucibles

Al2O3 Ceramic Crucible
It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating material with a high electrical resistivity. The good corrosion resistance makes it insoluble in water and slightly soluble in strong acid and alkaline solution.

Cylindrical Alumina Crucibles

Aluminium Oxide,

Al2O3 is the most widely applied and cost effective technical ceramic material. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating material with a high electrical resistivity. The good corrosion resistance makes it insoluble in water and slightly soluble in strong acid and alkaline solution.

Alumina crucibles are also called corundum crucibles because the crystalline form of high-purity alumina is corundum.and are one of the most commonly used high-temperature resistant vessels in laboratories and industrial production.

Cylindrical Alumina Ceramic Crucibles

Advantages
1.Great mechanical strength
2.Low thermal conductivity
3.High heat resistance
4.High softening temperature
5.Small thermal expansion coefficient
6.Good cold-resistance heat-resistance
7.Resistance to acid and alkali corrosion
8.Long service life

Al2O3 Cylindrical Alumina Crucible Material: High-purity alumina (corundum) ceramic, with a dense, non-porous structure.
Appearance: Milky white/off-white, with excellent mechanical strength and a smooth, uniform surface.
Shape Options: Cylindrical, square, rectangular (boat/arc-shaped), and custom sizes are available.

Technical Specifications

(Custom configurations available upon request.)

Alumina Ceramic
Alumina Purity	92%	95%	96%	99%	99.6%
Color	White	White	White	Ivory White	White
Volumedensity(g/cm3)	3.45	3.5	3.7	3.75	3.9
Water Absorption	0	0	0	0	0
Flexural Strength	300Mpa	300Mpa	320Mpa	330Mpa	330Mpa
Vickers hardness	1300	1400	1400	1800	1800
Dielectric Constant (at 1MHZ 25℃)	10	10	10	10	10
Modulus of elasticity	350Gpa	350Gpa	350Gpa	370Gpa	370Gpa
thermal conductivity (30℃)	18W/M.K	24W/M.K	24W/M.K	25W/M.K	28W/M.K
Volume resistivity	10^14Ω•cm	10^14Ω•cm	10^14Ω•cm	10^14Ω•cm	10^15Ω•cm
Dielectric strength	20KV/mm	20KV/mm	20KV/mm	20KV/mm	30KV/mm

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
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Q3: How do you ensure on-time delivery for bulk orders? 
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Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.