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Industrial Ceramic High Pure 99% 99.7% Boron Nitride Cylindrical Metal Melting Crucibles with Lid


Product Description




VR


BN Boron nitride ceramic

BN Boron nitride ceramic is resistant to acid and alkali corrosion, has strong electrical insulation, and has an electrical breakdown strength of 3-4 times that of alumina. Boron nitride ceramics have excellent high temperature resistance.

Application: high temperature electric furnace components (high temperature insulation sleeves, etc.), metal evaporation crucibles, various devices for molten metal or glass, precious metal or special alloy casting mold parts, high temperature support and other stressed components, molten metal transport pipes, nozzles ect.

Material data:


Item
Value
Content of BN %
>99%
Density (g/cm3)
1.92
Compression strength (kg/cm2)
72
Rupture strength (kg/cm2)
55
Volume resistivity (Ω.cm)
>10^14
Dielectric constant (108hz)
4
Breakdown voltage (Kv/mm)
35
Thermal conductivity (W/m.k)
127
Porosity
>0.3%
Moh's hardness
2
The working temperature under vacuum or protective atmosphere is 2400C, and the working temperature under normal temperature conditions is below 1000C


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FAQ


Q1: How can know your quality?
We can send you samples or sample material for you to check or test.Let our physical samples speak loudly.
Q2:Are these samples free of charge?
Some standard small samples are free.If same as your requirements,we will just charge for mould to support.
Q3:If products are not to requirement,how can you do?
We will try our every best to solove it.Meeting your requirement is our mission.
Q4:What's the lead time?
Normally,for standard items,will ship within 1-10 days.For mass production order,we will finish within 30 working days after we receive payment.
Q5:Payment terms:
We can negotiate.


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