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Beryllium products
Beryllium Oxide
Beryllium Oxide Powder
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Physical and chemical properties
Name |
Grade |
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В-1* |
Н-4** |
Mass fraction of ВеO, %, min. |
99,5 |
99,5 |
Oxides content: Mn, Ni, Fe, Ca, Si, Mg, Cu, Al, Zn Cr, Na, % max. |
0,5 |
0,5 |
Bulk density, g/cc, min |
1,2-1,4 |
0,5 |
specific area, m2/g |
- |
0,6-1,5 |
* B-1 Grade of nuclear purity, Boron Equivalent shall be determined by the Customer's request which should not exceed 3 mb
** Н-4 Grade – ceramic grade |
Beryllium Oxide articles with Be 35,9 wt. %, min
Main characteristics
Mass fraction of ВеO, %, min. |
99,5 |
Electric resistance, Оhm |
1х1011 |
Thermal conductivity, Cal/sec x сm°С, at residual pressure 6,67Pa |
0,6 |
| Break-down voltage, kV/mm, min
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50 |
Linear Expansion Temperature Coefficient 1/degr °С within the interval of the temperature range from 100°С to 900 °С |
(1,0-11,0)х10-6 |
| Apparent density, g/cm3, min
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2,85 |
Beryllium Oxide Base Ceramics
| Product Name |
Designation |
Dia.Out/Inn., mm |
Length, mm |
Thickness, mm |
| Tubes |
As gas discharge channels for different types of lasers |
5-30 (1-20) |
До 1500 |
2 - 10 |
| Covers for Thermocouples |
For insulation of thermocouples, operating at temperature up to 2000 degr. C |
5 - 2 (2-1.0) |
40 - 1500 |
1.75 - 2.5 |
| Straw |
1-5 (0,2-1.2) |
5 - 250 |
0.2 |
Rods
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As supporting insulation elements |
- |
200 - 600 |
0.8 - 20 |
Discs and Caps
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As waveguide windows of SHF devices, heat sink insulators and in power generating systems |
1.5 - 250 |
- |
1 - 30 |
| Crucibles |
For melting pure, superpure and refractory metals, alloys, optical and technical glasses |
8 ... 500 |
- |
3... 10 |
| Plates and crystal Holders |
As heat sinks insulators metal covered as substrates and crystal holders for SHF devices |
- |
1.9 - 300 |
0.6 - 30 |
Washers
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As heat sink insulators for fabricating and assembling transistors, diodes |
5 - 40 |
- |
1 - 3 |
  Material safety data sheet
Marketing department:
E-mail: Marketing-be@ulba.kz
tel/fax (7232)298-247
Beryllium products in the European market are sold by Tropag Oscar H. Ritter nachf. GmbH.
Beryllium products in the Chinese market and the South-East Asia
are also sold by ULBA-CHINA Co. Ltd.
e-mail info@ulba.cn
www.ulba.cn
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