These planchets are prepared from high purity beryllium (min. 98.5%) by electro-fusion to provide vacuum tight (~1x109atm-cm3/sec) and ±10% dimensional tolerances.
Notes:
- Beryllium is a hazardous substance. Care should be taken seriously when working with this material.
- Beryllium is a strategic commodity that is controlled by the U.S. government for reasons of nuclear non-proliferation and antiterrorism. Its ECCN No is 1C230. If you export this material, you must follow the Export Administration Regulations. Diversion contrary to U.S. Law is prohibited
- Electron Microscopy Sciences is supplying this material for domestic use only. Not available for export.
- Following is the typical Specification Limits of our Be that supply by us:
Specification Limits
Lot Identification: Lot Number 5077
| Chemistry Composition |
Unit |
Value |
Lower Limit |
Upper Limit |
| Beryllium Assay |
% |
99.00 |
98.5 |
— |
| Beryllium Oxide |
% |
0.90 |
- |
1.50 |
| Iron Content |
% |
0.1000 |
- |
0.1300 |
| Aluminum Content |
% |
0.04 |
- |
0.10 |
| Magnesium Content |
% |
<0.0100 |
- |
0.0800 |
| Silicon Content |
% |
0.0300 |
- |
0.0600 |
| Carbon Content |
% |
0.13 |
- |
0.15 |
| Other Metallic– each |
% |
<0.0400 |
- |
0.0400 |