This grade is commonly used in nuclear shielding panels, reaction control rods, etc. 76% Boron content minimum, plus additive for enhanced heat transfer. NQA1 certs are available. Call to discuss. This item cannot be purchased on-line.
Technical data
• Appearance (dry state): | Color | Black |
---|---|---|
• Chemical composition: | Chemical formula: | B4C Application |
Grade | NG (Nuclear) | |
B + C min. | 98 | |
B (Boron) min. | 76 | |
C (Carbon) max. | 24 | |
B2O3 | 0.1 | |
Fe(Iron) max. | 0.1 | |
Si(Silicon) | 0.01 | |
N (Nitrogen) | 0.5 | |
Isotope B10 (atomic weight) | 19.5-21.5% | |
•Physical data: | Knoop hardness(0.1) | 3000 |
Mohs hardness | <9.5 | |
Specific gravity: | 2.51 | |
Melting point: | 2723 °F | |
Structure: | Monocrystalline |
Common Nuclear Grades:
|
UKA Grade | Ungraded Particle Size | Typical Application | Notes |
1. | NG112M | 112 micron | Additive to concrete | B<75% |
2. | NG36L | 36 micron | B<70% | |
3. | NG24H | 24 micron | Nuclear Shielding Panels, Reaction Control Rods, Etc. |
B>76% |
4. | NG24HE | 24 micron | B>76% + Enhanced Heat Transfer Capability | |
5. | NG100H | 100 micron | B>76% | |
6. | NG100HE | 100 micron | B>76% + Enhanced Heat Transfer Capability | |
7. | NG6H | 6 micron | B>76% | |
8. | NG6HE | 6 micron | B>76% + Enhanced Heat Transfer Capability |