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Nuclear Boron Carbide Grades

  • We can provide full and complete NQA1, II, & III (Nuclear Quality Assurance) Certifications. 
  • Used by the United States government for nuclear waste disposal and other radiation shielding applications.
  • Now offering B4C coatings, paints, rubber and aluminum sheets, metal matrixes, etc.
  • Radiation Shielding, Neutron Absorption, Concrete Additive, B10, Ballistic Armor, Control Rods, Nuclear Shielding Panels
  • ASTM C750 & NQA Certifications available
  • Custom Milling is available!
  • Request A Quote

 

UKA Grade Ungraded
Particle Size
Typical Application Notes
  NG600 600 micron Coarse 30 grit, ~600 micron B4C, Additive to concrete Type I, II, III available
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

 

Radiation shielding is often accomplished with the use of boron carbide. Boron is an important material for nuclear applications due to its high neutron absorption cross section (760 barn* at neutron velocity of 2200 m/sec). The cross section of the B10 isotope in boron is considerably higher (3800 barn).
In addition, boron doesn't contain decay products with a long half-life and high-energy secondary radioactive materials. Since pure boron is extremely brittle and difficult to produce in shapes (for example: control rods) boron carbide is the material of choice to use since it provides a high concentration of boron atoms in a strong and refractory form and is relatively easy to fabricate.

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