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Boron Nitride Spherical Powder (BN)

Spray-dried agglomerated spherical boron nitride (D50 40–100µm) for thermal interface materials and cooling fillers — most BN is platelet-form; this is the spherical/agglomerated grade specifically. Small quantities, prototypes and custom made-to-order specifications are welcome.

Request a QuoteRequest Custom Specification
D50 40–100 µmParticle Size Range
≥80% BNPurity Grade
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping

Boron Nitride Spherical Powder — Grades & Specifications

Spray-dried agglomerated spherical boron nitride (D50 40–100µm) for thermal interface materials and cooling fillers — most BN is platelet-form; this is the spherical/agglomerated grade specifically. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.

MaterialBoron Nitride Spherical Powder
Chemical formulaBN
CAS number10043-11-5
Particle sizeD50 40–100 µm (spray-dried agglomerated spherical grade)
Purity≥80% BN (contains inorganic binder in agglomerated grade)
MorphologySpray-dried agglomerated spherical (platelet BN agglomerated into spherical granules)
AppearanceWhite powder
Typical applicationsThermal interface materials, Cooling fillers, Polymer composite filler, LED thermal management

Applications by Industry

Thermal interface materialsHigh-thermal-conductivity TIM filler.
Cooling fillersElectronics thermal-management filler.
Polymer composite fillerThermally conductive, electrically insulating filler.
LED thermal managementHeat-dissipation filler for LED packaging.

Particle Size & Mesh Conversion

Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.

Mesh (US)Micron (µm)mmInchRemarks
367306.7300.2650
447604.7600.1870
540004.0000.1570
633603.3600.1320
728302.8300.1110
823802.3800.0937
1020002.0000.0787
1216801.6800.0661
1414101.4100.0555
1611901.1900.0469
1810001.0000.0394
208410.8410.0331
257070.7070.0278
305950.5950.0234
355000.5000.0197
404200.4200.0165
453540.3540.0138
502970.2970.0117
602500.2500.0098
702100.2100.0083
801770.1770.0070
1001490.1490.0059
1201250.1250.0049
1401050.1050.0041
—1000.1000.0039Sand
170880.0880.0035
200740.0740.0029
—700.0700.0027
230630.0630.0024Human hair
—550.0550.00217
270530.0530.0021
—500.0500.00197
325440.0440.0017
—400.0400.00157
400370.0370.0015
550250.0250.00099
625200.0200.00079
1200120.0120.0005
1250100.0100.000394
—70.0070.000276
250050.0050.000197
480030.0030.000118
50002.50.00250.000099Bacteria (approx.)
1200010.0010.0000394

Information Required for Quotation

  • Grade / purity (e.g. ≥80% BN)
  • Particle size / target (µm, or mesh)
  • Quantity
  • Application environment
  • Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.

Request a Quote or Custom Order

Tell us your grade, particle size and quantity. We typically reply within one business day.

Or email us directly at sales@koreanewmaterials.com · +82-2-599-3209

Thank you — your request has been prepared. If your email client did not open, please email sales@koreanewmaterials.com.

Frequently Asked Questions

What purity / grade options are available for Boron Nitride Spherical Powder?
Boron Nitride Spherical Powder is offered in the grades listed on this page (≥80% BN (contains inorganic binder in agglomerated grade)). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for Boron Nitride Spherical Powder?
The typical size range supplied is D50 40–100 µm (spray-dried agglomerated spherical grade). Please specify your target value in the request form and we will confirm availability.
Can Boron Nitride Spherical Powder be made to custom specifications?
Yes. Boron Nitride Spherical Powder can be produced to order — grade, particle size and packaging can be customized to your specification. Select “Custom Order” in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship Boron Nitride Spherical Powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.

Related Products

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Request a Quote for Boron Nitride Spherical Powder

Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.

Request a Quote