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Precision Polished Borosilicate Glass Spheres - Calibration Spheres - Precision Glass Reference Beads
Precision Polished Borosilicate Glass Spheres - Calibration Spheres - Precision Glass Reference Beads

Borosilicate Glass Solid Polished Spheres 2.2g/cc - 2.0mm to 7.0mm

Product Line: P-BSGS

Precision Polished Solid Borosilicate glass spheres are available in a range of sizes from 2.0mm to 7.0mm. Additional sizes upto 55mm are available on a custom basis. Precision Glass Spheres are often used as reference particles or calibration beads for applications that require tight tolerances. Also available in Precision Polished Soda Lime Glass Spheres.

Classified and bulk grades of borosilicate glass spherical particles:
Solid Borosilicate Glass Microspheres

Diameter Tolerance: 
±20um
Roundness/Sphericity: 
≤20um; >99% (Ratio of Width/Length)
Density: 
2.2g/cc+/-0.1g/cc
Index of Refraction: 
1.48
Softening Temperature: 
830°C
Specific Thermal Conductivity:  
1.14W/K-m
Thermal Expansion: 
3.2x10-6K-1 (at 20°C)
Diellectric Strength:
30kV/mm
Youngs-Modulus:
64GPa
Linear Thermal Expansion:
3.3x10-6>-1 (20-300°C)
Select Particle Size and Density:
Item # Description/Size Status Price Qty
P-BSGS-2.2 1.99mm - 100pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 1.99mm - 100 pieces
 In Stock $116.75
P-BSGS-2.2 2.99mm - 100pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 2.99mm - 100 pieces
 In Stock $123.94
P-BSGS-2.2 3.99mm - 100pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 3.99mm - 100 pieces
 In Stock $145.49
P-BSGS-2.2 4.99mm - 100pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 4.99mm - 100 pieces
 In Stock $193.73
P-BSGS-2.2 5.99mm - 50pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 5.99mm - 50 pieces
 In Stock $116.75
P-BSGS-2.2 6.00mm - 50pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.00mm - 50 pieces
 In Stock $116.75
P-BSGS-2.2 6.98mm - 50pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.98mm - 50 pieces
 In Stock $160.99
P-BSGS-2.2 6.99mm - 50pieces
Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.99mm - 50 pieces
 In Stock $160.99
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