6mm Diameter Borosilicate Glass Balls

In Stock


Colour: Clear
Typical sizes available: 1mm – 50mm

Hardness: HRC 420-520
Density: 2.23 g/cm3
Standard Precision Grade: 500

Due to its chemical inertia to most acids, this kind of glass is particularly suitable for metering pumps and valves against strong oxidising concentrations.

Standard Chemical Composition %
SiO2 Na2O CaO Al2O3 B2O3 MgO
81 4 - 2 13 -