Black Glass Balls

Black glass balls are made with 2.60 and 3.17 densities
Black glass balls are typically used in flowmeters and rotameters for medical instrumentation where density and geometrical precision of the black glass ball are critical.

Diameter range:	0,5 mm – 12,7mm
Grades:	I – III
Hardness (KNOOP-KHN):	530
Melting point:	610°C
Density:	3,21g/cm³

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Physical and mechanical properties are not guaranteed. They are intended only as a basis for comparison and not for design purposes.