Walter Stern, Inc.
68 Sintsink Drive East, P.O. Box 571, Port Washington, NY 11050-2053
Phone: 516.883.9100 • Fax: 516.767.0400
Email: waltersterninc@aol.com • Web Address: www.walterstern.com
All Categories > Glass Beads > Glass Balls - Solid Borosilicate > Item # 102D  


Item # 102D, Glass Balls - Solid Borosilicate

Packaging: One pound plastic jars
Availability: Immediate from stock





Specifications  · Viscosity (Poise)  · Electric Properties  · Chemical Properties  · Hydrolitical Class  · Acidity Class  · Alkaline Class  · Diameter & Sphericity Variation

Specifications

Sizes
4 mm

Estimated Pieces per lb.
5200

Packaging
One Pound Plastic Jars

Material
Solid Borosilicate

Manufacturing Process
Rods, Blown and Pressed

Linear Expansion Coefficient

 View
(10-6 K-1 ) 3.3±0.1

Transformation-Temperature

 View
530 ºC


Viscosity (Poise)

Low Degree of Cooling
510 ºC

High Degree of Cooling
568 ºC

Softening Point
815 ºC

Processing Temperature
1264 ºC

Density
2.23 g/cm³

Temperature-Change-Constant

 View
250 ºC

Module of Elasticity
6.3 E-10-5 kp/cm²

Heat Conduction at 20ºC
1.00 kcal/mh grd


Electric Properties

Temperature for 0-108 Ohm-cm
248 ºC

Specific Electric Resistance
Constant of Equation -1.44 A+ B/T Absolute Temperature 4.91º K-B-103

Dielectric Constant at 1 MHz and 25ºC
4.6

Dielectric Loss Angle at 1 MHz and 25 ºC
55

Point of Refraction

 View
1.473 n d


Chemical Properties

Resistance to Water

 View
0.026

Resistance to Water, Figured as Equivalent

 View
0.008


Hydrolitical Class

Hydrolitical Class
1

Resistance to Acid

 View
0.35


Acidity Class

Acidity Class
1

Resistance to Alkaline

 View
134


Alkaline Class

Alkaline Class
2


Diameter & Sphericity Variation

Diameter & Sphericity Variation
Maximum ±10% of Glass Ball Diameter



Print Back