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Borosilicate Glass Products

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High Precision Borosilicate Glass Tubing

Product Item : HYRD-E002
Category： Borosilicate Glass Products
Material: Borosilicate Glass
Purity: 80%
Long-Term Use Temperature: 450°
Hardness:7 Class
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High Precision Borosilicate Glass Tubing

We supply various dimensions of borosilicate glass tubes, made from good material and high precision.

Mechanical Properties of High Borosilicate Glass

Main Chemical Composition	SiO2 80.4%, B2O3 12.7%, Al2O3 2.4%, Na2O+K2O 4.2%
Density (20℃)	2.23g/cm³
Silicon Content	Over 80%
Hardness	7 Class
Elastic Modulus E	64KN/mm²
Tensile Strength	40-120Nmm^-2
Poisson's Ratio U	0.2

Thermal Properties of High Borosilicate Glass

Coefficient Of Linear Expansion (20-300℃)	3.3*10^-6K^-1
Long-Term Use Temperature	450°
Maximum Working Temperature/Short-Term Use Temperature	500°C
Strain Temperature	520℃
Annealing Temperature	560℃
Softening Temperature	820℃
Crystallization Temperature	695℃-1180℃
Processing Temperature (104dpas)	1220℃
Melting Temperature	1680℃
Heat Resistance Temperature Difference	270℃
Specific Heat	0.98Jg-1K-1
Thermal Conductivity	1.2Wm-1K-1

Electrical Properties of High Borosilicate Glass

Due to its low alkali content, high borosilicate glass can be used as a high insulator, so it is suitable for applications where materials with good non-conductive properties are required at high temperatures (up to 450°C). Because of the unique structure of borosilicate glass, high borosilicate glass has a neutron absorption effect.