The difference between high borosilicate glass and ordinary glass

Feb, 27. 2024 | 1102 View

The main differences between high borosilicate glass and ordinary glass include:

The ingredients are different

The main components of high borosilicate glass are boron trioxide and silicon dioxide, while the main components of ordinary glass are silicon dioxide. In the manufacturing process of ordinary silicate glass, water glass sand, soda water and ground lime are also added to improve its performance.

The coefficient of thermal expansion is different

High borosilicate glass has a very low coefficient of thermal expansion, about one-third of that of ordinary glass, which allows it to reduce damage caused by thermal stress when the temperature changes, thus having stronger fracture resistance.

Different resistance to cold and heat shock

The resistance of high borosilicate glass to cold and thermal shock is much stronger than that of ordinary glass, even under extreme temperature changes, it will not explode.

Different mechanical properties

The mechanical properties, hardness and abrasion resistance of high borosilicate glass are better than that of ordinary glass, and its surface damage is small and its service life is long.

Different chemical stability

High borosilicate glass has a strong resistance to water and acid erosion, but the alkali resistance is poor.

Different melting temperature

The melting temperature of high borosilicate glass is higher, usually around 1680 ° C, while the melting temperature of ordinary glass is lower.

Different uses

Because of its excellent performance, high borosilicate glass is often used in areas with high requirements, such as household appliances, environmental engineering, chemical engineering, lighting, semiconductor technology, medical technology and biological engineering, etc., while ordinary glass is mostly used in building doors and Windows and interior decoration.