Tempered glass is 5-7 times stronger than ordinary glass, when broken, it forms many small fragments with blunt edges, which is much less dangerous than long and strong fragments with sharp wedge-shaped edges, formed when breaking ordinary glass.
Today, there is a trend towards increasing glass formats in glazing the facades of modern buildings. Tempered glass has two main advantages.
1 While 100 per cent of conventional float glass is destroyed by a temperature difference of 70°C, tempered glass can perfectly withstand a difference of 160°C between the edge and the middle of the glass.
2. By its nature, ordinary float glass is very sensitive to bending loads.
The tempering process creates high compressive stresses on the surface of the glass, while the middle experiences tensile stresses. This is why, tempered glass is able to withstand high bending loads..
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