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Heat treated glass

Heat treated glass

Heat treated glass

Product catalog summary
Overview of Heat-Treated Glass Types
Heat-treated glass is designed to enhance resistance to mechanical and thermal stresses. There are three primary types of heat treatment: heat-strengthened glass, thermally toughened glass, and thermally toughened and heat-soak treated glass. Thermally toughened and heat-soak treated glass are considered safety glasses due to their fragmentation pattern upon breakage, unlike heat-strengthened glass.
Heat Strengthened Glass
This type of glass undergoes controlled heating and cooling, resulting in a surface compression state. It offers greater bending resistance than annealed glass but less than thermally toughened glass. It does not require heat soaking and is suitable for applications where thermal shock risk is high. Once treated, it cannot be further processed.
Heat Soaked Toughened Glass
Thermally toughened glass is further treated with a heat-soak process to eliminate glasses with impurities that may cause premature breakage. This treatment is crucial for applications requiring high mechanical and thermal resistance. The risk of spontaneous breakage is significantly reduced, but the glass cannot be processed post-treatment.
Toughened Glass
Similar to other types, toughened glass is treated to lock the surface in compression, enhancing resistance to mechanical shocks and thermal stresses. It is widely applicable in situations demanding high durability and safety. Post-treatment processing is not possible.
Standards and Specifications
The document references standards such as EN 410, ISO 9050, and EN 673 for spectral measurements and emissivity. It notes that the document is informational and subject to change, with no liability for deviations from site conditions.
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Catalog excerpts

Heat treated glass-1

Heat treated glass toughened glasses Heat strengthened glass, Heat soaked toughened glass, Toughened

 Open the catalog to page 1
Heat treated glass-2

Heat treated glass toughened glasses Glasses can be heat-treated to increase their resistance to mechanical and thermal stresses There are three types of heat treatment: • • • heat-strengthened glass thermally toughened glass thermally toughened and Heat-Soak treated glass When broken, thermally toughened glass and thermally toughened and Heat-Soak treated glass fragment in such a way that they can be considered safety glasses. This is not the case with heatstrengthened glass.

 Open the catalog to page 2
Heat treated glass-3

Heat treated glass toughened glasses Heat strengthened glass Like thermally toughened glass, heat-strengthened glass is treated using a method of controlled heating and cooling that locks the surface of the glass in a state of compression. This method produces a glass with a bending resistance greater than that of annealed glass but less than that of thermally toughened glass since the glass is cooled more slowly. Heat-strengthened glass does not require heat soaking. Many glasses in the AGC Glass Europe range can be heat-strengthened: clear or coloured Planibel, Stopsol, Sunergy, Imagin and...

 Open the catalog to page 3
Heat treated glass-4

Heat treated glass toughened glasses Heat soaked toughened glass Thermally toughened HST glass treated using a method of controlled heating and cooling that locks the surface of the glass in a state of compression. Once it has been toughened, the glass is placed in a furnace where it undergoes a special heating cycle that causes some glasses containing inclusions or impurities to break prematurely. This is known as heat-soak treatment. Virtually all the glasses in the AGC Glass Europe range can be thermally toughened and subjected to heatsoak treatment: clear or coloured Planibel, Stopsol, Sunergy,...

 Open the catalog to page 4
Heat treated glass-5

Heat treated glass toughened glasses Toughened glass Glass which has been heat-treated using a method of controlled heating and cooling that locks the surface of the glass in a state of compression. Virtually all glasses in the AGC Glass Europe range can be thermally toughened: clear and coloured Planibel, Stopsol, Sunergy, Stopray, Imagin and so forth. Some types of glass with 'magnetron' coatings can also be toughened, provided a few adjustments are made to the toughening procedures. Use: single glazing, insulating glazing, laminated glazing and so on-primarily for applications where the following...

 Open the catalog to page 5

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.