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Various types of glass thickness specifications

Float glass

According to the national standard "ordinary flat glass" (GB4871-1995) and "float glass" (GB11614-89), the glass according to its thickness can be divided into the following specifications:

Flat tempered glass thickness of 3.4,5,6,8,10,12,15,19 mm ets.

Curved tempered glass thickness is also 3, 4,5,6,8,10,12,15,19 mm ets.

Drawing the law of ordinary production of flat glass: 2mm, 3mm, 4mm, 5mm four types.

Float glass: 3mm, 4mm, 5mm, 6mm, 8mm10mm, 12mm seven types.

The glass produced by drawing-drawing method shall not have a length-width ratio of more than 2.5, of which 2,3 mm thick glass shall not be less than 400 mm × 300 mm, and 4,5,6 mm thick glass shall not be less than 600 mm × 400 mm. Float glass size is generally not less than 1000mm × 1200mm, 5,6mm up to 3000mm × 4000mm.

According to the national industry standard JC433-91 provides that the thickness of the folder wire glass is divided into: 6,7,10 mm, size is generally not less than 600mm × 400mm, not more than 2000mm × 1200mm.

Ordinary flat glass

1、3 - 4 mm glass, mm in the daily also known as PCT. We are talking about 3 PCT glass, refers to the thickness of 3mm glass. This type of glass is mainly used for the frame surface.

2、5 - 6 mm glass, mainly for the external walls of windows, doors and other small area of light transmission and so on.

3、7 – 9 mm glass, mainly used for indoor screens and other large area but there are frameworks to protect the shape of.

4、9 – 10 mm glass, can be used for indoor large-scale partition, bar and other decoration items.

5、11 – 12 mm glass, can be used to spring the door and some of the activities of the glass doors are among the larger flow.

6、15mm or more glass, the general market less sales, often need to order, mainly for large areas of floor spring glass door glass wall.


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