Specifications

toughened glass 4mm
Glaston toughened furnace
4mm clear glass facade
Export to over 20 countries
CCC,meet EN/BS/NZS/ANSI

Widely used for windows & doors, shower room, balustrade, pool fencing, skylight, furniture desktop, partition, solar panel, curtain wall, greenhouses, etc.

Tempered/toughened glass is made from annealed glass via a thermal tempering process in which the glass is heated till its softening point about 650 degrees and then quenching quickly to become Tempered glass or heat strengthened glass

Characteristics

A fully Tempered glass is 3 to 5 times stronger than annealed glass of similar thickness. A fully Tempered glass is regarded as a safety glass and when it breaks it disintegrates into small blunt pieces/ small oval-shaped pebbles which greatly reduce the chances of injuries

1) Strength - Fully low-e Tempered glass is generally 3 to 5 times stronger than annealed glass and twice as strong as heat strengthened glass of similar thickness, size and type. For fully Tempered glass the minimum surface compression is 10000 psi and for a heat strengthened glass is 4000-7000 psi for 6 mm glass.

2) Safety - When broken by impact, fully Tempered glass immediately disintegrates into small oval-shaped pebbles, thus greatly reducing the likelihood of cutting person



Properties of Tempered glass


Data

Density (Approximate)


2.42-2.52 g/cm

Tensile Strength


120 to 200 N/sq.mm

Compressive Strength


1000 N/mm2

Modulus of Elasticity


70Gpa

Coefficient of linear expansion


9 x 10-6 m/Mk

U Value


5.7W/m2C for 6mm Tempered glass

SF for 6 mm clear


81 %

SC of 6 mm clear


0.93

Selectivity


1.0

VLT of 6 mm tempered glass


87%





Clear Tempered glass thickness:

3mm, 3.2mm, 4mm,5mm,6mm,8mm,10mm,12mm,15mm,19mm



Color:

Clear, Ultra clear

Tinted, Grey, green, bronze, blue etc.

Reflective & low-e (including double silver low-e) etc.



Main Products we process:

a. Flat tempered/toughened glass

b. Curved tempered/toughened glass

c. Insulated glass

d. Tempered/toughened insulated glass

e. Laminated insulated glass

f. Tempered low-e insulated glass

g, Double silver low-e insulated glass

h, low-e insulated glass with TGI spacer

i. Silk screen printing glass

j. Frosted glass/land blasted glass, acid etched glass

k. Hot bent glass