Ultra Clear Low Iron Glass

Specifications

General Properties

Glass Thickness Visible Light Transmittance Visible Light Reflectivity Solar Heat Radiation Shading Coefficient U value Acoustic Insulation UV Penetration
Direct Penetration Reflect Absorb Total Penetration Short Wave Long Wave Total Rm Rw
mm ％ ％ ％ ％ ％ ％ - - - W/m2K dB dB %
3 92 8 91 8 1 91 1.05 0.01 1.05 5.8 26 30 85
3.2 91.8 8 91 8 2 91 1.03 0.01 1.05 5.8 26 30 84
4 91.6 8 90 8 2 91 1.03 0.01 1.05 5.8 27 30 82
5 91.5 8 90 8 2 9 1.03 0.01 1.03 5.8 29 32 81
6 91.4 8 89 8 3 9 1.02 0.01 1.03 5.7 29 32 79
8 91 8 88 8 4 89 1.01 0.01 1.02 5.7 31 34 76
10 91 8 88 8 4 89 1.01 0.02 1.02 5.6 33 36 74
12 91 8 87 8 5 88 1 0.02 1.01 5.5 34 37 72
15 90 8 86 8 6 87 0.99 0.02 1 5.5 35 38 71
19 90 8 84 8 7 86 0.97 0.02 0.99 5.5 37 40 70
22 90 8 82 8 9 85 0.95 0.02 0.97 5.5 38 43 68

Mechanical Properties

Elasticity Modulus 73.1 Gpa
Rupture Modulus (Ultimate Tensile Strength) 41.4 Mpa
Knoop hardness 456 kgf/mm2

Physical Properties

Density 2.5076 g/cm3
Linear Coefficient of Expansion  20-300°C 9.28×10-6/°C
20-450°C 9.75×10-6/°C
Transformation Temperature 556°C
Intenerate Temperature or Yield Point 606°C
Softening Point 710°C
Annealing Point 547°C
Strain Point 513°C
High Temperature Viscosity log 2 1392°C
log 3 1152°C
log 4 996°C
Liquid Phase Temperature 1008°C

Sizes

Max. glass size is 3.66 x 12 m. Custom sizes are on request.