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Low Iron Glass is also called Ultra clear glass which is a kind of exceeding clarity high transmittance glass. It is a new type of high grade glass that has high performance and multifunction, the light transmittance achieves above 91.5%, it has the character of glittering and translucent, elegant and graceful, which has the title of crystal prince in glass family.
Low Iron Glass also has all the processable performances that high quality float glass has, has predominant physical, mechanical and optical characters, so it can been processed as other high quality float glass. Incomparably predominant quality and performance make the ultra clear glass has wider application space and brighter market foreground.
Thickness |
Visible Light Transmittance |
Visible Light Reflectivity |
Solar Radiant coefficient |
Shading coefficient |
U value |
Sound insulation |
UV penetration
|
||||||
Direct Penetrate |
Reflectivity |
Absorb |
Total Penetrate |
Short Wave |
Long Wave |
Total |
W/sqm.K |
Rm(dB) |
Rw(dB) |
||||
3mm |
91.5 |
8 |
91 |
8 |
1 |
91 |
1.05 |
0.01 |
1.05 |
5.8 |
26 |
30 |
76 |
10mm |
91.62 |
8 |
88 |
8 |
4 |
89 |
1.01 |
0.02 |
1.02 |
5.6 |
33 |
36 |
66 |
12mm |
91.44 |
8 |
87 |
8 |
5 |
88 |
1.00 |
0.02 |
1.01 |
5.5 |
34 |
37 |
64 |
15mm |
90.09 |
8 |
86 |
8 |
6 |
87 |
0.99 |
0.02 |
1.00 |
5.5 |
35 |
38 |
61 |
Mechanical Parameters
Elasticity Modulus |
73.1Gpa |
Rupture Modulus(Tensile Strength-ultimate) |
41.4 Mpa |
Knoop hardness |
456kgf/mm2 |
Physical Parameters
Density |
2.5076 g/cm3 |
20-300Centi-degree Linear Coefficient of Expansion 20-300 Centi-degree |
9.28×10-6 / Centi-degree |
Linear Coefficient of Expansion 20-450 Centi-degree |
9.75×10-6 / Centi-degree |
Transformation Temperature |
556 Centi-degree |
Intenerate Temperature or Yield Point |
606 Centi-degree |
Softening Point |
710 Centi-degree |
Annealing Point |
547 Centi-degree |
Strain point |
513 Centi-degree |
log2 High Temperature Viscosity log2 |
1392 Centi-degree |
log3 High Temperature Viscosity log3 |
1152 Centi-degree |
log4 High Temperature Viscosity log4 |
996 Centi-degree |
Liquid Phase Temperature |
1008 Centi-degree |
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