Shenzhen YGY Tempered Glass Co.,Ltd.

Shenzhen YGY Tempered Glass Co.,Ltd.

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Home ProductsLow Iron Tempered Glass

3.2mm,4mm high transmission Coating low iron tempered glass,mad in china

3.2mm,4mm high transmission Coating low iron tempered glass,mad in china

3.2mm,4mm high transmission Coating low iron tempered glass,mad in china

Product Details:

Place of Origin: China
Brand Name: Hehe
Certification: SPF,3C,TUV,ISO9001
Model Number: 3.2mm,4.0mm
Solar energy materials: pv products

Payment & Shipping Terms:

Minimum Order Quantity: 1000 Sqm
Price: $4.85/sqm
Packaging Details: Pallet,Crat.
Delivery Time: within 10 days after confirmed
Payment Terms: T/T,L/C at sight.
Supply Ability: 500,000SQM.
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Detailed Product Description

1 Specification

Thickness: 3.2mm/4mm

Max size: 2300mm*1500mm 

Edge: Straight Edge 

Corner: Cut

Type: single coating, Double coating

Surface patterns: one side Patterned

            

2 Performance Data Sheet 

Inspection Item

Test Method

StandardValue

Unit

Detection Data

Light Transmittance

(D65) (within the spectral range of wave length between 380nm-1100nm)

>93.5

%

94.11

Pencil Hardness

GB/T 6739

≥4

H

5

Brushing Resistance Test

After 400times of brushing tests, measure the attenuation value of light transmittance

≤1.0

%

0.4

Water Resistance

After 96 hours water resistance test, measure the attenuation value of light transmittance

≤0.5

%

0.1

Acid Resistance Test

Steep the sample in the hydrochloric acid of  1mol/L under the temperature of 23℃±0.2 ℃ for 24 hours, measure the attenuation value of light transmittance.

≤1.0

%

0.3

Salt Spray Test

NaCl solution of 5% ±1%,spray under 35℃ for 96 hours, measure the attenuation value of light transmittance

≤1.0

%

0.15

Temperature Resistance Test

Repeat 200 times (about 1000hours) under the temperature from -40℃ to 85℃±0.2 ℃, measure the attenuation value of light transmittance

≤1.0

%

0.63

Humid Heat Test

Temperature 85±0.2℃,relative humidity 85% ±5%, test time 1000 hours, measure the attenuation value of light transmittance

≤1.0

%

0.52

Wet AND Freeze Test

Relative humidity 85% ±5%,reduce the temperature from 85℃±0.2 ℃ to -40 ℃ for 10 times, measure the attenuation value of light transmittance

≤1.2

%

1.05

Sand and Dust Test

Under 23 ℃, maintain the humidity lower than 30%,adjust wind speed at 8.9    ±1.2m/s, blowing dust concentration 10.6± 7g/m3 for 6 hours; adjust wind speed at 1.5± 1m/s,raise temperature to 60℃ for 16 hours; adjust

wind speed at 8.9± 1.2m/s, blowing dust concentration 10.6 ± 7g/m3 for 6 hours,

then measure the attenuation value of light transmittance

≤1.0

%

0.88

 

3 Thermal Properties

Heat transfer Coefficient

5.8 W/m2K

Expansion Coefficient between 20-300℃ 

per℃=9.03×10-6 m/K

Specific heat capacity 

0.2 J/Kg·K

Calculated Thermal Conductivity at 20℃ In

1.0 W/mK

Softening Point 

~720℃

Annealing Point 

~550℃

Stain Point 

~500℃

 

4 Mechanical Properties 

Moh’s Scale(Scratch hardness) 

4~5

Knoop Hardness Number

(indentation Hardness) indenter load-500 grams

470

Poisson’s Ratio

0.2

Density

2.5 g/cc

(Yong’s) Modulus of Elasticity

73.000N/mm2

Tensile Strength

43 N/mm2

Pressure resistance

700-900N/mm2

Mechanical Strength

90N/Mn2

 

5 Quality Standard List

 

5.1 Tolerance Range

 

Iterm

Index

Thickness tolerance 

±0.2mm(3.2mm)

Dimension tolerance 

±1.0mm

Diagonal difference

≤2mm (diagonal size< 1000mm),

≤4mm (diagonal size>1000mm)

Iron content

<115pm

Overall Bow/warp

<0.2%

Local warp

<0.3mm within 300mm

 

5.2 Reasonable Defects Data

 

Iterm

Index

Unclear Pattern

Visible

Not Allowed 

Bubble

Micro bubbles

≤3.0/㎡

Length(L) ㎜

2≤L<5

5≤L<10

L≥10

Number Allowed

6*S

3*S

0

Inclusion

Length(L)㎜

2≤L<3

L≥3

Number Allowed

4*S

0

Line

 

Visible

Not Allowed 

Number Allowed

Dents

Visible

Not Allowed 

Number Allowed

Wrinkle

Visible

Not Allowed 

Scratch

Visible

4pcs(L<5mm,W≤1mm),

2pcs(L<5-10mm,W≤1mm),

1pc (L<10-25mm, W≤1mm)

Number Allowed

Crack

 

Should Not Visible

Edge

Broken Edge, Corner

≤1pc

Nick, Flange

L≤10mm; W≤2mm,thickness≤1mm.

Note:

1,L means length and W means width. S means the area of glass in Meter. Number Allowed is the product of S and its coefficient.

2,Less than 8 bubbles (smaller than 2mm) within one circle with a diameter of 100mm.

3,Devastating inclusion not allowed.

           

 

6 Packing

Vertical and Horizontal packing, plywood/wood case, inter paper between glass, adding desiccant.

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