Pipe insulation material

Thermal and Optical Properties

Fiberglass is inorganic fiber and will not combustion

Thermal Expansion Coefficient：4.8*10-6cm/cm/℃

Specific heat：0.19cal/g℃

Thermal conductivity Coefficient： 0.040w/cm.k

Heat Resistant Temp: 700℃

Conversion Rate（25℃）：1.55

Mechanical Properties

Fiberglass has high tensile strength and good stability in length

Tensile Strength：350kg/mm2

Elastic Modulus：7300kg/mm2

Horizontal Tensile Strength：35.6N/50mm

Vertical Tensile Strength：97.2N/50mm

Conductance

Fibreglass have good electric insulation

Permittivity：102Hz104Hz-6.32,  1010Hz-6.11

Loss Tangent: 102Hz-0.0042,   102Hz-0.006

Volume Resistivity：1010Ωcm,

Corrosion

Fibreglass will not absorb water, will not contribute to metal corrosion and will not decay

Fiberglass Chemical Composition（Weight％）

SiO2

Al2O3

CaO

MgO

B2O3

Impurity

R2O

Fe2O3

Other

54.1±0.5

14.6±0.4

16.6±0.3

4.6±0.3

8.8±0.5

＜0.8

＜0.5

Allowance

Temperature（℃）

25°

100°

200°

300°

400°

500°

600°

700°

Thermal Conductivity

（kcal/mhr℃）

0.030

0.037

0.048

0.058

0.076

0.094

0.112

0.16

（Hz）

125

250

500

1000

2000

4000

sound absorption coefficient

0.32

0.76

0.94

0.96

0.95

0.98

Thickness

Density（kg/M3）

Weight（kg/ roll）

Length(M)

3MM

130

12-20

40

4MM

130

16-27

40

5MM

130

18-24

30

6MM

140

22-31

30

8MM

140

20-30

20

10MM

140

24-36

20

12MM

150

32-43

20

15MM

160

30-40

15

20MM

180

32-40

10

25MM

180

40-50

10