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Composition:Al2O3+SiO2+CaO+MgO
Main Raw Material:Expanded vermiculite
Size:230*114*65mm or customized
Color:Yellow
Product Introduction
Vermiculite board is a fireproof product made from vermiculite and treated for use in a variety of ways. It is often used as firebrick, shelves for kilns in which things like ceramics are fired and hardened, and in industries that work with substances like molten metal and glass. Vermiculite board also provides insulation and deadens sound.
Features
1. Heat insulation and high temperature resistance.
2. Lightweight material.
3. Sound-proofing.
4. Easy to install.
Application
It can be used in steel ladle, underground pipe and greenhouse pipe, etc.It is excellent heat preservation & sound-absorbing material.
Technical Data
|
Items |
Vermiculite board |
Test Standard |
|
Bulk Density |
400kg/m3～500kg/m3 |
GB/T2997-2015 |
|
SiO2（%） |
48.91 |
GB/T21114-2019 |
|
Al2O3（%） |
9.89 |
GB/T21114-2019 |
|
Fe2O3(%) |
4.80 |
GB/T21114-2019 |
|
CaO(%) |
2.18 |
GB/T21114-2019 |
|
MgO(%) |
19.89 |
GB/T21114-2019 |
|
K2O |
6.86 |
GB/T21114-2019 |
|
Water Content |
<5% |
GB/T5486-2008 8 |
|
Cold Crushing Strength |
>1.6 MPa |
GB/T5486-2008 6 |
|
Volumetric Water Absorption |
11% |
GB/T5486-2008 9 |
|
Bending Strength |
>2.5MPa |
GB/T5486-2008 7 |
|
Tensile Strength |
>2MPa |
GB/T10295-2008 |
|
Frost Resistance |
10 Times |
GB/T4111-2019 12 |
|
Thermal Conductivity |
||
|
200℃ |
0.101W/m.k |
GB/T10295-2008 |
|
400℃ |
0.135W/m.k |
GB/T10295-2008 |
|
600℃ |
0.153W/m.k |
GB/T10295-2008 |
|
800℃ |
0.160W/m.k |
GB/T10295-2008 |
|
Dimension Tolerance(70℃±2℃) |
||
|
Length |
0.1% |
GB/T8811-2008 |
|
Width |
0.1% |
GB/T8811-2008 |
|
Thickness |
0.2% |
GB/T8811-2008 |
