- Contact Person : Mr. wu wenzhen
- Company Name : Shijiazhuang Jiahuang Trading Co., Ltd.
- Tel : 86-311-82445898
- Fax : 86-311-82445898
- Address : Hebei,shijiazhuang,donghe village lingshou town lingshou county
- Country/Region : China
- Zip : 050000
refractory material vermiculite
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high quality refractory material golden vermiculite
1.Chemical Composition of Vermiculite
Item | SiO2 | MgO | Fe2O3 | Al2O3 | CaO | K2O | H2O | PH |
Content % | 37-42 | 11-23 | 3.5-18 | 9-17 | 1-2 | 5-8 | 5-11 | 7-11 |
2.Silver Vermiculite
Size (mm) | Density (g/ml) | Specification (%) | Moisture (%) | Impurity (%) | Expansion rate (ML/G) |
2-4 | 0.7-1.1 | 85min | 5max | 8max | 8min |
3-6 | 0.8-1.1 | 85min | 5max | 8max | 8min |
6-12 | 0.8-1.1 | 85min | 5max | 10max | 10min |
3. Golden Vermiculite
Size (MM) | Expansion rate (ML/G) | Impurity (%) | Moisture (%) | Sand Content (%) |
2-4 | 5min | 8max | <3 | <15 |
3-6 | 8min | 10max | <3 | <15 |
6-12 | 10min | 15max | <3 | <15 |
4. Main Property of Expanded Vermiculite
Bulk Density (kg/m³) | Thermal Conductivity (W/{M·K}) | Fire-Proof (°C) | Temperature in Use (°C) | Water Absorption (%) | Anti-freezing
| Sound Absorption
| Corrosion Resisting
|
60-200 | 0.047-0.081 | 1300-1350 | 900-1000 | 26.5-40.6 | The parcicle size has no change,when it is freezed 15 times under -20°C. | 0.53-0.63 | Alkali-resisting |
refractory material vermiculite
