China Fireproof High Electrical Resistance Vermiculite Boards, Find details about China Fireplace Linings, Furnace from Fireproof High Electrical Resistance Vermiculite Boards
Quality | V-HGS450 | V-HGS550 |
Colour | Brown | Brown |
Service temperature °C | 1150 | 1100 |
Bulk density kg/m3 | 450 | 550 |
Porosity % | 81 | 76 |
Cold compressive strength MPa | 2.5 | 4.2 |
Flexural strength MPa | 0.6-0.8 | 1.2 |
Linear shrinkage at Service Temperature % | 1 | 1 |
Thermal conductivity 200 °C W/m K | 0.14 | 0.16 |
400 °C W/m K | 0.17 | 0.18 |
600 °C W/m K | 0.19 | 0.2 |
800 °C W/m K | 0.21 | 0.22 |
Specific heat capacity @ 400 °C kJ/kg K | 0.94 | 0.94 |
Chemical Properties: | ||
SiO2 % | 46 | 46 |
MgO % | 19 | 19 |
Al2O3 % | 7 | 7 |
Fe2O3 % | 5.5 | 5.5 |
CaO % | 3.5 | 3.5 |
K2O % | 10 | 10 |
LOI % | 7 | 7 |
Standard Sizes: | ||
Length mm | 1300 - 2200 | |
Width mm | 330, 610,900, 1000 | |
Thickness mm | 25-100 (38mm, Fire Door Core) |