Customization: | Available |
---|---|
Feature: | Long Time Materials |
Refractoriness (℃): | 650 C |
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Light Weight Fireproof calcium silicate boards is a new type of microporous structure rigid insulation materials, uses silicon oxide, calcium oxide, and the reinforcing fibers as the main raw materials, made through mixing, heating, gelling, molding, autoclaving and drying processes. It is known as the stability in different temperature, asbestos free and maintain high thermal insulation properties even at 650C.
Item |
Unit |
DK-25 |
DK-22 |
|
Density per ASTM 303 |
kg/m3 |
≤250 |
≤220 |
|
Maximum service temperature |
ºC |
650 |
650 |
|
Thermal conductivity per ASTM C 518/C1114 |
25 |
W/m.k |
|
|
50 |
≤0.060 |
|
||
93 |
≤0.065 |
≤0.065 |
||
149 |
≤0.072 |
|
||
200 |
|
≤0.077 |
||
260 |
≤0.087 |
|
||
300 |
|
≤0.088 |
||
371 |
≤0.102 |
|
||
400 |
|
≤0.106 |
||
500 |
|
≤0.127 |
||
538 |
≤0.111 |
|
||
Linear heat shrinkage per ASTM C 356 |
% |
≤2.0 |
≤2.0 |
|
Flexural Strength per ASTM C 203 |
Mpa |
≥0.344 |
≥0.30 |
|
Compressive strength per ASTM C165 |
Mpa |
≥0.689 |
≥0.45 |
|
Weight loss by Tumbling per ASTM C421 (First 10 minutes) |
% |
≤20 |
|
|
Weight loss by Tumbling per ASTM C421 (Ten 10 minutes) |
% |
≤40 |
|
|
Hot surface performance per ASTM C 411(650ºC) |
% |
1/4" (6) (no through-cracking) |
|
|
Surface burning characteristics per ASTM E841 |
Flame Spread Index |
|
0 |
|
Smoke Index |
|
0 |
|
|
Moisture content per ASTM C 1616 |
% |
≤20 |
|
|
Non-combustible property Per ASTM E 136 |
|
pass |
|
|
Chiorine content |
|
ASTM C 795 |
|
Company Information
DKJL refractories exporting company is one of the most professional suppliers of refractories in China. Our main products are refractory and thermal insulation materials, heating elements, industrial ceramics. They are available in various sizes and shapes. Our products enjoy a good reputation for their excellent quality and service in domestic and international markets.