Place of Origin: Henan, China (Mainland)
Material: silica stone
SiO2 Content (%): >96%
Al2O3 Content (%): 0.23-0.45
MgO Content (%): 0.8-1.2
CaO Content (%): 0.01
Refractoriness (Degree): 1770°< Refractoriness< 2000°
CrO Content (%): 0.1~0.3%
SiC Content (%): 0.1~1.4%
Model Number: 96A
Brand Name: Annec
Bulk Density: 2.0-2.5g/cm3
Certificate: ISO BV SGS
Raw material: SiO2
Fe2O3: 0.5% Max
Advantage: Thermal Shock Resistance
Cold crushing strength(mpa): 40
Introduction of silica brick:
zero expansion silicon insulation brick light weight silica brick is made of quartz stone material, the content of SiO2 is above
96%,it has good resistance to acid slag and good heat conductivity.
And the refractoriness is 1690~1710°C,RUL is beyond 1680°C.
SiO2 has different types of crystals in different temperatures, and
the transform between the crystals will cause the change of the
bulk. So there is a close contact between the changes of SiO2
crystals and the produce ,performance and usage of silica bricks.
During the heating, there will be changes of the bulk ,and
cristobalite changes most, then quartz, phosphorus quartz is the
slowest of all and it also has good heat-conductivity.Coke oven
should use the silica brick with small true density. And the
phosphorus quartz is better than others.
zero expansion silicon insulation brick light weight silica brick
have the characteristics of low thermal conductivity, high load
softening temperature, small residual expansion, and excellent
reburning line change performance. They are suitable for industrial
furnaces such as coke ovens, hot blast furnaces, glass furnaces and
carbon furnaces. zero expansion silicon insulation brick light
weight silica brick is mainly used for the heat insulation layer
and working layer of thermal equipment, and can be used for the
heat insulation layer of various high temperature kiln equipment
under high temperature conditions (≤1500℃) without contact with
molten slag. This product is suitable for the heat insulation
material of the silica brick lining of the high temperature hot
blast stove of the large blast furnace and the heat insulation of
the silica brick masonry of the glass furnace.
Feature of silica brick :
1. Better durability. It can withstand continuous heat load within
the temperature limits.
2. Low thermal conductivity. It has the incomparable insulation
performance within the application range.
3. Light weight and high specific strength. Its specific strength
is the highest among the rigid insulation materials.
4. Long service life. It will not produce the powder after long
periods of operation as the ceramic fiber felt will do.
5. Better application adaptability. It can be Free Cutting by
ordinary woodworking tools.
6. Safe and clean. It has not toxic materials such as asbestos
sulfur and chlorine.
Not afraid of wetted. Its performance remain unchanged after being
Specification of silica brick :
Brick for roof ,wall of the hot blast stove
Cold Crushing Strength (Mpa)
0.2Mpa Refractoriness Under Load ( ℃)
0.2Mpa creep rate (1550℃)%
The Rest Quartz Content
The Coefficient of Thermal Expansion
Advantage of silica brick :
1. Good acid and erosion resistance, powerful anti high-temperature
2. Soften melting temperature is 1680 °C.
3. Low thermal shock resistance.
4. Natural silica as raw material, plus regular mineralizer.
5. Ensure good bonding and structural strength of furnace.
6. Good heat resistance and long service life.
Application of silica brick :
1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning
and so on.
2). As ceramic parts of flexible pad and channel heaters at
operations of pre and postweld heat treatment; Welding process,
stress-relieving, pre-heating & post heating, other
3). halogen lamps, high and low pressure uv lamps, mercury lamps,
uv lamp holders and heating tubes.
4). high-power electrical applicance and all kinds of insulation
Packaging & Shipping
Fumigated wooden pallet, using paper or non-woven fabrics between
layers separated,plastic shrink film protected outside.finaly using
the size of wooden pallet is 95x2375px,95x2500px
or as your requirements.
10-30working days after receiving deposit
1. Your inquiry related to our products or prices will be replied
2. Well-trained and experienced staffs to answer all your enquiries
in fluent English.
3. All our products have 1-year warranties.
4. Offering the support to solve the problem in the application or
5. Competitive prices based on same quality.
6. Guarantee samples quality same as mass production quality.
7. Adhering to the business philosophy "mutual trust, mutual
benefit, mutual profit, faith oriented",
8. we believe "customer is god , quality is unchangeable