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Yellow Insulating Silica Refractory Bricks Zero Expansion Heat Resistance

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Yellow Insulating Silica Refractory Bricks Zero Expansion Heat Resistance

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Brand Name : ANNEC

Model Number : YHRS

Certification : ISO, CE

Place of Origin : China

MOQ : 200 pcs

Payment Terms : D/P, T/T

Supply Ability : 3000 tons/month

Delivery Time : 5-8 working days

Packaging Details : formugation pallet conform to exporting packing

Color : Yellow

Refractoriness : ≥1790℃

Creep rate : ≥1500℃

apparent porosity : ≤23%

Bulk density : ≥1.8g/cm3

Fe2O3 : 0.5%-0.8%

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zero expansion silicon insulation brick light weight silica brick

Basic Info.

  • Place of Origin: Henan

  • Means of Transport: Ocean

Supply Capacity

  • Production Capacity: 20000 ton per year

  • Packing:as request

  • Delivery Date: Within 45 days after getting workable deposit

Place of Origin: Henan, China (Mainland)

Shape: Brick

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

Color: Yellow

Size: Customizable

Type: Factory

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 dried

Specification of silica brick :



Brick for roof ,wall of the hot blast stove

Check brick







Apparent Porosity(%)



True Density(g/cm3)



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 strength.

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 resistance-heating environment
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 device.

Packaging & Shipping

Packaging Details:

Fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finaly using straps.
the size of wooden pallet is 95x2375px,95x2500px
or as your requirements.

Delivery Detail:

10-30working days after receiving deposit

Our Services:

1. Your inquiry related to our products or prices will be replied within 24hours.

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 selling period.

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 commitment".

Product Tags:

Yellow Insulating Silica Refractory Bricks


Zero Expansion Silica Refractory Bricks


Heat Resistance Silica Refractory Bricks

Quality Yellow Insulating Silica Refractory Bricks Zero Expansion Heat Resistance for sale

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