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Eco Friendly Quartzite Silica Insulating Brick For Furnace

China Zhengzhou Annec Industrial Co., Ltd. certification
China Zhengzhou Annec Industrial Co., Ltd. certification
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good job and nice quality! Hope our next business

—— Carsten Schmickler

very nice company.waiting for my next visit

—— Neetu Arora

good quality, but price is higher than other supplier.

—— Bipin Vagal

thank you for your products and service. During the project, the staff from your company cooperated with our side perfectly. The goods are all follow our order. The after-sale service also good.


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Eco Friendly Quartzite Silica Insulating Brick For Furnace

Eco Friendly Quartzite Silica Insulating Brick For Furnace
Eco Friendly Quartzite Silica Insulating Brick For Furnace Eco Friendly Quartzite Silica Insulating Brick For Furnace Eco Friendly Quartzite Silica Insulating Brick For Furnace

Large Image :  Eco Friendly Quartzite Silica Insulating Brick For Furnace

Product Details:
Place of Origin: China
Brand Name: Annec
Model Number: GGR-1.2
Payment & Shipping Terms:
Minimum Order Quantity: 5 Tons
Price: 400-2100 USD/T
Packaging Details: 12-24 pallets for one 20 GP container
Delivery Time: 50-120 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1500 Tons/ per month

Eco Friendly Quartzite Silica Insulating Brick For Furnace

Bulk Density: ≤1.2 G/cm3 Cold Crushing Strength: ≥5 MPa
Linear Change On Reheating,(5h,≤0.5 %): ≥1550 ℃ Thermal Conductivity(350±25)℃: ≤0.70 W/m·K
Characteristic 1: Light Weight Characteristic 2: High Refractoriness Under Load
SiO2: ≥91 % Refractoriness Under Load 0.1MPa: ≥1520
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Eco Friendly Quartzite Silica Insulating Brick For Furnace




    Insulating Silica Fire Brick generally use crystalline quartzite or silica sand as raw materials, and the mineral composition is: phosphorite 78% to 86%, cristobalite 13% to 15%, and quartz 4% to 7%. Add combustible materials to the ingredients, such as coke, sawdust, anthracite, carbonized rice husk, or use gas foaming to form a porous structure. Insulating silica brick Price are heat-insulating silicon refractory products with a SiO2 content of more than 90% and a bulk density of less than 1.2. The refractoriness and softening temperature under load are not much different from ordinary silica bricks with the same composition. However, due to the many pores, the compressive strength, slag resistance, and corrosion resistance are not as good as ordinary silica bricks, but the thermal shock resistance has been improved. It is similar to the production process of ordinary silica bricks. Some mineralizers (CaO, Fe2O3) are added to the ingredients to promote the conversion of quartz, and pulp waste liquid is used as a binder to make the bricks have a certain strength. When using coke or anthracite as combustible additives, because the ash will be brought into Fe2O3 and Al2O3, there is no need to add iron scales in the ingredients. When the siliceous Insulating silica bricks are fired, a strong oxidizing flame should be maintained before 1200°C to make the additions burn out completely.




Lower impurity content

Excellent resistance in slag abrasion

No shrink in burn repeatedly

Super higher cold crush strength character

Good performance in high temp refractoriness under load

Higher temperate resistant with good refractoriness




   Insulating Silica Fire Brick​​ are used in the blast furnace blast area and communicate with the blast furnace exhaust. The light silicon bricks have a temperature range of 1000 ~ 1300 ℃. Can meet the whole cycle life of hot blast stove

    Insulating Silica Fire Brick are also used in the partition walls of the carbonization and combustion chambers of coke ovens, the regenerators and slag chambers of open hearth furnaces, soaking furnaces, glass melting furnaces, refractory materials and ceramic firing kilns. There are also vaults and other load-bearing parts for kilns. It is also used for the high-temperature load-bearing part of hot blast stove and the top of acidic open hearth furnace.


Product Description:


Insulating Silica Fire Brick
Item GGR-1.2
SiO2 % ≥91
Bulk Density ( g/cm3) ≤1.2
Cold Crushing Strength (MPa) ≥5
Linear Change on Reheating(%) 1550℃, 2h ≤0.5
Refractoriness Under Load
0.1MPa, ℃
Thermal conductivity(350±25)℃ (W/mK) ≤0.70


Why choose us

Q: Are you trading company or manufacturer?

A: We are Manufacturer of refractory materials that have 4 plants in China; So we can provide you with high quality products at more competitive prices. we can provide you professional solutions about your problems. Although our salesman cannot reply you immediately, pls leave your email or phone number, we can let our technician directly help you ASAP.


Q: Do you accept OEM?

A: Sure, we can do OEM for much kind of brick.


Q: What information do we need to provide?

A: If you are clear about the products you purchased, please send us the brick drawings, index(include chemical and physical indicators )and order quantity.

If you are not familiar with it, please tell us the usage and working temperature, we will recommend the product to you.


Q: What is the Warranty for the fire brick?

A: For all the brick, we have 1 years warranty. If any quality problems on our side occurred in this period, we will take on the shipping cost and replacement.


Contact Details
Zhengzhou Annec Industrial Co., Ltd.

Contact Person: Mrs. LI

Tel: 0086-18538075889

Fax: 86-0371-69938888

Send your inquiry directly to us (0 / 3000)