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1680C Silica Refractory Bricks

China Zhengzhou Annec Industrial Co., Ltd. certification
China Zhengzhou Annec Industrial Co., Ltd. certification
Customer Reviews
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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1680C Silica Refractory Bricks

1680C Silica Refractory Bricks
1680C Silica Refractory Bricks 1680C Silica Refractory Bricks 1680C Silica Refractory Bricks 1680C Silica Refractory Bricks

Large Image :  1680C Silica Refractory Bricks

Product Details:
Place of Origin: China
Brand Name: ANNEC
Certification: ISO, CE
Model Number: YHRS
Payment & Shipping Terms:
Minimum Order Quantity: 200 pcs
Price: usd 1.3-3.5pcs
Packaging Details: formugation pallet conform to exporting packing
Delivery Time: 5-8 working days
Payment Terms: D/P, T/T
Supply Ability: 3000 tons/month

1680C Silica Refractory Bricks

Color: Yellow Refractoriness: ≥1790℃
RUL: ≥1650℃ Creep Rate: ≥1500℃
Bulk Density: ≥1.8g/cm3 Apparent Porosity: ≤23%
Residual Quertz: ≤1.5% CCS: ≥35Mpa
High Light:

1680C Silica Refractory Bricks


1790 Silica Refractory Bricks


1.8g Silica Refractory Bricks

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: XUANKUN

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:

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.


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. Metallurgical industry: the blast furnace, blast furnace hot blast stove, heating furnace, etc.

2. Petrochemical industry: ethylene cracking furnace, hydrogen furnace, a furnace, furnace, etc.

3. Ceramic industry: roller kiln, push board kiln, etc.

4. Industry: glass kiln heat storage room, etc.

5. Carbon industry: carbon calciner, etc

Aluminum electrolytic industry: aluminum electrolytic tank, etc.

Other industries: tunnel kiln, shuttle kiln, etc


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".

1680C Silica Refractory Bricks 01680C Silica Refractory Bricks 11680C Silica Refractory Bricks 21680C Silica Refractory Bricks 3

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)