- Place of Origin:CN;SHN
- Shape:Brick
- Material:Alumina Block
- Refractoriness (Degree):Common (1580°< Refractoriness< 1770°)
- SiO2 Content (%):0
- Al2O3 Content (%):48%
- MgO Content (%):0.8-1.2
- CaO Content (%):0.34%
- CrO Content (%):0.1~0.3%
- SiC Content (%):1.2-1.4
- Model Number:B
- Brand Name:DKJL
High Temperature Refractory B1 Thermal Insulation Mullite Bricks for Kiln
B series thermal insulating bricks are made from high purity raw material according to different brick type to meet different requirement. They are idael thermal insulation material usually used in industrial furnaces and heating pipe.
Our thermal insulating bricks are in accordance with JIS Industrial Standard of JAPAN, have excellent properties as light weight,low ferrous,low shrinkage, atmosphere erosion resistant and so on.
Insulation brick Features and advantages:
1.light weight
2.low density
3.high strength,good thermal shock resistance
4. Low heat storage, low thermal conductivity
5.saving energy
6.Precise size
7.good thermal insulation effect
8.good quality and low price
Insulation brick Application:
It is widely used as a primary hot face refractory lining or as back-up insulation behind other refractories in furnace(such as carbon furnace,cracking furnace,heating furnace for oil refining,roller kiln, tunnel kiln.),flues, flues,refining vessels, heaters,regenerators and similar high temperature industrial equipment.
Insulation brick technical Index:
Items | Testing Temperature(°C) When reheated with 2% contracting rate | Volume Density g/cm3 | Compression Strength Mpa | Thermal Conductivity kcal/mh°C (350°C) |
B | B-1 | 900 | ≤0.70 | ≥2.50 | ≤0.17 |
B-2 | 1000 | ≤0.70 | ≥2.50 | ≤0.18 |
B-3 | 1100 | ≤0.75 | ≥2.50 | ≤0.20 |
B-4 | 1200 | ≤0.80 | ≥2.50 | ≤0.22 |
B-5 | 1300 | ≤0.80 | ≥2.50 | ≤0.23 |
B-6 | 1400 | ≤0.90 | ≥3.00 | ≤0.27 |
B-7 | 1500 | ≤1.00 | ≥3.00 | ≤0.31 |
Insulation brick Common sizes:
Straight type | Arch type | Wedge type |
L×W×H (mm) 230×114×65 230×114×75 230×114×32 220×110×60 220×110×50 220×110×40 220×110×30 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 230×114×65/59 220×110×65/50 220×110×75/65 220×110×60/40 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 220×110×75/65 220×110×60/40 |
Other sizes according to customer requirements |
Picture of insulation bricks

Packing of insulation brick: Standard export wooden pallet with PET strap fixed,
paper or non-woven fabrics between layers,finally wrapped with plastic shrink film from outside.
Shipping of insulation brick: By vessel or plane from any Chinese port

Packing pictures of insulation brick

1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
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 and scientific instruments. 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.

Q1.How can I get your prompt quotation of insulation brick ?
We can give our offer quickly if you kindly send the inquiry with following factors of the insulation bricks: drawing, dimension (length*width*thickness), service temperature, application and quantity.
We’d be appreciated if you can also provide the density and AL2O3 content of the brick.
Q2. What is the MOQ (minimum order quantity)?
1 pallet.
Q3.What is the HS code?
The HS code is 69022000
Q4. Is there any cost for the sample?
We provide free sample but don't bear the freight
Q5. How can I contact you?

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