Refractory Heat Insulation Brick

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China main port
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Min Order Qty:
2 m.t
Supply Capability:
2000 m.t/month

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Product Description:

Insulating Brick

CMAX insulating firebricks are classified under temperature between 1300℃ to 1700℃, manufactured from high purity alumina clay.

1.High Alumina Brick used for cement kiln, otary kiln and other high temperature kiln.

2,Magnesia Carbon Brick used for converter furnace,ladle and electric furnace.

3,Insulating Bricks used for insualting layer for high temperature furnce

4,Nozzle Bricks slide gate brick that can be used for tundish and ladle

Refractory Heat Insulation Brick

Insulating Brick Features

1.Low thermal conductivity, low thermal capacity, low impurity content

2.High strength

3.Good thermal shock resistance, Corrosion atmosphere resistance

4.High dimensional accuracy

5.Low reheat shrinkage

Insulating Brick Application

glass industries iron & steel industries
ceramics industries non-ferrous metals industries
electrolytic Aluminum industries power generation industries
Heat surface fireproof lining other fire-proof back lining

Process Of Refractory Heat Insulation BrickRaw material to factory→checkout→burdening→stirring→mixing→taking out the raw material

→transfer→enter into mould→press machine extrusion→going out the mould→stoving→going into the furnace

→firing→stopping burn→cooling→open the furnace door→going out the furnace→checkout

→packing→qualified product→putting in storage→sale

Insulating Brick Data Sheet

Classification Temperature (℉/℃)


Bulk Density (g/cm3 )


Thermal Conductivity

800℃, W/m.K


1000℃, W/m.K


1200℃, W/m.K


Reheating Linear Change (%)



Chemical Composition (%)





Packaging & Shipping

Packaging Details:Be packed in fumigated wooden pallets

Delivery Detail: 30 days after order

Refractory Heat Insulation Brick

Our Services

Optimum solution and product supply of refractories for high temperature industries, such as iron steel, non-ferrous, petrochemical and building materials.

  • Ÿ   Engineering design, contract and consult for refractories, and civil architecture design.

  • Ÿ   Research, development, manufacture and sale of superhard materials.

  • Ÿ   R&D, manufacture and sale of special packing materials for export.

  • Ÿ   Inspection, supervision and arbitration of refractories.

  • Ÿ   Consultation and services in refractories  information.

  • Ÿ   Training and cultivation of high-level talents in refractories profession

Sales Network

Refractory Heat Insulation Brick

Company Information

CNBM (China National Building Material) Group is the largest comprehensive building materials group in China that in integrate scientific research, manufacturing and logistics into one entity. The largest building materials and equipment specialists in China. Upon State Council approval, today CNBM owned more than 300 subordinate manufacturing factories and servicing companies. There are 6 fully owned public listed companies and 11 partially owned with substantial shares public listed companies. In many of these fields, CNBM is playing the leading role in the building industry in the country.

Refractory Heat Insulation Brick

Refractory Heat Insulation Brick


1. Which products do you have?

We have all kinds of refractory brick, castable, mortar, cement, ceramic fiber products, etc.
Or you could browse our products to choose what you need.

2. Can you give me a brief introduction of the application of your products?

We are mainly specializing in the refractory materials in iron and steel, cement, glass, ceramics, petrochemical, electric power Industry, etc.
3. If I need your offer, what information do you need?

In order to choose suitable products, it will be appreciated to provide us the information, such us specification, technical data, order quantity, products application etc. If any question, please contact us freely.

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Q:Are there any construction waste materials for composite thermal insulation bricks?
The strength products are made of high quality tabular corundum and mullite as aggregate, silicon carbide as matrix, additional special additive and a small amount of rare earth oxide to be mixed, and then formed by high pressure molding and high temperature sintering.
Q:Are there any special requirements for the use of raw materials in thermal insulation brick production equipment? What about the raw materials?
Pulping, pouring system, but if you want to invest in you know more about this knowledge, according to your production decision, cutting system and steam curing system, mainly for operators, grinding, grinding system, production control system uses two typical control methods.
Q:There are several construction techniques for exterior wall insulation
Exterior wall sandwich insulation technologyThe exterior wall sandwich insulation is to place the heat preservation material between the inner and outer wall sheets of the outer wall, and the inner and outer walls can be made of concrete hollow blocks.Advantage:1) to the inner wall piece and the heat preservation material forms the effective protection, to the heat preservation material selection material request is not high (source: Chinese heat preservation net), polystyrene, glass cotton and urea aldehyde field casting material and so on may use;2) the construction season and construction conditions are not very high, and it does not affect the winter construction. In Heilongjiang, Inner Mongolia, northern Gansu and other cold areas have been given some applications.Shortcoming:1) in non cold areas, this kind of wall is thicker than traditional wall;2) the inner and the outer wall pieces need to be connected by connecting pieces, and the structure is more complicated than the traditional wall;3) periphery structure of "bridge" more. In the earthquake zone, building circle beam and constructional column settings, "bridge" more efficiency of thermal insulation materials is still not fully play.4) outside the walls by the outdoor climate, the temperature difference between day and night and the large temperature difference between summer and winter, easy to cause the wall cracking and leakage of rainwater.
Q:What kind of material is clay insulation refractory brick made of?
Alumina silicate refractories with a content of 30% ~ 46% are called clayey refractories. Clay products are mainly made of mullite, glass phase, square quartz and quartz.
Q:Which kind of balcony heat preservation material is better?
New inorganic insulation material, this material thickness is thin, in 2-3 centimeters line, direct smear on the top of the house, without auxiliary materials, the price is higher than rock wool, aluminum silicate cotton.
Q:What is the difference between the production line of foamed cement insulation bricks and the self thermal insulation block production line?
Yes, this year's business is not very good to do, customers pay more attention to the quality of products, seven industrial equipment, very satisfied with the service OK
Q:Material and making method of light insulating brick
The strength products are made of high quality tabular corundum and mullite as aggregate, silicon carbide as matrix, additional special additive and a small amount of rare earth oxide to be mixed, and then formed by high pressure molding and high temperature sintering.
Q:Masonry method for boiler refractory brick
Masonry of furnace bottom:(1) the bottom shall be leveled before masonry; when the masonry is made, the walls around the bottom shall be first laid, and the height shall be approximately higher than the surface of the hearth. Then the bottom horizontal line (for example, multi layer masonry, together with the layer line) is marked on the straight wall, and then the bottom can be built.(2) when the bottom is made of multi layer bricks, the masonry shall be carried out by layer by layer, and the upper, lower and the same floor shall be staggered. The long side of the surface brick shall be vertical to the direction of the flow of slag or gas.(3) the high temperature area and the furnace bottom which need to be frequently repaired must leave the expansion gap at the bottom of the furnace and the straight wall, and the asbestos rope or asbestos board will be embedded in the gap.
Q:What are insulation bricks for? Do not use high-rise buildings on the ah?
Heat preservation and heat insulation, that depends on the design of the drawing
Q:Refractory bricks, burner bricks, insulation bricks? Is it a kind of thing?
Not the same thing, refractory bricks and insulation bricks of raw materials, the proportion is not the same. This is the chain of various types of products

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