Cement Refractory Cement/ High Alumina Cement

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Product Description




Corumdum mullite series castable refractory cement for Petrolchemical&Coal Chemical Industry

Corundum mullite series castables features:
1. high refractoriness
2. good chemical stability
3. high strength


1.   The corundum mullite series castables, prepared with tabular alumina, white fused alumina, fused mullite, etc. as starting materials, are characterized by high refractoriness, good chemical stability, high strength, etc.. The castables with Al2O3≥94% are corumdum castables.

2.   The castables are mainly used for on-site casting and off-site precasting for working linings of high temperature refining chemical equipment in chemical and metallurgical industry.


Technical Data

 Item    Corumdum mullite series castable refractory cement for Petrolchemical&Coal Chemical Industry
  Corundum mullite castables Corundum castables
 CastPA72   CastPA88   CastPA94
 Long term service temperature,℃ 1550 1600 1650
 Al2O3,% 72 88 94
 SiO2,% -- -- 0.5
 Fe2O3,% 0.5 0.5 0.3
Bulk density,g/cm3(110℃×24h)  2.5 2.7 2.9
 CCS,MPa (110℃×24h) 50 50 55
 Linear change rate after heating,%  ,(1300℃×3h) ±0.4  ±0.3  ±0.3


Cement Refractory Cement/ High Alumina Cement

Cement Refractory Cement/ High Alumina Cement

Cement Refractory Cement/ High Alumina Cement

Packaging & Shipping



Packaging Details:25kg or 50kg per small bag or as customer's demand
Delivery Detail:After 7 days with stock, 30 days production and inspection




Cement Refractory Cement/ High Alumina Cement


Our Services



♥  Research of application basis, new technical process and new technology, development of new product, and technical consultation.

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

♥  Engineering design, contract and consult for refractories, and civil architecture design.

♥ Research,development, manufacture and sale of superhard materials.

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

♥ Inspection,supervision and arbitration of refractories.

♥ Consultation and services in refractories information.

♥ Training and cultivation of high-level talents in refractories profession.



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Q:What are fire resistant level standards of class A fire resistant door?
Grade standards: class A fire resistant door is an important part of fire-fighting apparatus, and an important step in the social fireproof work. The quality and use of class A fire resistant door is closely related to the success or failure of the fireproof work.. There are steel and wood for class A fire resistant door materials. Only those whose fire endurance is no less than 1.5h can be called class A fire resistant door. In general, the class A fire resistant door internal material is perlite, and still some are vermiculite fireproof board, foam core board, MCcomposite materials, and other fireproofing materials. The thickness of class A fire resistant door is usually 50mm. In places where there is strict requirements for fireproof performance, class A fire resistant door is often installed.
Q:Who know about the knowledge of acid refractory material? Please explain in detail.
Refers to the silicon dioxide
Q:How to divide fire rating of decorating materials ?
Generally speaking, it is divided into Level A: noninflammability; B1: difficult-flammability; B2: combustibility; B3: inflammability.
Q:What kinds of refractory materials that uses a-Al2o3 powder? What are the purpose of it?
04La-Al2O3 powder is a alumina powder whose raw material is industrial aluminum oxide which has been calcined at high temperature. It is a good polishes for ceramics and jade, meanwhile, it is also an important raw material for high-end refractory materials. The technical indicators parameters A1023 mark A1535 chemical composition AL2O3≥ 99.92 3%, ≥ 3.10FE203≤ 0.799 Refractory calcined alumina powder (a-Al2O3) 1.2 true density (g & # 47, by fully ground powder made of different fineness .O.10 0.07 0.04NA2O≤ 0.93a-Al2O3 (%) ≥ 95 95 primary crystallization average grain (um) 2 ~ 3 3 ~ 5 average particle size (um) 40 ~ 602.6SIO2≤ 0.1 0.15B2O3≤ - 0, glass, engineering ceramics typical use electronic ceramic insulating ceramic refractory ceramic wear 3
Q:Which brand of AAA refractory is good?
Foshan Nanhai Yanbu Shuying fire-resistant insulation material is very good, and it is a professional company of the production and sale of refractories. Our company specializes in the production of refractory bricks, refractory bricks, refractory castable, refractory aggregate, refractory materials, bauxite, alumina bricks and to undertake the production of various common refractory bricks and non-sizing bricks. The Zhengzhou Fire High Temperature Materials Co., Ltd. is also a good company. It is a collection of R & D and production company. The company mainly produces refractories, refractory bricks, refractory castable, refractory aggregate, refractory materials, special refractory bricks.
Q:what's the varieties of thermal insulation material with A level fire rating?
the main A level fireproof material is rock wool now (note:it is rock wool not mineral wool). A1 level fireproofing, now the largest producer is Taishi rock wool Co., Ltd.; hope my answer can help you, thank you.
Q:Fefractory of aluminium oxide.
It can be refined into castable refractory and refractory bricks, according to temperature rating. There are shaped refractory material and shapeless refractory material, and ceramic fiber. So it must be specific. There is a large range of refractory, which basically contains the aluminium oxide.
Q:How to deiron refractory?
Deironing refractory can take physical methods into consideration, such as magnetic separation, reselection, etc. And it can also take chemical methods, such as flotation.
Q:Who knows the refractoriness of high temperature lightweight firebricks?
pores of high temperature lightweight refractory bricks is made by lightweight aggregate such as combustibles, foaming agent, and hollow sphere production with better thermodynamic stability. Refractoriness reaching 1200 ℃ or more is first grade refractories. fire resistance of building blocks of 100mm thick can reach 225 minutes, 200mm thick brick 480 minutes.
Q:What is the strength of high strength refractory material?
Refers to constrcuting through ramming, and a refractory materials that is hardened in temperature higher than normal. mixed through a certain grade of refractory aggregate, powder, binder, additives, water or other liquids. Can be classified into high alumina and fireclay, magnesite, dolomite, zirconium and silicon carbide by the standard of texture.

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