Refractory Castable

Castable is a kind of refractory aggregate, powder, binder and admixture according to a certain proportion of preparation, adding water or other liquid mixing, using casting, vibration and other methods of construction of amorphous refractory material.

Convenient construction, good integrity, strong adaptability, short production cycle,

Widely used in metallurgy, building materials, electric power, chemical and other industries of kiln, boiler, heat exchanger and other thermal equipment lining. Such as the iron ditch of the blast furnace, the lining of the steel converter, the transition zone of the cement rotary kiln and other parts.

Steel Fiber Reinforced High Alumina Castable

ItemSteel fiber reinforced high alumina castables
 LX-FH85LX-FH75
  Chemical composition  ( % )AlO₂8070
Bulk Density  (g/cm³) 2.802.60
Cold crushing strength  (MPa)≥110℃×24h8580
 1100℃×3h8580
(MPa)2Cold modules of rupture110℃×24h1512
 1100℃×3h1512
Permanent linear change  (%)1100℃×3h±0.4±0.5
Water addition  (%)5.5-6.56.5-7.5
Application Outlet,burner,kiln hood,cooler

Alumina Chrome Castable

Features:

Selection of high-quality magnesia and chrome ore, raw materials and high-quality binders, additives, high   temperature, good fluidity, heat shock stability.

Application:

Industrial furnaces for iron and steel, nonferrous metal smelting furnace, chemical and other industrial furnaces.

Item     LXLGe-1LXLGe-2LXLGe-3LXLGe-4LXLGe-5LXLGe-6
Al₂O₃ (%)     ≥808283858690
CaO(%)     ≤2.52.52.52.5//
Cr₂O₃ (%)≥10103553
Bulk Density  (g/cm³)≥110℃×24h3.003.003.003.003.003.05
1500℃×3h2.902.952.952.952.953.00
Modules of Rupture  (MPa)≥110℃×24h88991013
1500℃×3h141415161718
 Permanent linear change  (1500℃×3h,%)0~+0.50~+0.50~+0.50~+0.50~+0.5-0.1~+0.5
Max.working temperature  (℃)170017001700170017001750
Amount of water  (%)5-75-75-65-65-6/

Chrome Corundum Castable

Chromium corundum refractory castable is a castable refractory material with AL2O3 and Cr2O3 as the main components. It is a neutral refractory castable. It is composed of coarse aggregate, fine aggregate, and powder in a certain proportion, and a certain amount of binder and additives are added. The material is suitable for pouring construction and molding. During construction, add binder, coagulant and appropriate amount of water, and stir and mix to make a castable with good fluidity. When used, the ratio of coarse, medium and fine aggregates and powders to the binding agent can be adjusted as needed. The binding agents used are pure calcium aluminate cement and phosphoric acid (or aluminum dihydrogen phosphate).

Features:     

Chrome corundum refractory castable has the characteristics of erosion resistance, corrosion resistance, high load softening temperature (1700℃), easy construction, good masonry density and low cost. 

Application:   

 It can be used in metallurgy, petroleum, chemical industry, building materials, machinery and other industries. Kilns and thermal equipment.

ItemsCrG1CrG2
Al2O3 Cr2O3 ≥9289
Bulk Density g/cm3  ≥110℃ x 24h3.13.0
Module of Rupture Mpa  ≥110℃ x 24h77
Cold Crushing Strength Mpa  ≥1550℃ x 3h1212
110℃ x 24h4040
Reheating Linear Change %  ≤1550℃ x 3h100100
1550℃ x 3h+_0.5+_0.5

Corundum Mullite Castable

Feature:

Corundum  mullite  castable  is  made  from  high  quality  corundum  and  mullite  with  micro-powder  and  additive, The  advantage of Corundum mullite castable is good thermal shock resistance, low creep rate, low expansion and good performance of chemical attack resistance.

Application:

widely  used  for outlet, burner lance, kiln  hood and tertiary air duct and grate cooler of cement  rotary kilns.

Item Corundum Mullite castable
LX-18SLX-80MCLX-70MC
Chemical composition (%)≥Al₂O₃+SiC908070
Bulk density  (g/cm³)110℃×24h3.002.902.75
Cold crushing strength (MPa)110℃×24h11010090
1100℃×3h120110100
Cold modules of rupture  (MPa)≥110℃×24151210
1100℃×3h181412
Permanent linear change1100℃×3h±0.3±0.3±0.3
1500℃x3h±0.5≠0±05
Maximum Service temp (℃)≥17001600550
  Water addition  (%)4.5-5.55.0-5.55.5-6.5
Use partKiln mouth coal injection pipe 

Corundum Spinel and Corundum Castable

Features:

Selection of high quality raw materials and high-quality high-grade synthetic binders,additives, use of high temperature, fluidity, Thermal shock stability, strong resistance  to  slag erosion.

Application:

for RH, VOD, AOD, LF Refining furnace and  other iron and steel, nonferrous metallurgical smelter.

Item                    Corundum-spinel castablesCorundum castable
Al₂O₃ (%)      ≥8090
MgO(%)        ≥8/
Bulk Density  (g/cm³)   ≥2.92.9

Cold crushing strength  (MPa)≥

110℃×24h3060
1600℃×3h6070

Modules of Rupture  (MPa)≥

110℃×24h56
1500℃×3h710
Permanent linear change  (1500℃,%)0~+1.0±0.5
Working Temperature  (℃)17001700

Corrosion-resistant corundum silicon-carbide castable

Features:

Selection of high quality raw materials and high-quality binders, additives, use  of  high  temperature, fluidity, heat  shock  Good  stability  and corrosion  resistance. 

Application:

For iron and steel, nonferrous  metals, electric power, chemical  and other industrial furnaces.

Item                                    
Maximum temperature  (℃)1500
Linear change after firing  (1400℃×3h,%)-0.3~+0.2
Cold crushing strength  (MPa)  ≥110℃×24h100
1300℃×3h120
Cold Crushing Strength  (cm³)   ≤7
  Thermal shock resistance(700 ℃,water cooling)times  ≥35
SiC(%)≥85
Bulk Density  (g/cm³)  ≥2.7

What is the Price of Castable Price?

The main factors affecting the price include: quantity and type. Castables are key components for building kilns. Lianxin team will provide different pricing plans according to the different needs of customers. The price of castable varies depending on the quantity and model selected. Customers who order large quantities of the same model can enjoy greater discounts.

lianxin company

About Lianxin:

The company has more than 20 patented technologies, more than 20 corporate honors, and international certifications such as ISO. With an annual output of 300,000 tons, the company is a leader in China’s refractory industry. As a manufacturer, we will provide you with factory direct prices. With more than 20 years of experience and a team of more than 200 professionals, we are committed to helping you find a solution that suits your needs.

      Why Choose Us? 

  • About delivery time: Standard size bricks can be delivered immediately.
  • Regarding customized castables, we have rich experience, short production cycle and fast delivery time.
  • In addition, we can also provide kiln material solutions and a series of technical guidance for construction according to the specific needs of customers.
  • Lianxin castables are your solution!
  • With over 20 years of experience and a team of over 200 professionals, we are committed to helping you find the solution that’s right for you.
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