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Corundum Refractory Castable

Corundum castable as a kind of hot sales refractory castable for furnace application in Rongsheng factory manufacturing with the lining materials for various kiln such as boiler, blast furnace hot blast stove, heating furnace, ceramic kiln. Corundum refractory castable have good properties of high strength, good high temperature performance, stable volume, low thermal conductivity, strong resistance to slag penetration, erosion resistance, convenient construction, strong furnace structure. There are high quality refractory castable corundum for sale cheap in RongSheng refractory bricks company can provide refractory castable specification and category as well as competitive price & high grade quality corundum castable refractory products, other specification according to customer requirements,welcome to contact us or email us for free quote or price list.

Corundum Refractory Castable Definition

The corundum product package is rich in corundum castables, corundum can be plastic, corundum ramming material, corundum wear resistant material, corundum products use Al2O3 content greater than 90%, corundum-based refractory products with appropriate dispersant , coagulant, stainless steel fiber, compounded according to strict formula.

Corundum Refractory Castable Features

Corundum refractory castable have good sealing
Corundum refractory castable have wear resistance
Corundum refractory castable have corrosion resistance
Corundum refractory castable have high heat conductivity
Corundum refractory castable have thermal shock resistance
Corundum refractory castable have high temperature strength

Corundum Refractory Castable Specification

Item   JJG-16 JJG-17 JJG-18
AL2O3(%)   85 90 93
Sio2(%)   10 6 2
Bulk Density(g/cm3)   2.9 3.0 3.0

Cold Crushing Strength(Mpa)

C.C.S Mpa

110℃*24h 80 100 80
1100℃*3h 80 100 80
1500℃*3h 80 100 80

Cold Pressed Antisegregation Strength(Mpa)


110℃*24h 8 12 8
1100℃*3h 8 12 8
1500℃*3h 8 15 8
Hot after-line rate of change(%) 1100℃*3h -0.1~-0.3 -0.1~-0.3 +-0.2
Max Service temp(℃) 1650 -0.1~-0.5 -0.2~-0.6 +-0.5
Construction methods   Vibration Vibration Vibration
Reference water volume(%)   5~6 5.5~6.5 5.5~6.5

Corundum Refractory Castable Application

1.Corundum refractory castable is suitable for the high abrasion resistance, erosion resistance and tortoise mesh of the refinery catalytic cracking equipment, cyclone separator and inclined tube device. The processing equipment such as synthetic ammonia is used for one stage and two stage reforming furnace lining pouring.
2.Corundum castable refractory material mainly used for the parts of the circulating fluidized bed boiler combustion chamber, separator and flue.
Corundum castable refractory is used for heating furnace hearth, tapping tank and cement rotary kiln kiln mouth.

Corundum Refractory Castable Instructions

1.Corundum Castable Refractory Stirring
Stirring is carried out by a forced mixer. Each bag is an integral unit. It can be stirred in multiple bags according to the actual dosage. The construction temperature is 5 ℃-35 ℃. When the temperature is low or high, the heating or cooling measures must be adopted to meet the construction temperature requirements.

2.Corundum Castable Refractory Stirring Method
firstly put the refractory aggregate and the binder into the forced mixer, dry the dry material for 2 minutes, make the color of the material uniform, and then add water for 3-5 minutes until the material color is uniform. The agitated material can be agglomerated by hand but not leaking.

3.Corundum Castable Refractory Add Water
6-8% of the weight of refractory castable materials, can be properly floated according to weather conditions, water must be clean drinking water. Refractory corundum castables must be completed within 30 minutes after mixing with water. is strictly forbidden to return material and stir mixing construction and secondary water mixing.

4.Corundum Castable Refractory Vibrating
Corundum castables should be cast by insert vibrator or flat vibrator. The casting height of each layer shall not exceed 400mm. The vibration of each layer may cause the surface to be slurry. In one part, Corundum castable refractory material shall not vibrate for a long time to prevent the material particles from being graded or the template being displaced. Corundum castable refractory material must be vibrated by vibrator during construction, manual vibrating construction is not allowed.
The pouring material should be continuously carried out during construction. Before the initial pouring of the previous layer, the next layer of castable should be poured. If the construction gap exceeds its initial setting period, Corundum castables should be treated according to the construction joint requirements.

5.Refractory Castables Maintenance and Demoulding
After the pouring, natural curing can be demoulded after 24 hours. After the corundum castable is poured, Corundum refractory castables can be naturally cured. Castable refractory corundum can not be watered during curing, and the curing temperature is 5 ℃ – 35 ℃. After curing for 72 hours after demolding, castable corundum refractory can be baked according to the heating curve.

Corundum Refractory Castable Supplier in Rongsheng Firebricks Factory

Rongsheng refractory manufacturer has 20 years of quality assurance, bringing maximum benefits to customers.
Rongsheng refractory castables manufacturer has four advantages
1.Rongsheng refractory bricks manufacture have strong production capacity, supply is guaranteed.
2.Rongsheng refractory bricks company has professional refractory brick production plants and amorphous refractory production plants.
3.Rongsheng refractory bricks manufacture Have advanced concepts and scientific management. Rongsheng Refractory is constantly committed to quality management, process management and cost management, strives for internal strength, adheres to the development of science and technology, wins by quality and reputation, provides technical guidance services to provide customers with quality products and services.
4.Rongsheng refractory bricks manufacture have perfect after-sales service system
From raw material procurement to final product inspection and after-sales service. Ensure that the product offered to the user is 100% qualified.

Why to Choose the Rongsheng Firebricks Factory

Rongsheng refractory bricks factory direct sales, reasonable price, provide customized services, welcome to consult. Rongsheng refractory castable manufacturer adhering to: quality first, reputation first, customer first. Scientific management, strong technical force, perfect testing methods, advanced technology and equipment, stable product quality are the guarantee of quality service.


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