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Low Cement Castable
Low Cement Castable for sale in RS Kiln Refractory Company, one kind of refractory cement castable materials, contains 3~8% cement content and performs variety excellent properties of high strength, low porosity, high density, low abrasion, thermal shock resistance and erosion resistance. Low Cement Castable refractory material is mainly used in metallurgy, electricity, petroleum, chemical industry and other silicate kiln.
Low Cement Castable is calcium aluminate cement binding refractory castable and contains less than 2.5% CaO content. Base materials adopt ultrafine powder that have the same or similar chemical component with main material and have cohesive bonding function instead of part or most calcium aluminate cement. This kind of castable refractory belongs to concomitant hydration and cohesive bonding castable.
Castable cement has over 10~30% cement content.
Low cement castable is just content 3~8% cement.
Ultra low cement castable just has 1% cement content.
Non-cement is castable refractory without cement content.
Low Cement Castables contain 3~8% cement content and 1~3% CaO content.
High refractoriness, high temperature strength and slag resistance.
Low porosity & High bulk density.
Low water content.
High strength.
Low linear change rate.
High thermostability.
High alumina low cement castable is developed based on refractory castable bonding clay, which has the varieties of low cement castable, ultra low cement castableb, non-cement or submicron powder and soild binder.
Low cement and ultra low cement castable’s service temperature is higher than the same materials common refractory castable.
Some components of external refining device, ladle cover of external refining ladle, furnace top lining of electric furnace, soaking pit lining of heating furnace, furnace lining of annealing furnace, tundish lining, tapping spout, high temperature nozzle and cover of iron runner and ladle lining.
Low cement castable for sale is used for linings of iron runner for blast furnace, iron notch for iron-melting furnace, pretreatment of hot metal monolithic powder gun.
Clay and high alumina low cement castable can be used for all kinds of thermal treatment furnace of heating furnace and soaking pit and rotary kiln linings.
Mullite low cement catable can be used for linings of high temperature nozzle and water-cooled tube binding lings of heating furnace.
Corundum and Zirconia-corundum low cement castable refractory material can be used for pats’ linings of molten steel furnace refining device.
Main physicochemical indexes of Low Cement Castable
Item/Index
M
A1
A2
Chemical component
65
80
90
Aggregate
Mullite
Corundum
Corundum
Maximum service temperature
1600
1700
1800
Refractorinee
1750
1790
1790
Bulk density
2.6
2.8
3.0
Linear change after sintered
1000℃
-0.2
-0.2
-0.2
1300℃
±0.5
±0.5
±0.5
Pressure strength after sintered
110*24h
30
30
30
1000*3h
50
50
50
1400*3h
70
80
80
Application of Ultrahigh Strength Low cement Castable
Ultrahigh Strength Low cement Castable is used for all kinds of industrial kiln linings and badly service environment position with materials and slag scouring and chemical nature’s erosion.
Steel rolling heating furnace
Furnace wall, furnace top, furnace bottom, burner block, mounting plate, pouring and prefabricate.
Furnace linings
Smelting furnace, blast furnace and its accessory equipment, continuous casting tundish, aluminium cell and aluminum holding furnace.
Chemical equipment linings.
