High Alumina Bricks

Product DetailBasic InfoFeature:Long Time MaterialsType:Refractory MaterialSpecification:ASTM StandardOrigin:ChinaHS Code:6902200000Product Description HIGH ALUMINA BRICKHigh alumina firebricks are classified according to alumina content ranging from 48% to 90%.ApplicationHigh alumina bricks are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc.FeaturesLow thermal conductivity Excellent acid and base slagging resistanceHigh refractoriness Excellent thermal shock resistanceExcellent mechanical strengthAs for high alumina brick series products, we excel our other high alumina brick suppliers in many aspects, such as:We enjoy the biggest production lines of high alumina brick and largest production capacity.---More than 8000 mts high alumina brick can be supplied per month. We can help you save your time limit for a project. Besides, we provide a small number of high alumina brick used for kinds of furnace maintenance as well.Advanced technology makes it possible for us to have very high qualified rate of high alumina brick.---Our qualified rate of high alumina brick has so far reached over 98%, therefore, our high alumina brick enjoy excellent quality and reasonable price from the point of view.1. SK standard series high alumina brick This index applies to SK series high alumina bricks. SK series high alumina bricks include SK-40 high alumina brick; SK-38 high alumina brick; SK-36 high alumina brick; SK-34 high alumina brick; SK-32 high alumina brick.  high alumina brick Itemhigh alumina brick IndexSK-40SK-38SK-36SK-34SK-32Al2O3, % ≥8065484236Refractoriness oC ≥17901790175017301710Refractoriness under load, (0.6%), oC ≥15301500142013501300App. porosity, %2123232424C. C. S, MPa ≥754939.22520Linear change on reheating, %1400oC × 2h+0.1-0.5+0.2-0.51450oC × 2h+0.1 -0.41500oC × 2h+0.1 -0.4+0.2 -0.42. High Alumina Brick for general uses This index applies to high alumina bricks for general uses. The high alumina bricks for general use are composed of LZ-75 high alumina brick; LZ-65 high alumina brick; LZ-55 high alumina brick; LZ-48 high alumina brick; anchor high alumina brick for reheating furnace. They include LZ-55 high alumina brick; LZ-48 high alumina brick.  high alumina brick Itemhigh alumina brick IndexLZ-75LZ-65LZ-55LZ-48Al2O3, % ≥75655548RefractorinessoC ≥1790179017701750Refractoriness under load, (0.6%), oC ≥1520150014701420Linear change on reheating, (1500oC × 2h)%+0.1-0.4+0.1-0.4+0.1-0.4+0.1-0.4(1450oC )App. porosity, %23232222C. C. S, Mpa ≥544944393. High alumina brick for blast furnace This index applies to high alumina bricks for building the following parts of cylinder of blast furnace. They include GL-65 high alumina brick; GL-55 high alumina brick; GL-48 high alumina brick.  high alumina brick Itemhigh alumina brick IndexGL-65GL-55GL-48Al2O3, % ≤655548Fe2O3, % ≤2Refractoriness CN1800178017600.2MPA refractoriness under load, oC ≥212323Linear Exchange After reheating, %1500oC, 2h0-0.2-1450oC, 2h-0-0.2Apparent porosity, % ≤1918Compressive strength, MPA ≥58.849VentilationHigh alumina brick must be tested and list the actual Measuringdata in the quality certification4. Burned micro hole carbon-high alumina brick for blast furnace Burned micro hole carbon-high alumina brick for blast furnace is divided into: WLT-1 carbon-high alumina brick; WLT-2 carbon-high alumina brick; WLT-3 carbon-high alumina brick.  high alumina brick Itemhigh alumina brick IndexWLT-1WLT-2WLT-3Al2O3, % ≥656055C, % ≥111111Fe, % ≤1.51.51.5Compress strength, MPa ≥706050Bulk density, g/cm3 ≥2.852.652.55Apparent porosity, % ≤161718Molten iron corrosion index, % ≤234Heat conductivity, w/(m. k) (0-800oC ) ≥131313Alkali resistance, % ≤101015Air permeability, um2(mDa) ≤4.94× 10-4 (0.5)1.97× 10-3 (2.0)1.97× 10-3 (2.0)Average aperture, um ≤0.511< 1um hole cubage, % ≥1617181. high alumina-carbon brick, The scope of test for diameter of hole distribution: 0.006um-360um 2. high alumina-carbon brick, The molten iron corrosion index only is used in dry crucible and the bottom.5. Normal high alumina brick for hot blast stove This index applies to normal high alumina brick for building hot blast stove. Normal high alumina bricks for hot blast stove include: RL-65 high alumina brick; RL-55 high alumina brick; RL-48 high alumina brick.  high alumina brick Itemhigh alumina brick IndexRL-65RL-55RL-48Al2O3, % ≥655548Refractoriness oC ≥150014701420Linear change After reheating %1500oC, 2h0.1— -0.4-1450oC, 2h-0.1— -0.4Apparent porosity, % ≤22(24)Compress strength, Mpa ≥504540Thermal shock resistance(1100oC -Cold), % ≥(Roof, wall bricks) 66. Low creep high alumina brick for hot blast stove This index applies to low creep high alumina brick for building hot blast stove. They include: DRL-155 high alumina brick; DRL-150 high alumina brick; DRL-145 high alumina brick; DRL-140 high alumina brick; DRL-135 high alumina brick; DRL-130 high alumina brick; DRL-127 high alumina brick high alumina brick Itemhigh alumina brick IndexDRL-155DRL-150DRL-145DRL-140DRL-135DRL-130DRL-127Al2O3, % ≥75756565656050Apparent porosity, % ≤202122222223Volume, density, g/cm32.65-2.852.65-2.852.50-2.702.40-2.602.35-2.302.30-2.502.30-2.50Compress strength, Mpa ≥60606055555550Creep rate, % (0.2Mpa, 50h) ≤1550oC 0.81500oC 0.81450oC 0.81400oC 0.81350oC 0.81300oC 0.81270oC 0.8Linear Change after reheating %1550oC, 2h0.1— -0.20.1— -0.20.1— -0.21450oC, 2h0.1— -0.20.1— -0.40.1— -0.40.1— -0.4Thermal shock Resistance (1100-Cold),(Roof, wall bricks) Offering data7. High alumina brick for electric arc furnace roofs This index applies to burned and unburned high alumina bricks for electric arc furnace roofs. The burned and unburned high alumina bricks for electric arc furnace roofs are composed of: DL-80 high alumina brick; DL-75 high alumina brick; BDL-80 high alumina brick; BDL-75 high alumina brick.  high alumina brick Itemhigh alumina brick IndexDL-80DL-75BDL-80BDL-75Al2O3, % ≥80758075Refractoriness oC ≥--178017800.2Mpa refractoriness under load, oC ≥1530152015301520Linear change after reheating % 1500oC, 2h0.2— -0.4--Apparent Porosity, %Roof bricks ≤1918Corner of vault ≤2120Compress strength, Mpa ≥75656055Thermal shock resistance(1100oC -Cold) ≥Offering data88. High alumina brick for steel ladle This index applies to high alumina bricks for steel ladle lined with working-level. They include CL-55 high alumina brick; CL-65 high alumina brick; CL-75 high alumina brick; CL-80 high alumina brick; PZCL-78 high alumina brick.  high alumina brick Itemhigh alumina brick IndexCL-55CL-65CL-75CL-80PZCL-78w(SiO2)/% ≥55.065.075.080.078.0w(Fe2O3)/% ≤---2.02.00.2Mpa refractoriness under load, oC ≥14701490151015301550Linear change After reheating %1450oC, 2h0.1-0.5----1500oC, 2h--0.1-0.50.1-0.5--1500oC, 2h---0.1— 0.50.4— 0.3Apparent porosity, % ≤22.028.028.024.021.0Compress strength, Mpa ≥4535405070High alumina brick packinghigh alumina brick are packed on wooden pallet and then polyethylene film is placed over the high alumina brick package, finally the package is tied up with plastic-steel strips.High alumina brick order quantitywe can supply big quantity for whole blast furnace project, hot blast stove project and electric arc furnace. We can also provide a small quantity of high alumina brick used for the above furnace repair.High alumina brick delivery timeMore than 8000 mts high alumina brick can be supplied per month.