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Zhengzhou Dengda Electric melting charging Co., Ltd
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High alumina refractory brick

Zhengzhou Dengda Electric melting charging Co., Ltd
Zhengzhou Dengda Electric melting charging Co., Ltd
City: Zhengzhou
Province/State: Henan
Tel: 86-371-55950822
Contact Person:
Chaoyang Wei

High alumina refractory brick

Place of Origin : China
Model Number : High alumina refractory brick
Certification : ISO
Packaging Details : Pallet
Delivery Time : 20 days
Payment Terms : T/T , L/C at sight
Supply Ability : 2000 mt/month
MOQ : 25MT
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High alumina firebricks are classified according to the alumina content which is from lowest 48% to highest 95%, manufactured from mineral of bauxite, corundum, etc. by mixing, press-forming, drying, sintering and machining. High alumina bricks feature stable mechanical strength and thermal shock resistance, with high refractoriness of no lower than 1880℃, High alumina bricks are commonly used as refractory lining exposed to heat directly or backup insulation linings in various types of industrial kiln or laboratory furnace.


Item

LZ-75

LZ-65

LZ-55

LZ-48

Al2O3 %

≥75

≥65

≥55

≥48

Cold crushing strength ,MPa

≥54

≥49

≥44

≥40

Apparent porosity ,%

≤23

≤23

≤22

≤22

Refractoriness under load , °C

≥1520

≥1500

≥1470

≥1420

Reheating linear change (1500°C,2h) %

+0.1-0.4

+0.1-0.4

+0.1-0.4

(1450°C,2h)+0.1-0.4

Refractoriness °C

>1790

>1790

>1770

>1750


Product Tags:

Refractory Brick

      

Firebricks

      

High alumina refractory brick

      
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