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Zhengzhou Huaxin Refractory Material Industry Co., Ltd.

Add: Railway Station, Chaohua, Xinmi City, Henan, China, 452385

Tel:86-371-69231111   Fax:86-371-69235777

Web: http://en.hxnc.cn   E-Mail: huaxin@hxnc.cn

Your present location:Home >> Alumina Products >> Chrome Brick
  • Name: Chrome Brick
  • Number: 76
  • Time: 2010-07-26
  • Views : 125

immediate inquiry

Our chrome corundum brick takes corundum and electric melting chromic oxide as main raw materials and micro power as additive and goes through the process of mixing, molding, drying and burning in high temperature shuttle type kiln, featuring wear resistance, thermal impact resistance and acid/alkali corrosion resistance. The high chrome brick (Cr2O3 ≥90%) is mainly applied in key parts of kilns, alkali-free glass fiber kilns and garbage incinerators in coal chemical industry and chemical industry. The chrome corundum brick is mainly applied as the lining of carbon black furnaces and copper smelting furnaces, the smelting pools of glass furnaces and the slipway and tapping platform of steel rolling heating furnaces.

Item High Cr2O3 Middle chrome Chrome-Corundum Chrome-Corundum Chrome-Corundnm
Cr2O3  % ≥93 ≥86 ≥60 ≥30 ≥12
Al2O3   % ≤38 ≤68 ≤80
Fe2O3  % ≤0.2 ≤0.2 ≤0.5
Apparent porosity   % ≤17 ≤17 ≤14 ≤16 ≤18
Bulk density g/cm3 ≥4.3 ≥4.2 ≥3.63 ≥3.53 ≥3.3
Cold crushing strength MPa ≥100 ≥100 ≥130 ≥130 ≥120
Refractoriness under load ℃  ≥1680  ≥1670  ≥1700  ≥1700  ≥1700
(0.2MPa,0.6%)
Reheating linear change rate   %  ±0.2  ±0.2  ±0.2  ±0.2  ±0.2
(1600℃×3h)

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