Corundum products

Corundum products

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Corundum products

  • Detail
  • Parameters

Corundum products are made from hight purityfused white corundum, mullite, chromium oxide, and other raw materials, throughhigh-pressure dynamic forming and ultra-high temperature sintering. Thisproduct has high temperature resistance, high strength, acid and alkalicorrosion resistance, is not affected by reducing gases such as H2 and CO, andhas excellent characteristics such as good insulation at high temperatures andlow dielectric constant.   


Used for ironmaking blastfurnaces, steel refining furnaces, and glass melting furnaces; And gasifiers,ethylene gasifiers, and ammonia decomposition furnaces in industries such aspetrochemicals; Carbon black furnaces in the chemical industry and crackingfurnaces in the fertilizer industry; High temperature kilns for refractorymaterials and ceramic industries.



index     name


DL-98


DL-95


DL-90

Al2O3%≥

98.5

95

90

Cr2O3%≥

——

——

——

SiO2%≤

0.3

3.0

9.0

Fe2O3%≤

0.2

0.3

0.5

R2O%≤

0.3

0.6

0.6

体积密度

Bulk Density

g/cm3≥

3.0-3.2

2.9

2.9

常温耐压强度

Clod crushing strength

MPa≥

75

100

100

耐火度

Refractoriness℃≥

1790

1790

1790

荷重软化点

Refractoriness under load

℃0.2MPa≥

1700

1700

1700

重烧线变化

Permanent linear change

%1600×3h≤

0.2

0.2

0.2

热稳定性

Thermal stability

次1100℃水冷≥

6

10

10



Spec
Conforms to the international standard
Color
White
Brand
ShenLong Refractory Material Co., Ltd