Magnesite chrome brick

Product group
Refractory Bricks & Raw Materials
Origin
China

Zhengzhou Huachen Refractory Co., Ltd.

China
Zhengzhou Huachen Refractory Co., Ltd.

Supplier info

Business type
Manufacturer
Year established
2003
Location
China
Exports to
Worldwide

Magnesite chrome brick use magnesium oxide (MgO) and chromium oxide (Cr2O3) as main ingredient,periclase and spinel as main mineral components of refractory brick.
a.Common Magnesite chrome brick is made by sintered magnesite and refractory level chrome ore as raw materials. The space between refractory grains is bonded with silicate.
b.Direct-bonded Magnesite chrome brick is made by chrome ore with low content of impurities and pure magnesite,firing at the temperature above 1700°C.

c.Semi-rebonded and Fuse-rebonded magnesite chrome brick are made by fused magnesite chrome sinter.

Commom Magnesite chrome brick

Chemical composition and technical performance Product brand
SRMG-8 SRMG-12 SRMG-15 SRMG-18
MgO(%) ≥65 ≥60 ≥55 ≥52
Cr 2 O 3 (%) ≥8 ≥12 ≥15 ≥18
SiO 2 (%) ≤1.5 ≤1.5 ≤1.8 ≤1.8
Apparent porosity(%) ≤18 ≤18 ≤18 ≤18
Cold crushing strength(MPa) ≥40 ≥40 ≥40 ≥40
0.2MPa refractoriness under load T0.6( o C) ≥1670 ≥1670 ≥1670 ≥1670
Thermal shock resistance ( 1300 o C air cooling) ( 1100 o C water cooling) ≥30 ≥6 ≥30 ≥6 ≥30 ≥6

Fused Magnesite chrome Brick

Chemical composition and technical performance Product brand
ERMG-12 ERMG-16 ERMG-20
MgO(%) ≥60 ≥55 ≥50
Cr 2 O 3 (%) ≥12 ≥16 ≥20
SiO 2 (%) ≤1.5 ≤1.8 ≤2.0
Apparent porosity(%) ≤16 ≤16 ≤16
Cold crushing strength(MPa) ≥40 ≥40 ≥40
0.2MPa refractoriness under load T0.6( o C) ≥1700 ≥1700 ≥1700
Thermal shock resistance ( 1300 o C air cooling) ( 1100 o C water cooling) ≥15 ≥4 ≥15 ≥4 ≥15 ≥4

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