high alumina fire refractory brick high resistance for hot blast oven

Place of Origin:

Henan, China

Shape:

Brick

Material:

Alumina Block

SiO2 Content (%):

20%

Al2O3 Content (%):

75%

MgO Content (%):

0.1

CaO Content (%):

0.2

Refractoriness (Degree):

1770°< Refractoriness< 2000°

CrO Content (%):

0.3

SiC Content (%):

0.4

Model Number:

high alumina brick

Brand Name:

Lite

HS code:

69022000

Size:

230*114*65,230*114*75

Fe2O3 %:

≤2

Refractoriness °C:

≥1790

Apparent porosity %:

≤21

Cold crushing strength Mpa:

≥50

Refractoriness under load(0.2MPa) °C:

≥1520

Reheating Linear Change:

+0.1~ -0.4

Bulk density:

2.4-2.5g/cm3

Sample:

free