Item

Mullite brick

Re-sintered fusion mullite brick

Mullite corundum brick

Corundum mullite brick

High purity corundum brick

MZ-70

SDM-75

MGZ-80

GM-88

GGZ-99

Max. service temperature,oC

1600

1650

1700

1750

1800

Al2O3, % ≥

70

75

80

88

99

SiO2, % ≤

25

23

18

8

0.2

Fe2O3, % ≤

0.5

0.5

0.5

0.3

0.15

Bulk density,≥,g/cm3

2.55

2.65

2.70

2.9

3.15

Apparent porosity, % ≤

17

17

19

19

19

CCS, MPa ≥

90

100

80

70

70

Refractoriness under loadoC,≥(0.2MPa,0.6%)

1630

1700

1700

1700

1700

Application

Used in upper lining, paving part and cover board of glass tank; also used as linings of other industry kilns such as carbon black reactor, etc.

Used as hat block and last block in upper part of glass tank, also used in linings of other hot-work devices

Used in upper lining, paving part and cover board of glass tank; also used as linings of other industry kilns such as carbon black reactor,etc.

Used as lining materials for various high temperature kilns such as hot blast stove and EAF, etc.

Used as lining materials in petrochemical kilns such as compound ammonia gasifier, decomposing kiln, gas generator, carbon black reactor, also used in kilns in refractory and metallurgy