Corundum Bricks For Sale

Corundum brick is a refractory product with the content of alumina more than 90% and the principle crystalline phase is corundum, which have the characteristics of high cold compressive strength (up to 340MPa), high load softening start temperature (more than 1700 degrees C). good chemical stability, strong resistance to acid or basic slag, metal and glass liquid. The thermal shock stability is related to its structure, and the corrosion resistance of the compact products is good, but the thermal shock stability is poor. It is divided into sintered corundum brick and electric fused corundum brick.

Application of Corundum Bricks

It is mainly used in ironmaking furnace and blast furnace hot blast stove, refining furnace outside steelmaking furnace, sliding water device, glass furnace and petrochemical industrial furnace.

Corundum brick has been widely used in the lining material of high temperature, high pressure, chemical corrosion and mechanical wear of the petrochemical thermal device, with the improvement of petrochemical industry production technology, many new process and new technology used in production to enable the equipment to achieve the large load, long cycle, low energy consumption, low cost, in addition to the transformation of various thermal equipment, put forward higher requirements but also various lining materials on thermal equipment. In order to meet the needs of the petrochemical industry, a series of chromium corundum products with better resistance to high temperature and corrosion resistance have been developed.

Properties of Corundum Bricks

High cold crushing strength , which can reach to 340MPa.
High initial refractoriness under load is more than 1700℃。
Good chemical stability.
Strong resistance to acid and basic slag erosion.
Strong resistance to metal and molten glass erosion.
Dense products have strong resistance to erosion, but its thermal shock resistance is weak.

Index of Corundum Brick

Corundum Brick
Item		Index
Item		Unit	CMC	C90	C95	C98
Al2O3 ≥		%	85	90	95	98
Fe2O3 ≤		%	0.5	0.8	0.6	0.4
Cr2O3 ≥		%	—	—	—	—
Apparent porosity ≤		%	20	20	20	20
Bulk density ≥		g/cm3	2.8	3.0	3.05	3.1
Cold crushing strength ≥		Mpa	40	80	80	80
Refractoriness under load (0.2Mpa) ≥		℃	1500	1700	1700	＞1700
Reheating linear change	1550℃*2h	%	—	±0.1	±0.1	—
Reheating linear change	1600℃*2h	%	—	—	—	±0.1

Chrome Corundum Brick & Titanium Corundum Brick

Item		Unit	CMC	Chrome Corundum Brick	Titanium Corundum Brick
Item		Unit	CMC	(CC12)	(TC)
Al2O3 ≥		%	85	73	94
Fe2O3 ≤		%	0.5	1.0	0.4
Cr2O3 ≥		%	—	12	(TiO2) 1.0
Apparent porosity ≤		%	20	20	2
Bulk density ≥		g/cm3	2.8	3.0	3.6
Cold crushing strength ≥		Mpa	40	50	300
Refractoriness under load (0.2Mpa) ≥		℃	1500	1700	1650
Reheating linear change	1550℃*2h	%	—	—	±0.1
Reheating linear change	1600℃*2h	%	—	±0.2	—

Corundum Fire Brick

Corundum Fire Brick Introduction Corundum brick is a refractory product with the content of alumina more than 90%, which have the characteristics of high cold compressive strength (up to 340MPa), high load softening start temperature (more than 17...