alumina brick, buy top quality mullite bricks for oven on China Suppliers Mobile

Product Details

Specifications

1,mullite bricks
2,good corrosion resistances to acids and alkali.
3,Widely used as linings in decomposing furnaces for petr

mullite bricks

Characteristics:

1,The sintered corundum products were produced by sintering of high purity fused corundum, synthetic mullite and chromium oxide.

2, They have high bulk density,

3,high compressive strength,

4,good thermal shocking resistance,

5, good corrosion resistances to acids and alkali.

6,They are not influenced by H₂, CO gases at use.
Applications: Widely used as linings in decomposing furnaces for petroleum and chemical industry, as well as chemical fertilizer industry. They also used as high temperature kiln linings and furniture’s in metallurgical industry.

Chemical and Physical Properties of Corundum Products

Name Indexes Items		High purity corundum bricks DL-98	Normal corundum bricks DL-95	Normal corundum bricks DL-90	Mullite corundum Bricks MDL-80	Chromium oxide corundum Bricks GDL-85
Chemical composition	Al₂O₃%	98.5	95	90	80	85
	Cr₂O₃%
	SiO₂%	0.3	3.0	9.0	18	0.2
	Fe₂O₃%	0.2	0.2	0.5	0.5	0.2
	R₂O%	0.3	0.6	0.6	0.4	0.5
Bulk density g/cm³		3.0	2.9	2.9	2.7	3.1
Compressive strength at normal temperature MPa		75	100	100	60	80
Fire resistant °C		1790	1790	1790	1790	1790
Soften point at 0.2 MPa load KD °C		1700	1650	1650	1700	1700
Reheating linear shrinkages% 1600 °C ×3h		0.2	0.2	0.2	0.3	0.2
Thermal shock stability 1100 °C water		6	10	10	20	15

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