Fire-clay bricks

1Good thermal shock 2Good thermal spalling resistance 3High mechanical strength 4Good resistance to abrasion and corrosion

Fire-caly bricks

The main chemical components:

Al2O3 content is 30%-48%, SiO2 content is 50%-65%, and a small number of alkali metals, alkaline earth metal oxides, etc. Mineral composition is usually mullite, quartz and glass phase. Its refractoriness is 1580-1750°C, refractoriness under load is 1250-1450 °C, line expansion coefficients is low, with good thermal shock resistance and  strong ability to resist erosion acid slag.

Highlight:

•Good thermal shock and thermal spalling resistance.

•High mechanical strength.

•Good resistance to abrasion and corrosion.

•Good volume stability at high temperature.

Applications:

It is widely used in metallurgy,construction (glass and cement), chemical industry, electric power and machine building.

Our refractory bricks are mainly including fireclay, magnesia, high alumina, silica and other refractory bricks, if you have any product need my help, feel free to contact me.

Physical properties:

Index		Item
		N-1	N-2a	N-2b	N-3a	N-3b	N-4	N-5	N-6
Refractoriness, CN		176	174	174	172	172	170	166	158
Refractoriness under load ,°C 2kg/cm2≥		1400	1350		1320		1300
Reheating linear change%	1400°C,2h	+0.1-0.4	+0.1-0.5	+0.2-0.5
	1350°C,2h				+0.2-0.5	+0.2-0.5	+0.2-0.5	+0.2-0.5
Apparent porosity,%≤		22	24	26	24	26	24	26	28
Compress strength,N/mm2≥		30	25	20	20	15	20	15	15
Thermal shockresistance		N-2b, N-3b must be tested and list the actual measuring data in the quality Certification.

Fire-clay bricks