Product Details

Specifications

alumina brick:
1.Low thermal conductivity
2.high temperature resistance
3.excellent insulation
4.acid-base erosion resistant

Fire Brick-Alumina Brick, Insulation Brick

Company Information

Surya Thermal Insulation Material Co., Ltd. mainly exports all kinds of industry insulation materials and refractory materials required by customers.
The calcium silicate boards we produced feature high temperature and low temperature resistance. Annual output is 30000 cubic meters.
Products are used for processing equipment, piping and furnace because of thermal insulation and soundproof and fireproof characteristics. They are applied in electric power, metallurgy, prettification, construction and vessel fields.
With professional technicians and excellent team members, Tthe products from our company got good evaluation from customers.

We sincerely welcome you to negotiate business with us. You will get super products and super service from our company.

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Product Description

Heat insulation refractory bricks is my company the American advanced standard reference to the development and

production of a kind of high efficient, energy saving, high grade product. The products have been widely used in

metallurgical hot dip galvanized furnace, silicon steel processing furnace, blast furnace stove; The petrochemical

industry ethylene cracking furnace, hydrogen furnace, a transformation furnace, sulfur recovery units; And other such

as roller kiln, spindle type kiln, prevent (fight) carburizing (n) the stove and so on thermal device, and satisfactory

results.

Product features :

1. High temperature resistant,

2. Performance is good,

3. High strength,

4. Show low porosity,

5. An acid, alkali resistant, aggressive good, etc

Product application:

Mainly used for thermal boilers, cement kiln, glass furnace, gas furnace, fertilizer, blast furnace hot-blast stove, coking furnace, electric furnace, casting and casting steel brick

Technical parameters:

Al2O3%	>45
SiO2%	40
Fe2O3%	<1.0
CaO	1.7
Normal temperature the flexural strength MPa	1.0-1.3
Volume density %	0.52-1.25
Normal temperature compression strength MPa	1.2-3.4
Softening temperature °C	1250
Thermal shock stability (water) times / 1000 degrees air cold	>15
Coefficient of thermal conductivity W / (m.k) 350 degrees +-10 degrees	-1
Heavy burn line change %	-1 1300*12h
The highest use ° C temperature	1230-1760

Item		Unit	Index
			LZ-75	LZ-65	LZ-55	LZ-48
Al2O3≥		%	75	65	55	48
≥ refractoriness		°C	1790	1790	1770	1750
≥ softening temp under 0.2 Mpaload		°C	1520	1500	1470	1420
Liner change of heating	1500°C, 2h	%	+0.1 -0.4
	1450°C, 2h					+0.1 -0.4
≤ porosity		%	23		22
≥ pressure resistance at normal temp		Mpa	53.9	49.0	44.1	39.2

Photo:

$Refractory Fireproof Insulation Fire bricks$ $Refractory Fireproof Insulation Fire bricks$