Mullite Insulating Refractory Bricks Light Weight Brick

The bricks to be packed by fumigation wooden pallets.

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Model:
JM23
Brand:
Dezhen
Code:
690220

Product Description

Characteristics of this series products are as follow:
Low iron content and low temperature smelt of alkali metal, Good refractoriness and good affection of reducing atmosphere resistance. The product is featured with even structure,light weight,high CCS and good insulation resistance, so the furnace body has less heat storage during cooling and energy can be saved effectively. At high temperature, the product is characterized by high strength, stable volume and good thermal shock resistance. After product being sintered, it will be ground resulting in small size tolerance and can meet the requirements of construction.

The technical specification :
JM series insulation brick

Items	JM23	JM26	JM29	JM32
Max service temperature ºC	1260	1400	1550	1650
Bulk density g/cm3 max	0.6	0.9	1.1	1.15
Cold crushing strength Mpa min	1	1.5	3.5	4.5
P.L.C 24hrs % max	±1.5 1250ºC	-0.7 1350ºC	-0.7 1450ºC	±0.5 1550ºC
Thermal conductivity w/m.k max
400ºC	0.20	0.28	0.4	0.65
600ºC	0.25	0.30	0.4	0.65
800ºC	0.30	0.42	0.45	0.60
1000ºC	0.35	0.50	0.55	0.65
1200ºC	0.40	0.55	0.60	0.65
Al2O3 % min	35	55	55	72
Fe2O3 % max	1.0	1.0	1.0	1.0
SiO2 % max	--	40	40	26

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