Product Details

Fireclay castable insulation bricks Fireclay castable

Product Description

ISO 9001:2000 Certificate Manufacturer

We have exported to USA, India, Germany, Canada etc many countries, and they are satisfy with our products.

Hear Insulation firebricks are classified under temperature between 1300ºC and 1700ºC, manufactured from high purity alumina clay by mixing, press-forming, drying, sintering and machining. Bricks contain carefully-graded organic fillers which are burned out during sintering to give a uniform controllable pore structure. This technique makes product feature low thermal conductivity and excellent heat insulation

Insulation firebrick can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non ferrous foundries, petrochemical, ceramic, glass, cement and oil fired electric power generating plants.

ADVANTAGES:

Light weight and low thermal conductivity allows thinner furnace walls
Maintain stable structural strength throughout ambient to maximum service temperature
Low heat storage results in rapid cooling and heating operation
Low iron and impurities to enhance reducing atmosphere
High thermal shock resistance in preventing spalling
Non standard sizes and shapes are available upon request

APPLICATIONS:
Ceramic shuttle kilns
Laboratory furnaces

Metal heat treatment furnaces and Steel billet reheating furnaces

Sunrise Brand		NG-0.5	NG-0. 6	NG-0. 8	NG-1.0	NG-1.3	NG-1.5
USA Brand		ISO125-0.5	ISO125-0.6	ISO135-0.8	ISO135-1.0	ISO140-1.2	ISO140-1.5
Max Service Temperature (°C)		1150	1200	1280	1300	1350	1400
Bulk Density (g/cm3)		0.55	0.6	0.8	1.0	1.3	1.5
Apparent Porosity %		80	70	60	55	50	40
Cold Crushing Strength (Mpa) ≥		1.5	2.0	2.5	3.0	4.0	6.0
Reheating Linear Change (%) °CX 12H ≤		1250°C -0.5	1300°C -0.5	1350°C -0.5	1350°C -0.9	1350°C -0.9	1350°C -0.9
Thermal conductivity(W/m.k)	400°C	0.14	0.25	0.35	0.41	0.51	0.6
	600°C	0.16	0.29	0.45	0.43	0.61	0.71
	800°C	0.18	0.31	0.50	0.44	0.67	0.77
	1000°C	0.20	0.33	0.60	0.45	0.8	0.9
Al2O3 (%)		37	40	40	40	40	42
Fe2O3 (%)		1.0	1.5	1.5	1.5	2	2
SiO2		44	55	55	55	55	55