Description

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Lightweight Refractory Bricks are made of high-quality and high-purity refractory powder, according to the specific gravity of the product, adding organic composite filler, and preparing lightweight mullite products by vacuum extrusion molding and high-temperature sintering finishing.It have advantage of light weight.

Insulation Bricks gains typical advantages including low thermal conductivity, fine thermal shock resistance, low heat containment and low iron content,Meanwhile,the outstanding mechanical flexibility, coupled with high insulating efficiency expands the extensive applications of IFB in a variety of industrial markets.

Features

Low thermal conductivity
High purity and low iron content

Good thermal resistance with direct access to fire
Superior thermal shock resistance

Accurate dimension and easy cutting

Typical Applications

Cracking furnace

Conversion furnace

Heating equipment

Refining equipment

Reproduction equipment

Hot blast stove

Technical Data

Description		Grade 23	Grade 26	Grade 28	Grade 30
Classification Temperature		1300C/2300F	1400C/2600F	1500C/2732F	1550C/2822F
Density(kg/m3)		600	800	900	1000
Cold Crushing Strength (MPa)		1.2	1.8	2.5	3.3
Modulus of Rupture(MPa)		1.0	1.7	2.3	3.1
Permanent Linear Change (%)x24hrs		≤0.6	≤0.6	≤0.8	≤0.9
Thermal Expansion (%)1000C		0.5	0.52	0.52	0.53
Thermal Conductivity (W/m.k)	350C	0.18	0.25	0.33	0.38
	400C	0.20	0.29	0.35	0.40
	600C	0.24	0.32	0.37	0.42
Chemical Composition (%)	Al2O3	42	56	67	73
	SiO2	55	41	30	24
	Fe2O3	≤1	≤0.8	≤0.7	≤0.7
	K2O+Na2O	1.1	1.7	1.7	1.7