Insulating Firebrick

Descriptions

Zhongzi insulating firebrick 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. Our insulating firebrick is manufactured from high-grade refractory powder and materials in good purity. During the

process of production, organic and multiple filling materials are injected according to the required proportion, the brick is compressed in vacuum and sintered under high temperature.

 

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

 

Typical Parameters

Description	Grade 23	Grade 26	Grade 28	Grade 30
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
Physical Properties
Density (kg/m3)	600	800	900	1000
Classification Temperature (°C )	1300	1400	1500	1550
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(%)x 24hrs	≤0.6	≤0.6	≤0.8	≤0.9
Thermal Expansion(%)1000°C	0.5	0.52	0.52	0.53
Thermal Conductivity (W/m.k)
350°C	0.18	0.25	0.33	0.38
400 °C	0.20	0.29	0.35	0.40
600 °C	0.24	0.32	0.37	0.42

The data shown are average results of tests under standard procedures and are subject to variation. Results should not be used for specification purposes or creating any contractual obligation. For more information on the safety application or materials, please refer to the work practices and material safety data sheet.

 

 

Advantages of our bricks

ZHONGZI INSULATING FIREBRICK

 

Correct size and cut

Pure raw materials

Standard open porosity

High strength

Low shot content

 

"XX"BRAND INSULATING FIREBRICK

Coarse appearance and color

Bad cutting and wrong dimension

Mixed with poor raw materials

Fragile and low C.C.S.

 

Irregular porosity and high impurities

 

The above comparision image shows our consistent quality and advantages.We supply the bricks under strict control on quality, which ranges from the inspection on raw materials, the supervision on the production technique and process, the check on the delivered materials before dispatch. Our bricks are proved to be a state-of-art thermal insulating materials in the industrial furnaces and kilns due to its features such as low thermal conductivity, the low iron content and good strength, as a qualified member of the family of refractories in LUYANG company, the applications and engineering together with our refractory ceramic fibers are obtaining increasing and unparalleled popularity.

 

Dimensions

Standard dimensions:

230x114x64mm

230x114x76mm

Customized production for bricks with special dimension is available

Shaped bricks such as arch or key can be produced according to the drawings

 

Packages

Packed in carton box:

Bricks are paved inside the cartons and normally, 8 or 10 pcs bricks per carton box, this way of package is suitable for the procurement in small quantities.

Packed in wooden pallet:

Bricks are paved onto the pallet in a row, each layer shall be separated and the wooden case is wrapped by film, the cardboard around the four sides of pallet will protect bricks in the transportation.

230x114x64mm, 668pcs/pallet

230x114x76mm, 560pcs/pallet