Fire Clay Bricks

Fire clay bricks are also called chamotte bricks, which are manufactured from unfired refractory bond clay and fire clays (chamotte), fired refractory clay, or similar grog materials. Fire clay bricks have two main components namely 18% to 45% of alumina (Al₂O₃) and 50% to 70% of silica (SiO₂) and about 7% of others.

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Introduction of Fire Clay Bricks

Fire clay refractory bricks are also called Chamotte bricks, which are manufactured from unfired refractory bond clay and fire clays (chamotte), fired refractory clay, or similar grog materials. Fire clay refractory bricks have two main components namely 18% to 45% of alumina (Al₂O₃) and 50% to 70% of silica (SiO₂) and about 7% of others.

High density, low-porosity fire clay brick is our featured product in this category. Due to its low apparent porosity rate, it has great features of strong resistance to erosion, high refractoriness under load, great cold crushing strength, high mechanical strength, etc.

Grades of Fire Clay Bricks

High Grade: 1482~1660℃

Medium Grade: 1315~1482℃

Low Grade: up to 950℃

Application of Fire Clay Bricks

Fire clay bricks are used to build heating furnaces and heat treatment furnaces, lining pipes Lining flues, dust collectors of iron-making furnaces, safety lining of rotary kilns, lime kilns, ceramic kilns, glass kilns, and boilers construction.

1. Fire clay bricks are used to build heating furnaces and heat treatment furnace

2. Lining of pipes

3. The lining of flues, and dust collectors of iron-making furnace

4. Safety lining of rotary kilns, lime kilns

5. Ceramic kilns

6. Glass kilns

7. Boilers construction

Package of Fire Clay Bricks

1. Wooden Pallet

2. Carton + Wooden Pallet

Properties of Fire Clay Bricks

Good resistance to corrosion and abrasion;
Perfect thermal shock resistance;
Good spalling resistance;
High mechanical strength;
Good volume stability under high temperatures;
Excellent thermal performance, and acid resistance;

Chemical & Physical Index

Items / Types		XHJFC-45	XHJFC-40	XHJFC-30	XHJFC-25
Chemical Composition (%)	Al₂O₃	43 - 45	39 - 42	30 - 38	25 - 29
Chemical Composition (%)	Fe₂O₃	1.8	1.8	2.0	2.1
Bulk Density	g/cm³	2.40	2.35	2.30	2.2
Apparent Porosity	%	≤20	≤22	≤24	≤25
Modulus of Rupture	kg/cm²	92	90	80	75
Cold Crushing Strength	MPa (≥)	40	25	21	18
Linear Expansion @ 1350°C	%	0.2	0.2	0.2	0.2
Pyrometric Cone Equivalent		32	32	31	30
Refractoriness Under Load 0.2MPa, ℃ (≥)		1650	1580	1500	1440