Surface Porosity 24-27% Custom Size Refractory Brick

Refractory brick

Fireclay resistant brick is a high-quality refractory material designed for industrial furnaces, kilns, and boilers. With excellent thermal stability, mechanical strength, and resistance to chemical attack, these bricks ensure long-lasting performance in harsh high-temperature environments. Available from trusted fireclay brick suppliers, they are widely used in steel, cement, glass, and ceramic industries. Standard refractory clay brick options are also available for versatile industrial applications.Combining durability, thermal efficiency, and chemical resistance, fireclay resistant brick, provided by professional fireclay brick suppliers, and standard refractory clay brick options, offer reliable performance for high-temperature industrial furnaces and equipment.

Key Features

High Thermal Resistance – Fireclay resistant brick withstands continuous temperatures up to 1,500–1,600°C.

Mechanical Strength – Maintains integrity under heavy loads and thermal cycling.

Chemical Stability – Resists acidic and neutral slags for extended furnace life.

Reliable Supply – Produced by professional fireclay brick suppliers for consistent quality.

Versatile Applications – Standard refractory clay brick sizes and custom shapes available.

Refractory bricks are blocks of refractory ceramic materials used for lining furnaces, kilns, stoves and fireplaces. Refractory bricks are mainly designed to withstand high heat, but usually should also have low thermal conductivity to save energy. Generally, dense bricks are used in applications with extremely high mechanical, chemical or thermal stresses, such as the interior of wood burning kilns or furnaces. These materials are susceptible to wood abrasion, ash or slag slag and high temperatures. Dense refractory bricks have a high thermal mass, which is sometimes a useful attribute because after the fire is extinguished, they will retain heat in, for example, a pizza oven. Kiln bricks are made by firing a clay-based composition in a kiln until it is partially vitrified. For special purposes, it can also be glazed. Refractory bricks usually contain 30% to 40% alumina, and the main raw material is usually clay with other materials. The maximum use temperature increases with the increase of alumina content, and kiln bricks with alumina content above 80% can be obtained.

$Custom Size Refractory Brick for Kiln 0$

Specifications:

Technical data

Item	SK-30	SK-32	SK-34	SK-36	SK-38
AL₂O₃ % (min)	30-35%	35-38%	38-42%	50-55%	60-65%
Fe₂O₃% (max)	3	3	2.8	2.5	2.3
Refractoriness	≥1670°C	≥1690°C	≥1710°C	≥1750°C	≥1770°C
Refractoriness under load, 0.2MPa, (°C)	≥1270	≥1350	≥1350	≥1430	≥1450
Apparent porosity (%)	20-24	20-24	19-23	18-22	18-22
Bulk density (g/cm³)	2.00-2.05	2.05-2.1	2.1-2.15	2.15-2.25	2.25-2.35
Cold crushing strength (MPa)	≥25	≥30	≥35	≥45	≥50
Thermal expansion at 1000°C (%)	≤0.6	≤0.55	≤0.55	≤0.4	≤0.4

$Custom Size Refractory Brick for Kiln 1$

Low-density refractory bricks

In other less demanding situations (such as natural gas kilns), perforated bricks are a better choice, usually called insulating bricks. They are weaker, but much lighter than lightweight bricks, easier to form, and have better thermal insulation. In this case, their thermal mass is low and therefore cannot be used to store heat. Insulation bricks have better thermal shock resistance than dense refractory bricks, but the main disadvantage is low strength. The thermal insulation properties of these bricks usually come from perlite or verstone. Like dense refractory bricks, there are a series of grades corresponding to different maximum service temperatures. The most common is 23 – 1260 oC.

Applications:

1. Carbon bake furnaces in the aluminum industry

2. Preheat zones and cyclones of rotary cement kilns

3. Insulation for glass tanks

4. Fireplace and pizza ovens

5. Coke ovens

6. Blast furnaces

7. Reheating furnaces

8. Suspended roofs

9. Lime kilns

10. Chimney

$Custom Size Refractory Brick for Kiln 2$

Our refractory bricks include various

Fireclay brick, composed of 30% to 45% alumina, is a hard "super duty" fire clay brick

High alumina bricks for steel/ironmaking furnaces, glass furnaces, ceramic tunnel kilns, cement kilns, etc.

Alumina foam bricks with excellent insulation properties and high thermal strength up to 1800°C

Acid-resistant brick or acid-resistant brick, chemical resistance, heat resistance

High-purity alumina spinel bricks or rotary kiln bricks made of common raw materials

AZS brick or ZrO2 brick for sodium silicate furnace, ceramic furnace, glass furnace and other applications

Corundum bricks, special high alumina refractory bricks

Insulation refractory brick or IFB for high temperature insulation

Magnesite bricks are used for regenerator inspection work and walls

High-strength corrosion-resistant mullite bricks for the upper structure of the glass bath

Silica bricks for the roof and superstructure of the glass melting pool, and thermal repair

Silicon carbide / SiC brick / silicon nitride bonded silicon carbide has excellent thermomechanical strength-high thermal conductivity, high bending strength, good thermal shock resistance, small pore size, low gas permeability, to molten metal Excellent permeability with slag and low wettability

Zircon bricks have excellent heat resistance, high compressive strength and excellent thermal shock resistance

Tag:

Place of Origin:	Zibo, China
Brand Name:	Laurel
Certification:	ISO9001
Model Number:	Laurel-01

Minimum Order Quantity:	20 ton
Packaging Details:	packed on wooden pallets, with water-proof cover, and tightened with plastic/steel bandages
Delivery Time:	20~30 days
Payment Terms:	T/T;L/C
Supply Ability:	20,000 ton/Year

Classification:	SK32; SK34; SK36	Product Name:	Insulation Refractory
Shape::	Brick	Feature::	Thermal Insulation
Usage:	Linings, Furnaces And Kilns Etc	Material::	Clay Fire Brick
Highlight:	high alumina brick , refractory brick panels

	QINGDAO LAURENT NEW MATERIALS CO.,LTD
	RM 1003, Building 1,The Fortune Zone,No.17 Lianyungang Road,Qingdao,China
	86--15063999498
	yulina@sino-laurel.com.cn

Custom Size Refractory Brick for Kiln

high alumina brick

refractory brick panels

refractory brick panels

high temperature refractory

high alumina brick