Fireclay Brick UNF42

Ref Price:
$206.61 - 252.53 / m.t
Loading Port:
China Main Port
Payment Terms:
TT or L/C
Min Order Qty:
5 ton m.t
Supply Capability:
1000 Tons Per Month m.t/month

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Product Description:

General Information of Fireclay brick UNF42

Our corporation produces a comprehensive range of Fireclay bricks, with 30% to 55% alumina content, all of these bricks exhibit excellent performance.

Our Fireclay bricks are the final result of blending excellent fused alumina and silicon as the main raw materials with cutting-edge technology, adding superfine powder, after mixing, drying, forming, in the high temperature shuttle kiln. We ensure you that the Fireclay Bricks made by us possess high quality standard and have gone through all the complicated quality control parameters. Their durability and strength adds life to the structure and they have the capacity of bearing high temperature.



          Technical Data of Fireclay Brick UNF42

Physical Properties:




Permanent Linear Change(1400℃×2h)%



Apparent Porosity, %



Cold Crushing Strength



Refractoriness Under Load (T0.6)


Thermal Expansion at 1000℃,






Chemical Analysis:









Technical Data are typical average results from test pieces. The technical data is offered solely for your consideration. And CNBM reserve the right to modify the technical data without any prior notice. Users of CNBM products should make their own tests to determine the suitability of each product for their particular purposes.


Feature of Fireclay Brick UNF42

Resistant to thermal shock, abrasion, chemical attack

High ability for anti-abrasion during work

Low shrinkage degree under high temperature so as to maintaining integrity of the furnace lining

Low apparent porosity, and low Fe2O3 content to reduce the carbon deposit in the blowhole and avoid the bricks broken in case of expansion.



Applications of Fireclay Brick UNF42

Fireclay brick UNF42 is mainly used in the part of throat, stack, hearth, bottom for blast furnace and the stack for a big blast furnace.

1. Carbon baked furnaces in the alumina industry

2. Preheat zones and cyclones of rotary cement kilns

3. Insulation for glass tanks

4. Coke ovens

5. Blast furnaces

6. Reheating furnaces

7. Suspended roofs

8. Lime kilns

9. Chimney


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Q:Are clay bricks radioactive?
Basically, any substance has radiation, because natural conditions contain a lot of radioactive particles, and even the body itself has reflective particles, such as carbon 14, but the dose is safe.
Q:Can thick steel plate be used instead of the furnace inside the refractory brick?
It depends on the temperature. The steel plate is a kind of heat conduction material which hasn't heat insulation, which should be based on the working environment.
Q:can the refractory sand be used to make refractory bricks?
yes, a lot of refractory sand is made by broken refractory brick, they have the same function.
Q:how much is the content of the high alumina of refractory brick?
linear change on reheating is small and Slag resistance is good, matte smelting, good thermal shock resistance used refractory materials should be resistant to high temperature: In front of the furnace, the temperature can reach 1800, copper blowing. The maximum temperature in the smelting furnace area is on the top, pyro-refining and electrorefining, magnesia chrome brick, magnesia chrome castable, magnesia alumina brick. The commonly used refractory materials is direct-bonded magnesia-chrome bricks, which has large volume density. manufacturing technique of copper smelting consists of five parts, Clay brick
Q:Do refractory bricks insulate heat?
The light brick inside the brick is heat insulation brick, according to the different bulk density, the effect is also different
Q:Solid brick and clay brick which is expensive
Red brick generally refers to sintered clay bricks. Generally divided into standard brick (Shi Xinzhuan), porous brick (KP brick), hollow brick (KM brick) and so on.
Q:Can someone tell me the refractory brick in the boiler mixed with what material to build the wall, and what proportion?
Go to the refractory factory to buy some refractory clay that has the same texture of refractory bricks, the general boiler use clay refractory mortar.
Q:The harm of wet bricks used in refractory bricks
Increase the natural protection time, increase the baking time, or water can not discharge, this will cause swelling deformation of furnace wall.
Q:How many bricks, mortar and how much wear and tear does one side of the clay brick masonry need?
1M3 standard brick wall tile net amount is 521.7 pieces, and the standard brick attrition rate is 1%, therefore the 1M3 standard brick wall actually has the standard brick 521.7/1.01=516.53 block
Q:How much refractory material is required for 1 million tons of coke oven
This depends on the number of specific cubic, different factory designs different boiler, we need volume to caculate.
We are an industrial enterprise of refractories integrating the scientific research, design, production and engineering service. With first-class quality of products, high-efficient and prompt after-sale service, our products are not only well sold in many domestic large steel enterprises and coking enterprises, but also widely exported to more than 23 countries and regions.

1. Manufacturer Overview

Location Henan, China
Year Established 2007
Annual Output Value Above US$ 200 Million
Main Markets North America;Asia;Western Europe;Africa;Russia;Middle East
Company Certifications ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin
Export Percentage 20% - 30%
No.of Employees in Trade Department 10-20 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 150,000 square meters
No. of Production Lines Above 10
Contract Manufacturing Installation guide, OEM Service Offered
Product Price Range High; Average