Best Price on Chromite Bricks - Fireclay Brick – Topower

Best Price on Chromite Bricks - Fireclay Brick – Topower

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Best Price on Chromite Bricks - Fireclay Brick – Topower Detail:

Description

Fireclay bricks are made of 50% soft clay and 50% hard clay clinker, which are batched according to certain particle size requirements. After molding and drying, they are fired at a high temperature of 1300~1400℃. Fireclay bricks are weakly acidic refractory products, which can resist the erosion of acidic slag and acid gas, and have a slightly weaker resistance to alkaline substances, good thermal performance, and resistance to rapid cold and heat

Fireclay bricks are one of the main varieties of silica-alumina series products. They are refractory products with 30-48% Al2O3 content made of clay clinker as aggregate and refractory clay as binder.

In China’s fireclay bricks, the Al2O3 content is generally more than 40%, and the Fe2O3 content is less than 2.0 to 2.5%. The clinker in the ingredients is 65-85%, and the combined clay is 35-15%. The crushed combined clay and the finely ground clinker are mixed and ground, and then mixed with the granular clinker to prepare a semi-dry mud, which is molded under high pressure and fired at about 1400°C with better performance. Fireclay bricks are weakly acidic at high temperatures, and their ability to resist alkaline slag erosion is slightly worse, but it increases with the increase of Al2O3 content. The thermal stability is better than silica bricks and magnesia bricks.

Features

Good high temperature fire resistance under load / Low thermal expansion at high temperatures

Lower impurity content / Good thermal shock resistance

Excellent slag and abrasion resistance / Good cold press strength

Application

Fireclay bricks are mainly used in thermal boilers, glass kilns, cement kilns, fertilizer gas furnaces, blast furnaces, hot blast furnaces, coking furnaces, electric furnaces, bricks for casting and pouring steel, etc.

Physical And Chemical Indicators

 Brand Properties

SK-40

SK-38

SK-37

SK-36

SK-35

Refractoriness (SK)

40

38

37

36

35

Apparent Porosity (%)

22

23

23

23

23

Bulk Density (g/cm3)

2.65

2.40

2.35

2.30

2.25

Cold Crushing Strength(MPa)

70

52

50

45

40

Thermal Linear Expansion(%)   @1000deg

0.6

0.6

0.6

0.6

0.6

Permanent Linear Change(%) @1400degx2hrs

±0.2

±0.3

±0.3

±0.3

±0.3

Refractoriness under Load (℃)   @0.2MPa

1,530

1,500

1,450

1,420

1,380

Chemical Composition(%)

Al2O3

80

72

60

50

46

Fe2O3

1.8

2.0

2.0

2.0

2.0

Main Applications

- Nonferrous Metal Furnace

- Rotary & Shaft Kiln

- Various Incinerator

- Reheating Furnace

- Permanent Lining For EAF Ladle

- General Industrial Furnace etc.


Product detail pictures:

Best Price on Chromite Bricks - Fireclay Brick – Topower detail pictures

Best Price on Chromite Bricks - Fireclay Brick – Topower detail pictures

Best Price on Chromite Bricks - Fireclay Brick – Topower detail pictures


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  • This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Renata from Kuwait - 2018.09.12 17:18
    In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
    5 Stars By Diana from Moldova - 2017.01.28 19:59
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