Magnesia Brick

Magnesia bricks have high refractoriness, good resistance to alkaline slag, high load softening temperature, but poor thermal shock resistance. Magnesia bricks are widely used in steel melting furnace lining, the ferroalloy fiber cable furnace in steel industry, etc.

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Tel: +86 372-5055135

E-mail:sale@zaferroalloy.com

Fax: +86-372-5055135

Wechat: +86 15896822096

Address:25th Floor, Huafu Commercial Center, Wenfeng District, Anyang City,Henan Province

Description

Magnesia Bricks was prepared with hercynite as raw materials. The application results showed that the kiln coating formed rapidly and stability when using magnesia-hercynite brick. The magnesia-hercynite brick had low thermal conductivity and long service life, and its overall performance was better than magnesia-chrome brick.

The regular magnesia bricks are made from dense dead burned magnesia that makes the bricks in good refractoriness, corrosion-resistance, and widely used in checker chamber of glass tank, lime kiln, non-ferrous metallurgical furnaces, open heart furnace, iron mixer and EAF of steel-making, and also ferro-alloy furnace, etc. The bricks with MGO 95% or more in content take the secondary-burning dead burned magnesia or electrofused magnesia as the raw material and bured under the condition of ultra high temperature. They have the features of highly directly bonded and corrosion-resistance and widely used in various kinds of high temperature kilns and furnaces.

Features:
1.Higher temperate resistant with good refractoriness
2.Good performance in high temp refractoriness under load
3.Excellent resistance in slag abrasion
4.Higher bulk density
5.Lower apparent porosity
6.Lower impurity content

Specification

Item	Grade 91	Grade 92	Grade 93	Grade 94	Grade 97
MgO, % ≥	91	92	93	94.5	97
SiO2, % ≤	4	3.5	2.5	2	2
Fe2O3, % ≤	1.3	–	–	1.2	1.2
CaO, % ≤	2.5	2.5	2	1.8	1.8
Apparent Porosity, ％ ≤	18	18	18	18	18
Bulk Density, g/cm3 ≥	2.86	2.9	2.95	2.92	2.95
Cold Crushing Strength Mpa, ≥	60	60	50	60	60
0.2Mpa Refractoriness Under Load T0.6 ℃	≥1570	≥1560	≥1620	≥1650	≥1700
Thermal Shock Resistances 100 ℃ water cycles	≥18	≥18	≥18	≥18	≥18

Application:
Magnesia bricks are widely used in steel melting furnace lining, the ferroalloy fiber cable furnace in steel industry, non-ferrous metallurgical industry furnace (such as copper, lead, zinc, tin, lining), building materials industry kiln, glass industry body and heat exchanger regenerator grid, refractory material industry of high temperature calcination kiln, shaft kiln, tunnel kiln, etc.

FAQ
Q: Are you manufacture special sizes?
A: Yes, we can make parts according to your requirement.

Q: Do you have any in stock and what is the delivery time?
A: We have a long-term stock of spot to meet customers requirements.We can ship the goods in 7 days and customized products can be shipped in 15 days.

Q: What's the MOQ of trial order?
A: No limit,We can offer the best suggestions and solutions according to your condition.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 25-30 days if the goods are not in stock, it depends on the quantity.

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