The refractoriness of different kinds of refractory bricks

2017-08-07 07:19:35

High alumina brick refractoriness refers to the brick in the absence of load to resist the role of high temperature without melting properties, used to resist the role of high temperature performance.
Although the refractoriness is an important technical indicator for evaluating the fire resistance of high alumina bricks, it can not be used as the upper limit of the use temperature. High alumina brick refractory test standard for the GB / T 7322 "high alumina brick refractory test method." Some commonly used refractory bricks are as follows:
1, high alumina brick> 1770 2000 ℃
2, clay brick 1610-1750 ℃
3, hard clay 1750-1770 ℃
4, crystalline silica 1730-1770 ℃
5, silicon brick 1690-1730 ℃
6, magnesia refractory bricks> 2000 ℃
7, dolomite refractory brick> 2000 ℃
Different kinds of brick with different refractoriness,even the same kind refractory brick,different grade(different chemical composition) main material contains,the refractoriness would be different.

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