By chemical composition:
Acidic, alkaline and neutral.
According to fire resistance, it is divided into four categories:
Ordinary refractory (1580 ~ 1770 ℃), advanced refractory (1770 ~ 2000 ℃), super refractory (above 2000 ℃) and super refractory (greater than 3000 ℃).
According to the processing and manufacturing process
It is divided into fired products, melt cast products and non fired products.
By application:
Refractories for blast furnace, open hearth furnace, converter, continuous casting, glass kiln, cement kiln, etc.
Classification by appearance:
Refractory shaped products, refractory mud and unshaped refractory materials.
According to shape and size:
Standard, general, special, special and super special products.
According to the forming process:
Natural rock cutting and sawing, mud pouring, plastic forming, semi dry forming, vibration, tamping, melting and casting and other products.
Divided by chemical mineral composition:
Aluminosilicate (clay brick, high alumina brick, magnesium chromium brick); Siliceous (silica brick, fused quartz fired products); Magnesia (magnesia brick, magnesia alumina brick, magnesia chrome brick); Carbonaceous (carbon brick, graphite brick); Dolomitic; Zircon; Special refractory products (high purity oxide products, refractory compound products and high temperature compliance materials).