Product Details

Supply High Grade silica refractory brick

Product Description

Adopts high quality silica and advanced technology, our silica bricks enjoy the advantages of high purity, long service life, good thermal conductivity, high refractoriness under load, and good creep resistance. In addition, it has accurate size tolerance, pure color and luster appearance. Because of the bad thermal shock resistance of silica brick, it is mainly used in the continuous operating furnace. Supporting the use of other high quality refractories, our silica brick can extent the service life of float glass furnace to 8 years and double the service life of bottle glass furnace. It is widely used in coke oven, hot blast furnace, glass furnace and carbon furnace.

Applications

The silica brick can be widely used in coke oven, hot blast furnace, glass furnce and carbon furnace. In glass industry, it is mainly employed to build the doghouse crown, suspended wall of channel, top crown and inlet sealing. In metallurgy industry, it is adopted as the nozzle brick.

$Supply High Grade silica refractory brick$ $Supply High Grade silica refractory brick$

The main applications

1. Doghouse crown, suspended wall of channel, top crown and inlet sealing of glass furnace

2. High temperature part of coke oven.

Specifications

High purity

Long service life

Accurate size tolerance

Pure color

Luster appearance

Advantages

Good thermal conductivity

High refractoriness under load

Good creep resistance

High refractoriness

. $Supply High Grade silica refractory brick$ $Supply High Grade silica refractory brick$

Physical and chemical index

Item		BG-94	BG-95	BG-96A	BG-96B
Chemical composition	SiO₂	≥94	≥95	≥96	≥96
	Fe₂O₃	≤1.5	≤1.5	≤0.8	≤0.7
	Al₂O₃+TiO₂+R₂O		≤1.0	≤0.5	≤0.7
Refractoriness ℃		1710	1710	1710	1710
Apparent Porosity%		≤22	≤21	≤21	≤21
Bulk Density g/cm³		≥1.8	≥1.8	≥1.8	≥1.8
True Density,g/cm³		≤2.38	≤2.38	≤2.34	≤2.34
Cold Crushing Strength Mpa		≥24.5	≥29.4	≥35	≥35
0.2Mpa Refractoriness Under Load T_0.6℃		≥1630	≥1650	≥1680	≥1680
Permanent Linear Change On Reheating (%)1500℃X2h		0~+0.3	0~+0.3	0~+0.3	0~+0.3
20-1000℃ Thermal Expansich10^-6/℃		1.25	1.25	1.25	1.25
Thermal Conductivity (W/MK) 1000℃		1.74	1.74	1.44	1.44