ASTM Standard 41% Alumina 47% Silica Thermal Insulation Raw Material Insulating Fire Brick

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Refractory Material
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: BG96A
• Shape: Brick
• Material: Sio2
• Bulk Density (g/cm3): >1.88
• Apparent Porosity (%): <16
• Cold Crushing Strength (MPa): >40MPa
• Refractoriness Under Load (ºC): >1700
• Transport Package: Export Pallet
• Specification: 110.00cm * 110.00cm * 110.00cm
• Trademark: fireramo
• Origin: China
• HS Code: 6902200000
• Production Capacity: 1000ton/Month
• Package Size: 110.00cm * 110.00cm * 110.00cm
• Package Gross Weight: 1700.000kg

Product Description

Silica Brick







Description:
Silica brick for glass kiln is an acid refractory material mainly made of tridymite, cristobalite and a small amount of residue. The refractory raw material is natural silica sand, and its SiO₂ content should be above 96%. Silica brick has high temperature and volume stability, no pollution to glass liquid, chemical corrosion resistance, small bulk density, and can reduce the weight of the furnace body.
It has the feature of stable volume under the high temperature, no pollution to the glass liquid, good resistance to chemical attack and small bulk density is small.
It's used in the roof and superstructure of glass melting tanks as well as for hot repairs.

Technical Properties:
 

Item		Unit	Value
			BG-96A	BG-96B	BG-95
Chemical Composition	SiO2	%	≥96.0	≥96.0	≥95.0
	Fe2O3	%	≤0.5	≤0.8	≤1.0
	Al2O3+2(K2O+Na2O)	%	≤0.5	≤0.7	-
True Density		g/cm^3	≤2.33	≤2.33	≤2.33
Apparent Porosity		%	≤21	≤22	≤22
Cold Crushing Strength		Mpa	≥45	≥45	≥45
Refractoriness Under Load	T0.5	ºC	≥1690	≥1680	≥1670
Permanent Linear Change	1450ºC*2h	%	0-0.2	0-0.2	0-0.2
Residual Quartz		%	≤1	≤1	≤1

New Type Non-lime Bonded Silica Brick for Glass Kiln

Item			Value
Chemical Composition (%)	SiO2		≥99.0
	Al2O3		≤0.2
	Fe2O3		≤0.1
	CaO		≤0.1
Bulk Density (g/cm^3)			≥1.88
Apparent Porosity (%)			≤16
Cold Crushing Strength (MPa)			≥40
Refractoriness Under Load (ºC)		T0.6	≥1690