Mullite Insulating Refractory Bricks, Insulation Fire Brick

• Customization: Available
• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Model NO.: WAM23, WAM26, WAM28, WAM30, WAM32
• Type: Heat-Resistant Material
• Shape: Brick
• Material: Alumina Block
• Size: According to The Drawings
• Transport Package: Wooden Pallets
• Specification: SGS
• Trademark: WAM
• Origin: China
• HS Code: 69022000
• Production Capacity: 8, 000, 000 PCS Standard Bricks

Product Description

Mullite insulating bricks characteristics and advantages:
1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling      cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after sintering, which meets the requirement of construction.
5. Max service temp: Up to 1730C (3160F)

Index /brand		WAM-23	WAM-26	WAM-28	WAM-30	WAM-32
Classification temperature/º C		1260	1430	1540	1650	1760
Bulk density    g/cm 3		0.58	0.80	0.89	1.03	1.25
Moudulus of rupture MPa		0.9	1.3	1.5	1.7	2.0
Cold crushing strength    MPa		1.2	1.9	2.6	2.8	3.4
Permanent Liner Change    %  C xHr		-0.1	-0.5	-0.8	-0.9	-0.9
		1230X24	1400x24	1510x24	1620x24	1730x24
Thermal conductivity (W/m. k)	400 C	0.17	0.24	0.30	0.40	0.49
	600 C	0.19	0.27	0.32	0.42	0.50
	800 C	0.22	0.30	0.35	0.44	0.51
	1000 C	0.25	0.32	0.38	0.45	0.53
	1200 C		0.35	0.39	0.47	0.55
Al2O3 %		45	55	65	72	76
Fe2O3 %		0.7	0.8	0.7	0.5	0.4
SiO2 %		50	42	33	26	22
TiO2 %		1.2	1.3	0.9	0.5	0.3
CaO+ MgO  %		0.7	0.6	0.2	0.3	0.2
K2O+ Na2O %		1.3	1.1	0.8	0.2	0.1