Lightweight Insulating Fire Bricks for Refractory

• Refractoriness (℃): 1200~1700
• Feature: Long Time Materials, Instant Materials
• Type: Refractory Material
• Shape: Brick
• Material: Brick
• Model NO.: WH-23

Product Description

 Introduction
WH and WA series of Lightweight Insulating Fire bricks using ASTM standard,Compared with general firebrick, Its light weight, internal distribution have tiny closed porosity, high porosity,Therefore, less heat loss, energy saving; At the same time accumulation amount is smaller, so the heating and cooling faster, Suitable for rapid periodic use, The series of products applicable to 900 ~ 1700 ºC temperature range.
series of Firebrick for B,C Products, are in accordance with JIS Industrial Standard of JAPAN,. Products are lightweight, low iron content, low reheat shrinkage and atmosphere corrosion resistance and other excellent features. The series of products applicable to 900 ~ 1350 ºC temperature range
Characteristics
Low thermal conductivity, Good insulation 
Low thermal capacity, Elevating temperature fast
Low content of impurities, Good performance under reducing atmosphere
High strength, resistance to thermal shock,
High dimensional precision 
Can be processed into special shape, to reduce the number of brick and Joint
 Typical Applications
Various industrial furnace hot face refractoriness and back lining heat insulating layer
The melting furnace, burning kiln, the flue
Producer gas generator and pipeline, refining device
Heating device, annealing furnace, the soaking furnace
Reducing atmosphere furnace

WH & WA series of performance index

Product Code		WH-23	WH-23	WH-26	WH-28	WH-30	WH-32	WA-96	WA-98
Classification Temp. (ºC)		1260	1260	1400	1500	1550	1600	1650	1700
room properties (26ºC, relative humidity 50%)
Density(kg/ m^3)		550	800	800	900	1000	1100	1350	1500
Modulus of Rupture (ASTM C93,Mpa)		0.9	1.2	1.3	1.6	1.8	2.1	3.4	3.8
Compressive Strength (ASTM C93,Mpa)		1.2	1.8	1.8	2.5	2.8	3.0	8.6	9.4
High Temp Performance
Thermal Conductivity Kcal/mhºC(W/m K), (ASTM C-182 average temperature as follow)
600ºC		0.16	0.28	0.29	0.34	0.41	0.51
800ºC		0.19	0.30	0.32	0.36	0.42	0.53
1000ºC		0.21	0.33	0.35	0.38	0.43	0.55	0.64	0.72
1200ºC				0.37	0.40	0.45	0.58	0.67	0.76
Liner Shrinkage after Firing % (JIS R2613) (ºC×8h)		-0.3(1300)	-0.4(1400)	-0.4(1400)	-0.6(1500)	-0.6(1550)	-0.6(1600)	-0.4(1650)	-0.3(1700)
Thermal Expansion(Maximum) (JIS R2617,ºC)		0.45(1000)	0.45(1000)	0.45(1000)	0.47(1000)	0.47(1000)	0.48(1000)	0.51(1000)	0.54(1000)
Chemical Composition(%)	AI2O3	40	40	54	62	74	80	96	98
	Fe2O3	1.2	1.2	0.9	0.8	0.7	0.5	0.4	0.4
Recommended WH Mortar		WM1300	1.2	WM1400	WM1400	WM1500	WM1500	WM1700	WM1700