Class B Vermiculite Heat insulation & Heat resistance board

Product introduction	Class B vermiculite board has better strength & higher service temperature than class A. The minimum thickness can reaches 7mm. This product is the most commonly used widely in industrial area.
Characteristic	According to class A vermiculite heat insulation board
Application	（１）According to class A heat insulation board （２）Backup material for industrial furnace, heat insulation material for burning machine （３）Heat insulation material for fuel charger （４）Backup material for tunnel kiln, blast furnace, tube firing table （５）Heat insulation material for steel making machine （６）Heat insulation board for aluminum melting furnace （7）Heat insulation board for glass melting furnace

Physical Index

Model Number			B1	B2	B3
Grade:			V1150-700	V1150-800	V1150-900
Item	Max. Service Temperature:（℃）		1150	1150	1150
	Bulk Density:kg/m3		700	800	900
	Cold Crushing Strength:【EN 1094-5:1995】MPa		4.6	6.0	6.5
	Hot Crushing Strength:（MPa）@750℃		3.5	4.5	5.0
	Modulus of Rupture:【EN 993-6:1995】(MPa)		2.0	2.5	3.0
	Apparent Porosity: (%)		78	70	65
	Linear Reheat Shrinkage:【EN 1094-6:1999】（%）24H@900℃		0.6≧	0.6≧	0.6≧
	Thermal Expansion:【BS 1902: section 5.3:1990】(K-1)@ 20 to 800℃		10.8x10-6	10.8x10-6	10.8x10-6
	hermal Conductivity【W/(m・K)】	@200℃	0.131	0.141	0.146
		@400℃	0.151	0.165	0.171
		@600℃	0.179	0.188	0.193
		@800℃	0.181	0.197	0.198
	Chemical Analysis	SiO2	41.2
		Al2O3	12.68
		Fe2O3	4.06
		TiO2	1.33
		MgO	24.22
		CaO	0.96 8.97
		K2O
		Na2O	0.60
	Loss on Ignition  (%)		6.5
Dimension	* Max Length=1200mm、Max Width=1000mm、Min Thickness=10mm、Max Thickness=100mm、Density=400～1200kg/m3 ＊Can design various shapes according to customer requirements ＊Kindly understand that irregular board will cost a model charge. ※Can be machined into different shape and cut into different size according to customer requirements。

※Note: Above test results are average results of tests conducted under standard procedures and subject to variation. Results should not be used for specification purposes.

Sales office:TEL+86-755-2318-7516          FAX +86-755-2698-8156-202

pang@vermiculite.com.cn                   hana@vermiculite.com.cn