Class A Vermiculite Heat insulation & Heat resistance irregular block

Product Introduction	Class A vermiculite heat resistance & insulation brick belongs to light weight inorganic mineral material, has excellent heat resistance & insulation property. It can reduce the heat loss through furnace wall, accelerate the furnace heating speed, decrease the heating time and save the fuel cost.
Characteristic	（１）   High heat insulation property （２）   High heat resistance property （３）   Light weight, easy to process & operation （４）   Drug tolerance, anti-corrosion （５）   Thermal shock resistance （６）   Little shrinkage and stable dimension in repeat heating, for making of expanded vermiculite with high temperature firing （７）   Excellent processing ability
Application	（１）   A1~A3 products can be applied directly to hot side of low temperature ovens, drying ovens etc. （２）   A1~A3 products can be applied at the back side of refractory material in various high temperature industrial furnaces. It best fit for combined use with high temperature refractory insulation brick （３）   Backup insulation material for industrial stoves （４）   Widely used as heat insulation board for furnace, kilns, pizza ovens, hot compression furnace, heating induction furnace etc
Dimension	*Standard Size: L230*W114*T45mm; Density 400~1200 kg/m3 ＊Except standard size, we can offer OEM for customer requirement, but it will produce model charge, pls kindly understand.

Physical Index

Model Number			A1			A2		A3
Grade:			V1000-400			V1100-500		V1100-600
Item	Max. Service Temperature:（℃）		1000			1100		1100
	Bulk Density:kg/m3		400			500		600
	Cold Crushing Strength:【EN 1094-5:1995】MPa		1.5			2.5		3.5
	Hot Crushing Strength:（MPa）@750℃		1.0			2.0		2.5
	Modulus of Rupture:【EN 993-6:1995】(MPa)		0.5			0.8		1.6
	Apparent Porosity: (%)		80			75		70
	Linear Reheat Shrinkage:【EN 1094-6:1999】（%）24H@900℃		≤1			≤1		≤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℃		0.094	0.127		0.129
		@400℃		0.122	0.144		0.148
		@600℃		0.145	0.173		0.176
		@800℃		0.153	0.178		0.181
	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 into 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