Jay's Refractory

Home Page > WDS® > WDS® Lambdaflex®

$Jays Refractory Specialists$



WDS® Lambdaflex® is a microporous insulation material with an extremely low coefficient of thermal conductivity. WDS® Lambdaflex® consists of inorganic silicates. The main constituent is fumed silica, the other components are opacifiers for minimising infrared radiation. Application Tried and tested applications for WDS® Lambdaflex® include insulation for heat-treatment furnaces in the aluminum industry, or back-up insulation in the industrial furnace industry. In these applications, WDS® Lambdaflex® fulfills several functions, such as: Precisely controlled energy emission Reduction of weight and volume Increase of heat retention Increased effective volume
1
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------1

Typical Analysis - WDS® Lambdaflex®

PHYSICAL PROPERTIES	COMMENTS		STANDARDS	UNITS	VALUES
Colour	without film: White				White
Bulk Density				kg / m³	300 - 430
Thermal Conductivity	At mean temp. of 20ºC and approx. 350 kg/ m³		DIN 51046	W / mK	< 0.021
Heat Resistance	Core Material			ºC	1000
Low-Temp. Compression Strength			DIN 51067	N / mm²	1.3
			DIN 53421
Refractories under load	load 0.05 N / mm²		ASTM C 832
		200ºC		%	-0.26
		400ºC		%	-0.35
		600ºC		%	-0.59
		800ºC		%	-2.47

Shrinkage	1000ºC / 12h, temperature applied to one side			%	0.6

Compression (density = 350kg/ m³				400ºC	800ºC
	1%			0.028 MPa	0.028 MPa
	3%			0.083 MPa	0.110 MPa
	5%			0.144 MPa	0.165 MPa
	10%			0.295 MPa	0.350 MPa

Linear Shrinkage / Long Term	Temperature applied to all sides
		950ºC		%	1.9
		1000ºC		%	4.8
		1050ºC		%	10.5

Specific Heat Capacity	RT up to 800ºC			KJ / kgK	0.8
Thermal Conductivity			DIN 51046
		20ºC		W / mK	0.021
		200ºC		W / mK	0.023
		400ºC		W / mK	0.028
		600ºC		W / mK	0.034
		800ºC		W / mK	0.042

THERMAL CONDUCTIVITY OF WDS® LAMBDAFLEX® as a function of mean temperature (DIN 52612)		FURTHER APPLICATIONS successfully used as insulation material in:

		Heat treatment systems for metals Heat treatment systems for glass Fire protection equipment Electronic devices Measurement equipment Plant construction parts Parts in the automotive industry Chimneys, pipes and diesel exhaust systems.

WDS® Product Range

WDS® Ultra
WDS® Lambdaflex®
WDS® Flexipor®
WDS® Pad

Should you have any questions concerning the above, or for purchasing details please don't hesitate to contact us.

Telephone: 01246 410241
Click here to email us


	Download Datasheet
	LAMBDAFLEX	87Kb
	LAMBDAFLEX SUPER	86Kb
	FLEXIPOR	54Kb