Röchling Lignostone® Transformerwood® LII/2-E3 Laminated densified wood

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Röchling Lignostone® Transformerwood® LII/2-E3 Laminated densified wood
Categories:	Polymer; Thermoset; Wood and Natural Products; Wood
Material Notes:	Lignostone® Transformerwood® is a laminated densified wood according to IEC 61061. It consists of red beech veneers, which are joined together with thermosetting synthetic resins under high pressure and heat. Lignostone® Transformerwood® has the following properties: Good electrical insulation properties High mechanical strength at low specific density Easy and fast to dry Very good oil absorption Information provided by Röchling.
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Physical Properties	Metric	English	Comments

Density	0.950 g/cc	0.0343 lb/in³	IEC 61061
Oil Absorption	25 %	25 %	IEC 601061
Moisture Absorption	5.00 %	5.00 %	IEC 601061

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	9.00 GPa	1310 ksi	Perpendicular, 500x20x20 mm, Support distance: 320 mm; DIN EN ISO 178
Flexural Strength	110 MPa	16000 psi	Perpendicular, 500x20x20 mm, Support distance: 320 mm; DIN EN ISO 178
Compressive Strength	70.0 MPa	10200 psi	Parallel, 10x10x10 mm; DIN EN ISO 604
	200 MPa	29000 psi	Perpendicular, 10x10x10 mm; DIN EN ISO 604

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm	IEC 60093
Dielectric Constant	3.7	3.7	100x100x10 mm, oil impregnated; IEC 60250
Dielectric Strength	2.76 kV/mm @Thickness 25.0 mm, Temperature 90.0 °C	70.0 kV/in @Thickness 0.984 in, Temperature 194 °F	Perpendicular, SQ; IEC 600243
	3.15 kV/mm @Thickness 25.0 mm, Temperature 90.0 °C	80.0 kV/in @Thickness 0.984 in, Temperature 194 °F	Perpendicular, HQ; IEC 600243
	3.54 kV/mm @Thickness 25.0 mm, Temperature 90.0 °C	90.0 kV/in @Thickness 0.984 in, Temperature 194 °F	Perpendicular, TQ; IEC 600243
	15.0 kV/mm @Thickness 76.2 mm, Temperature 90.0 °C	381 kV/in @Thickness 3.00 in, Temperature 194 °F	Perpendicular, SQ; IEC 600243
	16.7 kV/mm @Thickness 76.2 mm, Temperature 90.0 °C	424 kV/in @Thickness 3.00 in, Temperature 194 °F	Perpendicular, HQ; IEC 600243
	18.3 kV/mm @Thickness 76.2 mm, Temperature 90.0 °C	465 kV/in @Thickness 3.00 in, Temperature 194 °F	Perpendicular, TQ; IEC 600243
Dissipation Factor	0.010 @Frequency 50 Hz	0.010 @Frequency 50 Hz	100x100x10 mm, oil impregnated; IEC 60250

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	105 °C	221 °F	DIN 7707

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PROCH9114 / 232817

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