Properties \ Material

Unit

Equivalent to DIN EN 60672

C-220

Main Ingredients\Composition

SiO 2%Al2O 3%MgO %

50-20

Physical Properties

Colour

Off White

Specific Gravity

2.5

Water Absorption

%

0

Flexural Strength

KG/CM2

1200

Compressive Strength

KG/CM2

2500

Young's Modulus

KG/CM2 x 106

0.8

Hardness

Moh's

6 - 7

Thermal Properties

Co-efficient of Thermal Expantion(30-600 degree celsius)

10-6/°K

4 - 7

Thermal Shock Resistance Down Shock T

°C

190

Thermal Conductivity

W / M°K

2 - 3

Max. Temp. Withstanding Capacity

°C

500

Electrical Properties

Dielectric Strength (20C)

KV / mm

10

Dielectric Contant (20C : : 1MHz)

5.5

Volume Resistivity (20C)

Ohm-cm

1011

Application

MCB Plates Beads.