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High Density Boards

High Density Boards
High Density Boards
Product Code : 18
Price And Quantity
  • Price
  • 2100
Product Specifications
  • Product Type
  • Syndhania Sheet
  • Thickness
  • 3 mm to 100 mm Millimeter (mm)
  • Density
  • 1.95
  • Strength
  • High Density Boards
  • Size
  • 1075 mm x 1225 mm
Product Description

Established in the year 1918, we have attained position as a renowned trader and exporter of premium quality High Density Boards. These boards are designed and manufactured by our vendors utilizing selected raw asbestos fibre and cement. Our vendors test the whole range of these boards on a series of quality parameters prior to dispatch it from their end. Offered High Density Boards are available in various shapes and dimensions as per the specific requirements of clients.

Features:

  • Durable finish standards

  • Compact design

  • Light weight

  • Stiffness


DISTINCTIVE PROPERTIES

High Density Boards are versatile materials which combine the following distinctive properties not available in any other individual material:
  • Good thermal stability at high temperatures
  • Low contact thermal shock thus eliminating fracture in items like glass components
  • Low thermal conductivity
  • High temperature resistance
  • Good anti-tracking properties
  • High arc resistance
  • Ability to withstand high frequencies
  • High strength even at high temperatures
  • Extremely hardwearing leading to long product life cycle.
  • Easy machineable without splitting or chipping
  • Easy fixing by fasteners or adhesives
  • Suitability as fire check barriers
  • Good alkali resistance
  • Non metallic thus controlling problem of induced currents
  • Availability in high thickness blocks of up to 100 mm leading to convenient manufacturing of components
  • Non-rusting
APPLICATIONS

The distinctive properties of High Density Boards lead to their applications in numerous diverse areas. Some of these applications are:
  • In Arc chutes and deflector plates on air-break circuit breakers, contactors and fuse gear
  • As spacer strips and end packing blocks in distribution transformers
  • For the control and extinction of electric arcs
  • For handling and transferring hot glass components in the moulding areas, conveyor systems and annealing lehrs
  • For manufacture of jigs, dies, moulds, guides, buffer strips, tubes, rods and other machined components
  • As core plates in foundries and in furnaces
  • For insulation of heated plattens in presses
  • For insulation of coils, as top plate or support blocks in induction furnaces
  • As guide strips or splash boards in handling of molten metals on hot castings
  • For transportation of hot metal and pot line insulation in the aluminium industry
  • As fire barriers or fire check doors
Mechanical Properties

Property


   Unit

                  Nominal thickness(mm)

3.0-5.0                      6.4-12.5                       over 12.5

Density

(Nominal)

gms/cc

1.95

1.95

1.95

Tensile Strength

( min. )

kgf/cm2

200

190

180

Shear Strength

( min. )

kgf/cm2

400

380

350

Flexural Strength

( min. )

kgf/cm2

450

410

350

Ultimate Crushing Strength 

( min. )

kgf/cm2

1500

1400

1250

Compression Yield 

( max. )

%

5

4

3.5

Water Absorption

( max. )

%

15

14

13


Electrical Properties

Property

   Unit

                  Nominal thickness(mm)

3.0-5.0                      6.4-12.5                over 12.5

Dielectric Strength in Air@90oC  (min.)

kV/mm

1.7

1

0.8

Surface Breakdown in Air@ 90oC (min.)

kV

>10

>10

>10







Thermal Properties

Property

   Unit

                  Nominal thickness(mm)

3.0-5.0                      6.4-12.5                over 12.5

Carbon Arc Test

Secs.

120

120

120

Spirit Burner Test

                                          DOES NOT IGNITE

Thermal Conductivity

kcal/mh oC

0.6

0.6

0.6

Continuous Temp. Usage

 oC

350

350

350

Trade Information
  • Payment Terms
  • Cash on Delivery (COD), Cash in Advance (CID), Cheque

J. KHUSHALDAS & CO.

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