Cardboard

Products in the form of cardboard are rectangular-shaped solid thin or flexible sheets with fibrous structure.
They are based on the use of mullite-siliceous fibers and non- or organic binders.
To enhance cardboard being proof to erosion, its surface may undergo additional treatment.

Cardboard characteristics:

• low density and thermal conductivity, high thermal resistance and considerable mechanical endurance
• Made from materials and components that don`t pose any threat to health and don`t emit any harmful fumes or substances when in use
• Easy to install by means of hand tools
• Products with organic binders are flexible and resilient enough to be installed

Mark

KV-450

KV-500

KV-550

KVP-450

KVP-500

KVP-550

Density, kg/m3

430-470

480-520

530-570

430-470

480-520

530-570

Max. usage temperature, 0С

1200

1350

Thermal conductivity,
W/mK, not more, at 600 0С

0,17

0,16

0,18

0,17

0,17

0,16

800 0С

0,23

0,22

0,23

0,22

0,23

0,20

1000 0С

0,31

0,29

0,32

0,30

0,31

0,24

1200 0С

-

-

-

-

0,41

0,44

1300 0С

-

-

-

-

0,50

0,52

Shrinkage at 1273 K, %, not more

Mass proportion of Al2O3,
%, not less

51

48

Mass proportion of Cr2O3
%, not less

-

2 ÷ 4

Dimension of the roll, mm.

500; 600;

Width, B
Length, L
Thickness, H

500; 600; 750

from 2 to 10