S. NO.

Properties

Unit

Typical Values

Guaranteed Mean

Test Method

1

Bulk Density

g/cc

1.65

≥1.62

YB/T119

2

Ash Content

%

19

GB/T 1429

3

Apparent Porosity

%

14.5

≤16

YB/T 908

4

Cold Crushing Strength

Mpa

47

≥35

GB/T 1431

5

Thermal Conductivity at 200

400

600

w/mk

10.5

13.8

14.4

≥12

YB/T 5291

6

Alkali Resistance

U .

U or LC

YB/T 5213

7

Modulus of Rupture

Mpa

12.5

8

Permanent Linear Change (2hr at 1500)

%

+0.05

9

Mean Pore Diameter

µm

0.2

YB/T 118

10

Volume of Pore Dia. <1µm

%

78

YB/T 118

11

Permeability

Mda

5

GB/T 9973

12

Index of Dissolution due to Hot Metal

%

26.8

YB/T 4036

Main Application:  Hearth Bottom and Ring Wall