Designation

Ash content

Specific resistance

Volatile component

Compressive strength

Bulk density

Real density

Penetration (20°C)index

BSZH

7

73

7-11

17

1.44

1.87

-

BSTH

7

73

8-12

18

1.42

1.86

-

BSGH

4

73

9-13

25

1.44

1.87

-

BSTN

5

-

≤50

-

-

450-650

PTRD

10

75

9-12

18

1.40

1.84

-

PTLD-1

12

95

≤12

18

1.42

1.84

-

PTLD-2

10

90

≤10

20

1.42

1.84

-

Classification

Designation

Name

Used in

Construction temperature

Group I

BSZH

Semi-graphitic
Side Paste

To fill the slit between bottom and side carbon block as well as wide slit among refractory bricks etc.

110±10

BSTH

Semi-graphitic Inter-block Paste

To fill the slit among carbon blocks

110±10

BSGH

Semi-graphitic Steel Stick Paste

To fill the slit between cathode steel stick and carbon block

110±10

BSTH

Semi-graphitic Carbon Clay

To fill small slit among side carbon blocks

110±10

Group II

PTRD

Ordinary Hot Ram Paste

To fill the slit among carbon blocks

130-140

Group III

PTLD-1

Ordinary Hot Ram Paste

Used for the cushion layer of electrolytic bath, to fill the slit among carbon blocks and between carbon blocks and furnace mantle, or slot liner of small electrolytic bath

25-50

PTLD-2

Ordinary Hot Ram Paste

used for filling the slit of dovetail groove of electrolytic bath

25-50

Note