Refractories for steel industry

Aluminum based containing zircon materials

TU U 26.2-00191738-003:2006(change №1)

Designed to link zirconium products in refractory brickwork.

Indicator name

Norm for a brand product

MDC

MC

MCM-1

MCM-2

Mass fraction, %:

ZrO2+HfO2, not less

Al2O3, no more

SiO2, no more


90

2,5

-


61

3,6

-


18

65

16


30

not less 36

28

Weight change when calcinating, %, no more

0,5

1

-

-

Humidity, %, no more

5,0

3,0

3,0

3,0

Fire resistance, 0С, not below

1750

1750

1750

1750

Grain structure, %:

Pass through a grid

№ 0063, not less

№05, not less



99



99



50

100



50

100

Manufacturing of mertel of other grain structure is allowed in coordination of the manufacturer and the consumer.

 

Products the zirconic high-fire-resistant

TU U 26.2-00191738-004:2006 (change № 1)

For lining of electric furnaces of continuous action are intended for dispensing of a stream of metal from an intermediate ladle in a crystallizer.

Indicator name

Norm for a brand product

CRR-1

CRR-2

CRK

Mass fraction, %:

ZrO2+HfO2, not less

СаО, no more

SiO2, no more

Al2O3, no more


92

2,0

-

0,1


80

-

15

1,0


90

-

5

2

Porosity open, %, no more

13

15

16

The seeming density, g/cm3 *)

4,3

4,0

4,0

Fire resistance, 0С, not below

1800

1800

1800

Strength at compression, N/mm2, not less

-

-

100

Note: *) value of the seeming density is given facultatively.

 

The products zirconium high-fire-resistant shaped for a laying of furnaces of melting and endurance of aluminum

TU U 26.2-00190503-245-2004 (change № 1)

Are intended for a laying of furnaces of melting and endurance of aluminum (in places of input, a modulation and metal delivery) and other places of application.

Indicator name

Norm for CR brand

Mass fraction of ZrO2, %, not less

60

Mass fraction of Al2O3, %, no more

3,6

Strength at compression, N/mm2, not less

50

Porosity open, %, no more

24

 

Products fire-resistant and high-fire-resistant for continuous casting became

TU U 322–7–00190503–110-97 (change №№ 1-3)

It is applied to a dosage of a stream of metal from an intermediate ladle in a crystallizer.


Indicator name

Norm for prod. CRA brands

Mass fraction of ZrO2, %, not less

60

Mass fraction of Al2O3, %, no more

4,5

Fire resistance, 0C, not below

1760

Porosity open, %, no more

20

 

Fillers and mixes quartzitic for fire-resistant concrete and acidproof mixes

TU U 00191879-03-2000

Are applied to preparation quartzite - clay mixes, for production of concrete blocks and monolithic lining.

Indicator name

Norm for brand SKM-97

Norm for brand SKM-99

Mass fraction, %:

SiO2, not less

Al2O3, no more

Fe2O3, no more


97

1,6

0,6


99

0,25

0,15

Grain structure, %:

- pass through a grid № 3,2, in limits

- pass through a grid № 05, in limits

- pass through a grid № 009, not less


95-100

40-50

20


95-100

40-50

20

Manufacturing of a mix of other grain structure is allowed in coordination of the manufacturer and the consumer.

 
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