Product Details

Long nozzle for continous casting steel

Place of Origin Henan, China
Shape Pipe
Material Other, Al2O3, ZrO2, MgO
SiO2 Content (%) --
Al2O3 Content (%) ≥46%
MgO Content (%) ≥75%
CaO Content (%) --
Refractoriness (Degree) Common (1580°< Refractoriness< 1770°)
CrO Content (%) --
SiC Content (%) ≥25%
Model Number CLT-A
Brand Name Huanxin

Product Features

Refractory long nozzle plays an important role in protecting the molten steel from air oxidation when it flows from the tundish to the mold. It also averagely distributes steel into the mold and control the steel's fluid state in the mold. SM series of SEN features good thermal shock resistance, stability, corrosion resistance and anti-mechanical fracture. Every batch of products have passed rigorous NDT X-ray test before launching into the market.

 

 

 

     Product                

 

Items

AL-C Stopper

Mg Stopper

Turdish Nozzle

Long Nozzle

Subermaged Nozzle

Body

head

Body

head

Body

Slag Line

Al2O3 (%)

60.7-

63.6

70.3-

71.5

60.7-

63.6

6.0-

7.2

63.3-67.8

63.6-65.9

58.2-

63.2

-

C+SiC       (%)

23.2-

26.3

15.8-

16.2

23.2-

26.3

11.5-

12.3

21.1-23.5

33.4-36.1

26.7-

29.2

15.2-

16.0

ZrO2+CaO    (%)

≥2.5

5.4-

5.8

≥2.5

≥5

-

-

-

72.0-

75.0

MgO         %

-

-

-

67.3-

68.0

-

-

-

-

Apparent Porosity        ( %)    ≥

15

17

15

13

14.6

16

16.2

12

Bulk Density        (g/cm) 

2.65

 

2.65

2.7

2.56

2.51

2.45

3.5

Thermal Shock Resistance

(1100°C)(times)≥        

5

5

5

5

5

5

5

5

Cold Crushing Strength     (Mpa)         ≥

21

16

21

20

19

18

19

19

Modulus of Rupture         (Mpa)         ≥

5

5

5

5

5

5.5

5

5

 

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