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   Product Monoblock Stopper

 

Classified by materials, our monoblock stoppers can be grouped into Alumina-Carbon, Alumina-Zirconia-Carbon, Alumina-Magnesia-Carbon sistance to the slag、corrosion、rupture and erosion, it ensure reliable during operating procedure.

product photo


Specification

Kind

Al2O3-ZrO2, Al2O3-C

MgO-C

ZrO2-C

Properties

Bulk Density (g/cm3)

3.17

3.12

3.14

3.33

3.24

3.13

3.1

3.1

4.8

Apparent Porosity (%)

5.5

5

4.5

4

4

5.5

8.5

5

15.5

Cold Crushing Strength (Mpa)

240

230

280

280

300

150

120

210

100

Chemical
Composition (%)

Al2O3

79

70

71

75

74

95

95

10

---

ZrO2

6

10

13

9

8

---

---

(MgO 89)

95

F.C

9

12

10

7

10

4

4

4

2

Hot modulus of rupture (Mpa)
at 1400℃

23

25

28

21

25

35

45

44

---

Thermal expansion (%)
at 1500℃

1.05

0.99

0.96

1.01

1.01

1.3

1.2

1.98

1.03

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