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Magnesium Carbon Brick

Magnesia carbon brick is a high melting point basic oxide Magnesium Oxide (melting point 2800 C) and high melting point carbon material which is difficult to be embellish by the slag as the raw material, adding a variety of non oxide additives.

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Magnesia carbon brick

Introduction

Magnesia carbon brick is a high melting point basic oxide Magnesium Oxide (melting point 2800 ℃  ) and high melting point carbon material which is difficult to be embellish by the slag as the raw material, adding a variety of non oxide additives. Non carbonaceous composite refractories made from carbon binder. Magnesia carbon bricks are mainly used for lining of converter, AC arc furnace, DC electric arc furnace, slag line of ladle and so on.

As a composite refractory, magnesia carbon brick has effectively used the strong slag erosion ability of magnesia and high thermal conductivity and low expansibility of carbon, which compensates the biggest disadvantage of poor exfoliability of magnesia.

Its main characteristics are: good heat resistance, strong slag resistance, good thermal shock resistance and low creep at high temperature.


Specification

Magnesia Carbon Brick Technical Criteria


                        Types 



Item

Magnesia Carbon Brick

MT10

MT14

MT18

C=7%

S.V

TY.V

S.V

TY.V

S.V

TY.V

S.V

TY.V

(g/cm3)
     Bulk Density

≥2.90

3.02

≥2.90

2.96

≥2.90

2.95

≥3.00

3.10

(MPa)
     Cold Crushing Sterength

≥40

45

≥40

45

≥40

43

≥40

45

(%) Apparent Porosity

≤4

3.0

≤4

3.0

≤3

3.0

≤5

4.7

(MPa)1400℃ 30min Mosulus og Rupture at Elevatedtemperature

≥6

15.2

≥12

13.8

≥10

13.5



(%)
Chemical Composition

 

MgO

≥80

81

≥76

77.8

≥72

74.5

≥80

83.2

C

≥10

11.6

≥14

14.9

≥18

18.8

≤7

6.5

P.S.: The size and shape of the brick can be produced as your requirements.


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