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anshan technical import & export co.,ltd
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Magnesia Products,Magnesia Carbon Brick,Magnesi Chrome Brick |
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 Click to enlarge image
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General Magnesia Products
These bricks have the characteristic of high refractoriness, high basic slag resistance, and good thermal conductivity and etc.
Burned magnesia bricks are mainly used in basic open hearth furnace, holding furnace and the bottom and side-wall of electric furnace, bottom of heating furnace, inner lining of alkline-making furnace in paper-making factory and etc.
Magnesia alumina bricks are mainly used as lining for 1600℃ thermal equipment such as basic open hearth furnace roof, non-ferrous smelting and reflecting furnace roof and etc.
Magnesia chrome bricks are used in ferrous smelting furnace, cement rotary kiln and heat accumulating chamber of glass-making kiln and etc.
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Specification
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Magnesia Brick
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Middle grade Magnesia Brick
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High purity Magnesia Brick
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Electric fused Magnesite Brick
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MZ-89
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MZ-91
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MZ-95
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MZ-96
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MZ-97
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MZ-98
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DMZ-98
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MgO (%) ≥
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89
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91
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94.5
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95.5
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96.5
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97.5
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97
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CaO (%) ≤
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3
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3
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2.5
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2
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2
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1.5
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1.5
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Apparent porosity
(%)≤
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20
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18
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18
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18
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18
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18
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18
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Cold Crushing Strength
(MPa)≥
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49
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58.8
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60
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60
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60
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60
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40
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0.2Mpa
Initial Soften Point Under Load(℃) ≥
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1540
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1550
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1620
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1650
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1680
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1700
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1700
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Permanent Linear change on reheating(%)
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-0.6
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-0.5
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Magnesia Carbon Brick
It is pressed under a high pressure using electric fused magnesite with MgO97% and MgO98%,as well as high purity graphite as its raw material, phenolic resin with good quality as bonder, with a fine high temperature strength and a quite good antioxidation.
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牌 号
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MgO(%)≥
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C(%)≥
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Bulk density(g/cm3)≥
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Apparent porosity≤(%)
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cold crushing strength≥(Mpa)
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modulus of rupture(1400oCX0.5h)≥(Mpa)
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MC-10A
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82
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10
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3.00
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3
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45
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10
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MC-10B
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80
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10
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2.95
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4
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40
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8
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MC-10C
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78
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10
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2.90
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4
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35
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6
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MC-14A
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78
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14
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3.00
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3
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45
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14
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MC-14B
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76
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14
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2.95
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4
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40
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10
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MC-14C
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74
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14
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2.90
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4
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35
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8
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MC-18A
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74
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18
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3.00
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3
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45
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12
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MC-18B
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72
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18
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2.95
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4
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40
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10
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MC-18C
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70
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18
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2.90
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4
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35
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8
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**********************************************
Magnesi Chrome Brick
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Specification
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General MgO-Cr2O3 Brick
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MG-4
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MG-8
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MG-12
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MG-16
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MG-20
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MgO (%) ≥
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70
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65
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60
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50
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42
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Cr2O3 (%) ≤
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4
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8
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12
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16
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20
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Apparent Porosity (%) ≤
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20
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20
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20
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19
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19
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Cold Crushing Strength(MPa)≥
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35
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35
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35
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35
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35
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Initial Soften Point
Under load (℃) ≥
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1560
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1580
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1580
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1610
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1640
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Resistance to thermal
shock (Time) ≥
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5
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5
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5
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5
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5
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Specification
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Direct Bonded MgO-Cr2O3 Brick
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ZMG-4
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ZMG-8
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ZMG-12
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ZMG-16
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ZMG-20
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MgO (%)≥
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75
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70
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65
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60
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55
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Cr2O3 (%)≥
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4
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8
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12
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16
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20
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SiO2 (%)≤
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2.5
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2.0
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1.5
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1.5
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1.2
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Apparent Porosity (%)≤
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18
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18
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18
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18
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18
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Cold Crushing Strength(MPa)≥
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45
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45
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45
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40
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35
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Initial Soften Point
Under load (℃)≥
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1650
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1650
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1680
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1700
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1700
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Resistance to thermal
shock (Time)≥
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6
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6
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6
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6
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6
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Specification
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Rebonded MgO-Cr2O3 Brick
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Semi-Rebonded MgO-Cr2O3 Brick
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ZJMG-8
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ZJMG-12
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ZJMG-16
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ZJMG-20
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ZJMG-4
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ZJMG-8
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ZJMG-12
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ZJMG-16
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ZJMG-20
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MgO (%)≥
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75
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66
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58
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55
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80
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75
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65
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58
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50
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Cr2O3 (%)≥
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8
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12
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16
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20
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4
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8
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12
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16
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20
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SiO2 (%)≤
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1.5
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1.5
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1.5
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1.2
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1.5
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1.5
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1.5
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1.5
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1.2
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Apparent Porosity (%)≤
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18
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18
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18
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18
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18
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18
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18
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18
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18
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Cold Crushing Strength(MPa)≥
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50
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50
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45
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40
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40
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40
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40
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35
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35
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Initial Soften Point Under load(℃)≥
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1700
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1700
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1700
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1700
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1700
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1700
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1700
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1700
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1700
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