MgO-Al₂O₃-CARBON BRICKS |
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DESCRIPTION: Magnesia-Alumina-carbon brick, resin bonded, tempered, made from fused magnesia ,Fusedcorundum, bauxite,and flake graphite. MAIN APPLICATION: Sidewall and Bottom of steel treatment ladles, increased flexibility by spinel formation and therefore reduced slag infiltration and high thermal shock resistance. |
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DH-MAC60/20-10A |
DH-MAC60/20-10B |
DH-MAC65/20-10A |
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CHEMICAL ANALYSIS |
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MgO ,% |
> 60 |
> 60 |
> 65 |
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Al₂O₃ ,% |
> 20 |
> 20 |
> 20 |
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Residual Carbon ,% |
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firing in red.atm.at 1000℃ |
> 10 |
> 10 |
> 10 |
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PHYSICAL DATA |
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As delivered: |
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Bulk density ,g/cm³ |
2.95-3.05 | 2.95-3.05 | 3.00-3.10 | |||
Apparent porosity ,% |
< 6.0 |
< 7.0 |
< 5.0 |
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Cold crushing strength ,Mpa |
> 40 | > 40 | > 40 | |||
After coking 1000℃: |
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Bulk density ,g/cm³ |
2.88-2.98 | 2.88-2.98 | 2.92-3.02 | |||
Apparent porosity ,% |
< 13 | < 13 | < 12 | |||
Cold crushing strength ,Mpa |
> 25 | > 25 | > 25 |
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DH-MAC65/20-10B |
DH-MAC55/30-10A |
DH-MAC55/30-10B |
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CHEMICAL ANALYSIS |
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MgO ,% |
> 65 |
> 55 |
> 55 |
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Al₂O₃ ,% |
> 20 |
> 30 |
> 30 |
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Residual Carbon ,% |
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firing in red.atm.at 1000℃ |
> 10 |
> 10 |
> 10 |
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PHYSICAL DATA |
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As delivered: |
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Bulk density ,g/cm³ |
3.00-3.10 | 3.00-3.05 | 2.98-3.02 | |||
Apparent porosity ,% |
<5.0 |
< 4.0 |
< 5.0 |
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Cold crushing strength ,Mpa |
> 40 | > 40 | > 40 | |||
After coking 1000℃: |
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Bulk density ,g/cm³ |
2.92-3.02 | 2.92-2.98 | 2.90-2.95 | |||
Apparent porosity ,% |
< 12 | < 11 | < 12 | |||
Cold crushing strength ,Mpa |
> 25 | > 25 | > 25 |