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Magnesia-Carbon Brick

    Taking high purity dead burned magnesite and natural high purity graphite as feed materials and high quality phenolic resin as binder, this product is a unfired brick that is made through high speed blending, evacuated high pressure shaping, heat treating and other processes. It is featured by dense matrix structure, reasonable phase distribution, good properties of anti-spalling, anti-corrosion, high temperature volume stability and heat conductivity. It is mainly used in converter, refining furnace, high power and ultra-high power electric arc furnace and other furnaces.

 

 
Brand *Item Physical and Chemical Specifications **Main Material Application
At Normal Temperature 1,400oCx 0.5h
High Temp.
Bending
Strength MPa
C(%)
App. Porosity
%
B.D.
g/cm3
Crushing Strength
MPa
Applied for Converter
H10C Typical 3.5 2.89 33.0 15.5 11.8 DBM97
FM97
mouth of converter
Guartd. ≤5.5 ≥2.80 ≥24.5 ≥8 ≥10
H20C Typical 3.1 2.93 33.3 - 18.4 FM97 small converter
Guartd. ≤5.5 ≥2.75 ≥24.5 ≥10 ≥17
H20C-1 Typical 2.4 2.91 31.3 - 19.2
Guartd. ≤5.0 ≥2.80 ≥24.5 ≥10 ≥17
H20E3 Typical 2.8 2.92 32.6 13.2 19.3 FM98 medium or small converter
Guartd. ≤5.5 ≥2.75 ≥24.5 ≥10 ≥17
H20E3-1 Typical 2.9 2.92 34.6 15.7 18.15
Guartd. ≤5.0 ≥2.8 ≥30 ≥12 ≥17
H20E-R Typical 2.9 2.90 33.9 20.5 19.74 big crystal FM98 air port of furnace bottom
Guartd. ≤4.0 ≥2.85 ≥30 ≥12 ≥17
A17 Typical 3.0 2.87 31.3 14.4 15.2 DBM97/98
FM97/98
medium or small converter
Guartd. ≤5.5 ≥2.80 ≥24.5 ≥8 ≥14
A17-1 Typical 2.6 2.89 36.5 15.7 18.36
Guartd. ≤5.0 ≥2.85 ≥30 ≥10 ≥14
Applied for Ultra-high Power EAF
MT14A Typical 1.5 3.01 35.6 - 14.91 big crystal FM98 EAF hot spot
Guartd. ≤4 ≥2.95 ≥30 ≥10 ≥14
MT14B Typical 2.5 2.99 36.7 16.0 14.92 FM98 wall of EAF
Guartd. ≤4 ≥2.95 ≥30 ≥10 ≥14
MT9A Typical 2.0 3.05 42.8 - 10.38 FM98 bottom of EAF
Guartd. ≤4 ≥3.00 ≥35 ≥10 ≥9
Applied for Refining Furnace or Ladle
LF20 Typical 2.8 2.90 34.4 - 19.2 FM97 refining furnace or stag line of ladle 
Guartd. ≤5 ≥2.8 ≥24.5 - ≥18
LF12 Typical 3.5 2.91 38.1 - 13.1
Guartd. ≤5 ≥2.85 ≥30 - ≥12

* Guartd.=guaranteed.  ** DBM=dead burned magnesite, FM=fused magnesite.  97=MgO 97% min.

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