Resume Insulation Firebrick Grade-28
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Insulation Firebrick Grade-28 – Lightweight (Mullite)
Karakterisitik:
a.
Kandungan iron oxide yang rendah
b.
Thermal conductivity yang rendah
Pemakaian:
a.
Hot face lining
b.
Back up insulation
c.
Reducing atmosphere furnace
Temperature 1538o C
(2800o F)
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ASTM
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SPECIFICATION
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AVERAGE
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Bulk Density
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g/cm3
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Group 26
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0.96 max
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0.88
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Thermal
Conductivity
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W/mKkcal/moC)
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at 350oC JIS R2616
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0.26
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(0.22)
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W/mKkcal/moC)
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at 400oC ISO 8894
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0.34
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(0.29)
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W/mKkcal/moC)
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at 600oC ISO 8894
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0.37
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(0.32)
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W/mKkcal/moC)
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at 800oC ISO 8894
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0.41
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(0.35)
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Cold Crushing Strength
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MPa
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C93
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-
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1.4
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Modulus of Rupture
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MPa
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C93
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-
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1.3
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Reheat Shrinkage
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(oC x 24 hrs)
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%
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C210 JIS R26 13
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-
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0.73 (1510oC)
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(oC x 8
hrs)
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%
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C210 JIS R26 13
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-
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0.40 (1500oC)
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Thermal Expansion at 1000 oC
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%
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JIS R26 17
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-
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0.48
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Chemical analysis
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Al2O3
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%
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JIS R2216
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-
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62
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Fe2O3
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%
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JIS R2216
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-
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0.80
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Mortar
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Mortar 1400
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Standard Packing
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10 pcs / pack for
standard size
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