Insulation Firebrick Grade-28 – Lightweight (Mullite)

Picture 3.5.3.4 - 01
Picture 3.5.3.4 - 02

Characteristics:

  1. Low iron oxide content
  2. Low thermal conductivity

Application:

  1. Hot face lining
  2. Back up insulation
  3. Reducing atmosphere furnace
Temperature 1538o C (2800o F)

  ASTMSPECIFICATIONAVERAGE
Bulk Densityg/cm3Group 260.96 max0.88
Thermal ConductivityW/mKkcal/moC)at 350oC JIS R26160.26(0.22)
W/mKkcal/moC)at 400oC ISO 88940.34(0.29)
W/mKkcal/moC)at 600oC ISO 88940.37(0.32)
W/mKkcal/moC)at 800oC ISO 88940.41(0.35)
Cold Crushing StrengthMPaC93-1.4
Modulus of RuptureMPaC93-1.3
Reheat Shrinkage(oC x 24 hrs)%C210 JIS R26 13-0.73 (1510oC)
(oC x 8 hrs)%C210 JIS R26 13-0.40 (1500oC)
Thermal Expansion at 1000 oC%JIS R26 17-0.48
Chemical analysisAl2O3%JIS R2216-62
Fe2O3%JIS R2216-0.80
MortarMortar 1400
Standard Packing10 pcs / pack for standard size

Lightweight Brick Grade-23 (1230 C)

Lightweight Brick Grade-25 (1300 C)

Lightweight Brick Grade-26 (1400 C)

Lightweight Brick Grade-28 (1500 C)

Lightweight Brick Grade-30 (1550 C)

Lightweight Brick Grade-32 (1600 C)

Monocrystal (Single) Fused Alumina Product

Monocrystal (Single) Fused Alumina Product is produced from high purity Bayer Alumina.