Alumina Firebrick (SK Series)

SK-36

SK-36 & SK-38

SK-37

SK-38

Alumina brick with alumina content above 45% with raw material from bauxite and clay. There are several grades of alumina firebrick refractories:

1.  Firebrick SK-35.
Refractoriness point: 1380 oC
Normal size: 230 x 114 x 65mm
2.  Firebrick SK-36.
Refractoriness point: 1420 oC
Normal size: 230 x 114 x 65mm
3.  Firebrick SK-37.
Refractoriness point: 1450 oC
Normal size: 230 x 114 x 65mm
4.  Firebrick SK-38.
Refractoriness point: 1450 oC
Normal size: 230 x 114 x 65mm
 Products SK-35 SK-36 SK-37 SK-38 SK-40
Refractoriness (SK) 35 36 37 38 40
Chemical Analysis
    Al2O3   (%) 45 50 60 72 80
    Fe2O3   (%) 2.0 2.0 2.0 2.0 1.8
Bulk Density (gm/c.c) 2.25 2.30 2.35 2.40 2.65
Apparent Porosity (%) < 23 < 23 < 23 < 23 < 22
Cold Crushing Strength (Mpa) 40 45 50 52 70
Thermal Linear Expansion (%) @ 1000 oC 0.6 0.6 0.6 0.6 0.6
Permanent Linear Change (%)@ 1400 oC x 2 hours ± 0.3 ± 0.3 ± 0.3 ± 0.3 ± 0.2
Refractories Under Load (oC) @ 0.2Mpa 1380 1420 1450 1500 1530

General Sandard size of Firebrick:

  • NF1 STD 230x114x65 mm
  • NF1-76 230x114x76 mm
  • ARCH 1 & WEDGE 1 230X114X65/55MM
  • ARCH 2 & WEDGE 2 230X114X65/45MM
  • SPLIT 230X114X32

Please see our digital catalogue for general size of firebricks

Fireclay Bricks (SK 32/SK 33 and SK 34) Hard Fireclay Bricks (DN 12/DN 14 and DN 17) High Alumina Firebrick (SK 35/SK 36/SK 37/SK 38/ SK 40) Special High Alumina Brick (SAL 92/SAL 90/SAL 85/SAL 80/SAL 75/SAL 70 & SAL 60) Alumina Spinel Bricks
Corundum Bricks Corundum Mullite Bricks Hollow ware Bricks Anchor Bricks Refractory Mortars

Please also see our Functional Refractories here

Monolithic Refractories Material Magnesia Product for Electric Arc Furnace in Steel Melting Plant Firebrick Refractories (Alumina Base Products) Insulation Bricks & Lightweight Insulation Bricks
Refractory Firebrick with Magnesia Based & Others Anchoring System & Steel Fibre for Refractory Crucible & Special Shape Refractory Pre-cast Refractory Product
Functional Refractories Wear Resistant Ceramic Products Micasheet for Induction Furnace

For further information, you can contact our Sales Engineer, or you can contact us directly here.