S.G. Rolls

     Pearlitic Spheroidal Graphite Rolls have a thick layer of cast iron with nodular graphite, the name of such roll is based on the fact that the material consists of nodular graphite and carbides in a pearlitic matrix, the softest grades have a pearlitic matrix containing ferrite around the graphite nodules, while the higher hardness grades have a complete pearlitic matrix, the carbide content increases proportionately with the hardness.

Acicular Spheroidal Graphite Rolls:


      Acicular Spheroidal Graphite Rolls also have a thick layer of cast iron with nodular graphite, here, the name of such roll is based on the fact that the material consists of nodular graphite and carbides in a pearlitic - bainitic matrix, the carbide content is considerably higher in the harder grades than the softer ones.

Advantage:

     S.G Iron Rolls are so superior in wear resistance to that of cast steel rolls that they are specially adapted for roughing and intermediate plate mills and rod or bar mill roughers. as a result of the spheroidal form of the graphite, s g iron rolls are much stronger than rolls of the clear-chill type and the gradual fall in hardness is an added advantage, as such, these rolls are particularly suitable for skelp and strip mills, also bar billet mills, and are being increasingly used for other applications.

Applications:
::

SG Iron Rolls for TMT Rolling Mills

::      SG Iron Rolls for Automatic Rolling Mills  
::

SG Iron Rolls for Narrow Strip Mill              

::    SG Iron Rolls for High Speed Mills
::

SG Iron Rolls for Plate Rolling Mills      

::    SG Iron Rolls for Roughing Stands
::

SG Iron Rolls for Wire Rod Rolling Mills

::    SG Iron Rolls for Tube Rolling Mills  
:: T - Bars & U -Section Mill Rolls               ::

   SG Iron Rolls for Deep Section Mills


Scope of Supply:
Barrel Diameter Up to 24 inches or 610 mm
Barrel Length Up to 48 inches or 1220 mm
Weight up to 3 mt under the scope of supply  


Material Specifications Process    
                 Hardness
Pearlitic Spheroidal Graphite Static Casting                 55 - 65 Shore°C
Acicular Spheroidal Graphite Static Casting                 65 - 75 Shore°C
S.G. Grey Cast Iron                             Static Casting                 40 - 50 Shore°C