Durgesh Group : India's Leading Export House for Cenosphere, Iron Ore, Microsilica and other Minerals
   
   
 
 
     
 

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  Durgesh Merchandise Pvt Ltd
India

 
 
Telephone: +91 33 2243 4306
  +91 33 2243 8434
FAX:   +91 33 2243 4405
 
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  Mill Scale  
  Mill scale is formed on the outer surfaces of plates, sheets or profiles when they are being produced by rolling red hot iron or steel billets in rolling or steel mills. Mill scale is composed of iron oxides mostly ferric and is bluish black in color. It is usually less than a millimetre thick and initially adheres to the steel surface and protects it from atmospheric corrosion provided no break occurs in this coating. Because it is electro-chemically cathodic to steel, any break in the mill scale coating will cause accelerated corrosion of steel exposed at the break. Mill scale is thus a boon for a while until its coating breaks due to handling of the steel product or due to any other mechanical cause. It is a nuisance when the steel is to be processed. Any paint applied over it is wasted since it will come off with the scale as moisture laden air get under it. Thus mill scale has to be removed from steel surfaces by flame heating, acid pickling or grit/sand blasting.  
     
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Mill Scale-In Containers   Mill Scale-In Bulk Vessels
In Containers   In Bulk Vessels
     
     
 
     
 
 
     
   
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