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topic 11254

Can Mill Scale replace black iron oxide or magnetite?


Can anybody tell the difference between Iron Mill Scale, Black Iron Oxide, Magnetite (Iron ore)? If the basic composition is the same, can Mill scale be used in place of Black Iron oxide or Magnetite.

R. Dan
- India


Well, there have been many attempts to use mill scale but all have failed because of structural faults in mill scale. It cannot be used in most applications but if you tell which application would you like to use it, I think all in the room can guide you better.

Dr Kolbasaki
- Russia

April 21, 2011

Mill scale can replace certian percentage of iron ore in steel mill , but usually not exceed 10%. We are buying mill
scale all over the world to supply to steel mills in China.

WQ. Hao
- Nanjing, China


Can iron mill scale powder be used without purification as black iron oxide for ferrites.

R. Dan (returning)
metal , alloys & oxide powders - India


Well mill scale needs to be purifies as it contains contaminants like sulphur and phos. magnetically it needs to be separated and texture modified by heat treating it to 670° C. then it can be used as magnetite.

Er manuj kaushesh
- Solan (H.P), India


Can Iron mill scale be recycled? if so, by which method since it contains so many substances like Cu, Ni, CaO, SiO, and hydrocarbon.

Terence Mbinowoh
Management Instructor - Göttingen, Germany

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