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About P.G.Panikkar
Expertise
I can answer questions about sintering plants, Raw material Handling and iron making

Experience
I worked in sinterplants, rawmaterial handling plants and iron making units in Indian and Nigerian steelplants

Organizations
Engineeringconsultancy.info

Education/Credentials
Batchelor in Science and chartered Engineer in Metallurgical Engineering

Past/Present Clients
MahadevIspat,Steel authority of India, Ajaoktta steelplant, Ispat Metallics India Ltd,Rourkela,Bokaro, Visakhapatnam SteelPlant(RINL),Gharda chemicals

 
   

You are here:  Experts > Industry > Metals > Metallurgy > Metallurgy - Effect of Normalising, Need to Normalize

Metallurgy - Metallurgy - Effect of Normalising, Need to Normalize


Expert: P.G.Panikkar - 10/14/2009

Question
What is the need to Normalize the Steels after rolling?
Effect of such normalizing ?
Effect of using un-normalizing rolled metal plates ?

Answer
Please look in to Wikipedia by google search and read
"Normalizing: Carbon steel is heated to approximately 55 °C above Ac3 or Acm for 1 hour; this assures the steel completely transforms to austenite. The steel is then air-cooled, which is a cooling rate of approximately 38 °C (100 °F) per minute. This results in a fine pearlitic structure, and a more-uniform structure. Normalized steel has a higher strength than annealed steel; it has a relatively high strength and ductility."

If more details are needed you may refer to any Good book in Physical Metallurgy and heat treatment like Lakhtin, Reed Hill etc
I will be traveling till 5thNovember 09.Hence I will not be able to answer  your questions  in all exoerts.com till I return .
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