Method of heat treating low carbon steel strip

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United States of America Patent

PATENT NO 4591395
SERIAL NO

06684968

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Abstract

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A method of heat treating cold reduced, aluminum-killed low carbon steel strip containing up to 0.1% carbon, at least about 0.015% acid soluble aluminum, and manganese at least 10 times the sulfur content, comprising hot rolling, coiling at less than 1200.degree. F., cold rolling to strip, and pretreating by heating at a temperature and for a time sufficient to precipitate aluminum nitride before substantial recrystallization occurs, thereby retarding recrystallization during subsequent heating.

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Patent Owner(s)

Patent OwnerAddress
ARMCO STEEL COMPANY L P A DE LIMITED PARTNERSHIP703 CURTIS STREET MIDDLETOWN OH 45043

International Classification(s)

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  • 1984 Application Filing Year
  • C21D Class
  • 109 Applications Filed
  • 1 Patents Issued To-Date
  • 0.92 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19841985198619871988198919901991199219931994199519960255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Flowers, Jr James W Middletown, OH 1 2
Heckler, Alan J Middletown, OH 1 2
Powley, George S Carlisle, OH 4 13
Steele, Jr James H Carlisle, OH 1 2

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  • 2 Citation Count
  • C21D Class
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