Method for making hot strips of lightweight construction steel
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United States of America Patent
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Oct 5, 2010
Grant Date -
Dec 20, 2007
app pub date -
Dec 22, 2004
filing date -
Dec 23, 2003
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Abstract
In a method for making hot strips, a workable lightweight construction steel is used which in particular can easily be deep-drawn cold and includes the main elements Si, Al and Mn, with high tensile strength and good TRIP and/or TWIP characteristics. The mass % are as follows for C 0.04 to <1.0, Al 0.05 to <4.0, SI 0.05 to ≦6.0; Mn 9.0 to ≦30.0, the remainder being iron with the common incidental steel elements. The melt is cast in a horizontal strip casting unit, close to the final dimensions at calm flow and without bending to form a pre-strip in the range between 6 and 15 mm, and subsequently is fed for further processing.
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