PROCESS FOR MANUFACTURING FERRITIC HOT ROLLED STEEL STRIP
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United States of America Patent
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May 22, 2014
app pub date -
Nov 20, 2013
filing date -
Nov 20, 2012
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A process for manufacturing a ferritic hot rolled steel strip is provided. The process includes providing a steel slab, hot rolling the slab to produce a transfer bar and ferritic hot rolling the transfer bar to produce hot rolled strip. The ferritic hot rolled strip is coiled at temperatures between 580-780° C. and has a yield strength between 130-210 MPa, a tensile strength greater than 260 MPa, a uniform elongation greater than 15%, a total elongation to failure greater than 30%, and an n-value greater than 0.2.
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