High young's modulus steel plate and method of production of...

Metal treatment – Stock – Ferrous

Reexamination Certificate

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C148S332000, C148S333000, C148S334000, C148S335000, C148S336000, C148S500000, C148S504000, C148S533000, C148S602000, C428S659000

Reexamination Certificate

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08048238

ABSTRACT:
Steel sheet having a composition of ingredients containing substantially, by mass %, C: 0.005 to 0.200%, Si: 2.50% or less, Mn: 0.10 to 3.00%, N: 0.0100% or less, Nb: 0.005 to 0.100%, and Ti: 0.002 to 0.150% and satisfying the relationship of Ti−48/14×N≧0.0005, having a sum of the X-ray random intensity ratios of the {100}<001> orientation and the {110}<001> orientation of a ⅙ sheet thickness part of 5 or less, having a sum of the maximum value of the X-ray random intensity ratios of the {110}<111> to {110}<112> orientation group and the X-ray random intensity ratios of the {211}<111> orientation of 5 or more, and having a high rolling direction Young's modulus measured by the static tension method and a method of production of the same are provided.

REFERENCES:
patent: 1840723 (2006-10-01), None
patent: 04-147917 (1992-05-01), None
patent: 06-011503 (1994-01-01), None
patent: 2005-273001 (2005-10-01), None
patent: 2005-314793 (2005-11-01), None
patent: 2006-183130 (2006-07-01), None
patent: 2006-183131 (2006-07-01), None
patent: 2007-046146 (2007-02-01), None
patent: 2007-146275 (2007-06-01), None
International Search Report dated Feb. 19, 2008 issued in corresponding PCT Application No. PCT/JP2007/072042.

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