Method of fabrication of a piece of structural steel, and the steel fabricated thereby
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United States of America Patent
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Sep 16, 1997
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N/A
app pub date -
Dec 8, 1995
filing date -
Dec 13, 1994
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Abstract
The invention relates to a method for fabricating a piece of structural steel that includes thermal or thermomechanical treatment steps that could ordinarily lower the fatigue strength and shock and impact resistance of the steel piece. In the method of the invention a workpiece of microalloy steel is fabricated containing the following elements in the mounts indicated and having a bainitic structure:
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