Deformed steel wire for protection tube of submarine cable, method for manufacturing same, and pressure-resistant layer
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United States of America Patent
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Mar 1, 2016
Grant Date -
Oct 22, 2015
app pub date -
Oct 3, 2013
filing date -
Oct 4, 2012
priority date (Note) -
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Abstract
There is provided a deformed steel wire includes, as a chemical component, by mass %; C: 0.30% to 1.10%, Si: 0.10% to 1.50%, and Mn: 0.20% to 1.50%, and the balance consists of Fe and unavoidable impurities, in which a metallographic structure is a ferrite-pearlite structure or a pearlite structure, integration degrees of a crystal orientation <110> in a longitudinal direction of a thickness center area and a surface area are in a range of 2.0 to 4.0, an absolute value of a difference in the integration degree between an inner surface and an outer surface of the surface area is 0.3 or less, an integration degree of a crystal orientation <100> in a thickness direction of the thickness center area is in a range of 1.2 to 3.8, and a dimensional accuracy index is in a range of 0.5 to 2.0.
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