Hot-dip galvanized steel pipe and method of manufacturing the same
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United States of America Patent
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Mar 14, 2017
Grant Date -
Apr 2, 2015
app pub date -
Dec 13, 2012
filing date -
Apr 24, 2012
priority date (Note) -
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Abstract
There are provided a hot-dip galvanized steel pipe in which the plating layer thereof is less liable to peel off even if the steel pipe is worked, and a method of manufacturing the hot-dip galvanized steel pipe. The hot-dip galvanized steel pipe includes a steel pipe and the plating layer formed on the surface of the steel pipe. Throughout the entire depth of plating layer, the fn defined by the following formula is at least 99.9:
where, the symbol of an element in the formula represents the content (mass %) of that element in the plating layer.
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