Steel Pipe for Automobile Piping
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United States of America Patent
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Issued Date -
Jul 9, 2009
app pub date -
Nov 1, 2006
filing date -
Nov 1, 2005
priority date (Note) -
Abandoned
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Abstract
A steel pipe for use in a piping of an automobile is provided, which can exhibit enhanced corrosion resistance and resistance to chipping required for a steel pipe for use in a vehicle, such as a fuel piping or brake piping, without need of employing a thicker protective resin coating layer as well as provide excellent formability for processing an end portion of the pipe. In a steel pipe which is coated with a multilayered coating including a plated coating, the multilayered coating comprises a hot dipped coating 12, a chemical conversion coating 14 provided as an outer layer of the hot dipped coating, and an outermost thin PA resin coating 18.
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