| 摘要 |
A steel tube which is plated on a surface thereof such that the steel tube has further improved corrosion resistance is provided. A corrosion resistant plated steel tube(1) comprises: a steel tube(100) constructed in such a manner that a fluid flows through the steel tube; a corrosion resistant plating alloy layer(101) uniformly formed on an outer surface of the steel tube by vertically passing the steel tube through a plating part in which a corrosion resistant alloy comprising 55 wt.% of aluminum, 43.4 to 44.9 wt.% of zinc, 0.1 to 1.6 wt.% of silicon and other inevitable impurities is stored in the molten state; and a resin coating layer(102) containing a nylon resin formed on the chromium layer after forming a chromium layer(101a) by coating an outer periphery of the alloy layer with trivalent chromate. The nylon resin is a colorless nano resin.
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