The pre-galvanized steel pipe is made from galvanized steel strip.The cold rolled steel strip was galvanized first,and the galvanized steel strip welded into steel pipe.Sometimes,it can be made from hot rolled steel strip,but the thickness isn't accurency as cold rolled.There are some features of pre-galvanized steel pipe.
(1)Price.The pre-galvanized steel pipe price is lower than hot dipped galvanized pipe.
(2)Zinc Coating.The pre-galvanized steel pipe zinc coating is about 30-40g/m2,but it can also according to client's requirements.
(3)Service Life.The pre-galvanized steel pipe service life is about 2-3 years.
