In the oil and gas transportation industry, several galvanized materials are specified to provide excellent corrosion resistance. There are three common methods of galvanizing: hot dip galvanizing, pre-galvanizing and galvanizing. The choice of these methods will depend on the application of the final the application environment of product.

Hot dip galvanized pipe is the tube after manufacturing immersed in the plating solution. The thickness of the zinc coating is affected by a number of factors, including the surface of the steel, the time it takes to immerse the steel in the bath, the composition of the steel, and the size and thickness of the steel.

One advantage of hot dip galvanization is that it covers the entire part, including edges, welds, etc., thus providing a full range of corrosion protection. The final product can be used outdoors in all different weather conditions. This is the most popular method of galvanizing and is widely used in the construction industry.

Hot galvanized steel tubes

Pre-galvanized pipe, also known as mill galvanized pipe, hot dip mill galvanized or continuous hot dip galvanized. Pre-galvanized steel tube is the tube that is galvanized in sheet form and therefore before further manufacture. After the plate is galvanized into the rolling mill, it is cut into a certain size and rolled back. The minimum thickness of the pipe is 12 m.

One of the advantages of pre-galvanized steel over hot-dipped galvanized steel is its better appearance. Pre-galvanized materials can be used in a variety of products, including conduit, lip and open channels.

As a professional manufacturer and supplier of pipe fittings, flanges, pipes and other pipeline products,Hebei Haihao Group can produce all kinds of pipes according to the customer’s requirement.Email:sales@haihaogroup.com