According to different engineering project's characters, we should wholesale the relative function welded steel pipe for them. ERW steel pipe, spiral one, general one and so on should be treated carefully before purchasing.
Today, we'd like to recommend four types of welded steel tubes for customers. You can list your need during the sharing.
General welded steel pipe: it may adopt Q195A, Q215A and Q235A or mild steel as raw materials. Thus, they can be used for transferring the low pressure fluid.
Galvanized welded steel pipe: Enhancing the corrosion resistance would be an important lesson for manufacturers. Thus, there is the birth of the general welded pipe made by galvanized zinc as protective layer. Galvanized steel pipe has three types: Pre-painted (zinc: 60-120G/M2); Hot-dipped galvanized (zinc: 120-500G/M2); Cold-dipped galvanized(zinc:10-50G/M2).
Metric system welded steel tube: The metric system welded tube is made from the common carbon steel, quality carbon steel or low alloy steel with the hot and cold welding or after hot welded by the cold again.
Spiral welded tube: The spiral welded tube uses low carbon structural steel or low alloy structural steel strip according to certain helix angle (forming angle) rolled into a tube billet, then welded the pipe joints to be made.
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