Generally, Hot-dip galvanization pipes in our production and life mainly react with molten metal and ferrite to produce alloy layer, so that the substrate and coating can be combined. Among them, hot dip galvanizing mainly involves pickling the surface of steel pipes, and such measures are mainly used to remove iron oxide on the surface of steel pipes. After acid …

How to distinguish the quality of galvanized pipes Distinguishing the quality of galvanized pipes: 1. Generally, defective galvanized pipes are in a folded state, and the appearance of such folded galvanized pipes is the main reason for this kind of folding line. This disadvantage often runs through the longitudinal direction of the entire product, and the reason for folding may …

Galvanised Iron (GI) Pipes are manufactured using mild steel strips of Low Carbon Steel Coils. The strips are passed through a series of fin rolls to give them a circular shape. The slit ends of the strips are then welded together by continuously passing high frequency electric current across the edges. The welded steel pipes are then passed through sizing …