What is the difference between hot-dip galvanized steel pipe and hot-dip galvanized steel pipe SC?

Generally speaking, the hot-dip galvanized steel pipe is the ordinary hot-dip galvanized steel pipe by default, but a small number of customers often send us the demand for hot-dip galvanized steel pipe SC, and many friends will feel confused. All kinds of steel pipes are hot-dip galvanized, what is the difference?

1. It means different:

Hot-dip galvanized steel pipe generally refers to the standard nominal diameter of the water pipe, which is represented by DN. Hot-dip galvanized steel pipe SC means that the wire is laid through the steel pipe (low-pressure fluid welded steel pipe) SC is an ordinary welded steel pipe, which is equal to the DN of the water major. laying method.

2, the process is different:

The hot-dip galvanized coating is thick, so the anti-corrosion ability is strong. The hot-dip galvanized steel pipe SC is uniform, the surface quality is good, and the thickness of the coating is generally between a few microns to ten microns. Hot-dip galvanizing is a chemical treatment, which is an electrochemical reaction. The hot-dip galvanized steel pipe SC is a physical treatment, only a layer of zinc is brushed on the surface, and there is no galvanized inside at all, so the hot-dip galvanized steel pipe SC is easy to fall off. Hot-dip galvanizing is often used in construction.

The common point of hot-dip galvanized steel pipe and hot-dip galvanized steel pipe SC is that both belong to galvanized steel pipe.