Scaffolding tubes have hot dip galvanized tube and two kinds of galvanized. Hot dip galvanized with coating uniformity, strong adhesion, good corrosion resistance, long life and other advantages, is widely used in industry in various fields.

Corrosion resistance worse than hot dip galvanized, galvanized zinc layer and steel substrate layer, the zinc layer is thinner, attached to the steel substrate, easy to fall off. So in the customer when the choose and buy, we suggest the customer to choose hot galvanizing, below small make up detail pipe commonly used specifications shelf and theoretical weighing scale.

At present the mainstream standard of scaffolding is British standard and Japanese standard:
1. The British standard refers to the outer diameter of 48.3 mm steel pipe (welded pipe or seamless pipe).
In accordance with the BS EN39-2001, tube shelf has two dimensions:
Q235 / Q345 48.3 * 3.2 mm * 6000 mm
Q235 / Q345 48.3 * 4.0 mm * 6000 mm

Because of the universality of British standard used in the world, at present the two scaffolding tubes tube surface is widely used in the countries all over the world, according to the scope of the tolerance allowed by the above size evolved out of the other frame tube thickness: 2.75 mm, 3.0 mm, 3.6 mm, 3.75 mm, 3.8 mm, etc. To shed our galvanized steel pipe prices continue down trend, constantly to new lows, by contrast, rebar, wire rod, isometric material drop slightly greater than such as hot and cold rolled plate prices.

Overall, the current shed galvanized steel prices still set a new low since August 2002.In this case, to shed combined with galvanized steel pipe at high callback, billet and innovative low cost factors, galvanized canopy steel pipe prices low descend continuously, it is difficult to find support for the time being.