Hot dipped galv.pipes specification:
Dimentional grade:Bs 1387/1985 ; en10219-2:1997
Type:Hot dipped galvanized steel pipe,cold galvanized pipe, also called electric galvanized pipe
The processing of hot galvanizing:
Finished pickling –> washing –> plating –> drying –> hanging plating –> cooling –> medicine –> cleaning –> grinding –> hot galvanized finish.
Hot dipped galv.pipes advantage:
Hot Dipped Galv.Pipes are coated with a protective layer of zinc. The zinc layer work for a sacrificial layer, it will get rust before the carbon steel under neath it. The galvanized layer will enhance the corrosion resistance of the welded pipe.
Hot dipped galv.pipes application:
Hot Dipped Galv.Pipes mainly used in transmission of coal gas, steam & construction.
How long of hot dipped galv.pipes lifetime?
Hot dip Galv.Pipes has a long service life. But the service time is different under different conditions.
In generally, 13 years for heavy industrial zones, 30 years for cities, 50 years for marine environments, and 104 years for suburbs.In fact galvanizing have played a role of anti- rusty, it's no need other rust treatment.
The hot-dip galvanizing process is especially suitable for various alkali mist, strong acid and other strong corrosive conditions.