Hot dip galvanized steel pipe is the molten metal and the reaction of the iron matrix alloy layer, so that both the substrate and the coating combination. Hot-dip galvanizing is pickling of the steel pipe first, in order to remove iron oxide on the surface of the steel pipe, pickling, washing with ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then feeding Hot dipping tank. Hot dip galvanized coating with uniform, strong adhesion, long life and other advantages. The steel substrate undergoes complex physical and chemical reactions with the molten plating bath to form a corrosion-resistant and compact zinc-iron alloy layer. Alloy layer and pure zinc layer, steel substrate integration. Therefore, its strong corrosion resistance.
|Product Name||Hot Dipped Galvanized Pipe|
|Length||4-12m or as your requirement|
|Surface||Pre-galvanized/Hot Dip Galvanized/Oiled/Painted|
|Zinc Coating||200-600g/m2 for hot dip galvanized|
|Standard||ASTM-A53/BS 1387-1985/GB/T 3091-2001 for round pipe|
ASTM A500 /GB/T3094 for square/rectangular pipe
|Ends||Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/expanding neck/punching holes|
We have 10 production line for steel pipe.And our annual production is about 60,0000 tons per years.So we also have enough stock provide for customers.
1)For agricultural greehouse construction.
3)For extinguishing and protection.
4)For outside advertisement post.