Pre zinc gi round/circular steel pipe grade/gas - Yuantai
Galvanized round steel pipe
Generally, there are two major categories: pre galvanized round steel pipes and hot-dip galvanized round steel pipes. Hot dip galvanized pipe is to make molten metal react with iron substrate to produce alloy layer, so that the substrate and coating can be combined. Hot galvanizing refers to pickling the steel pipe first. In order to remove iron oxide on the steel pipe surface, after pickling, the steel pipe is cleaned in ammonium chloride or zinc chloride aqueous solution or mixed ammonium chloride and zinc chloride aqueous solution tank, and then sent to the hot dip tank.
Hot dip galvanizing has the advantages of even coating, strong adhesion and long service life. Complex physical and chemical reactions occur between the hot-dip galvanized steel pipe substrate and the molten plating solution, forming a corrosion resistant zinc iron alloy layer with compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
Product Name | galvanized round steel pipes |
Size | OD:10.3mm-609mm
Wall Thickness: 0.5-60mm Length: 3-12m or according to clients` requirements. |
Steel material | GrA, Gr B, GrC, SS330, S275J0H; S355JR ; S355JOH; S355J2H.SS400,S235JR,S235JO,S235J2,S420,S460 |
Standard | EN10219, EN10210, GB/T6728, GB/T3094, GB/T3091,JIS G3466 |
Usage | Used For Structure, Accessorize And Construction |
Ends | 1) Plain
2) Beveled 3) Thread |
End protector | 1) Plastic pipe cap
2) Iron protector |
Surface Treatment | Galvanized |
Technique | ERW LSAW |
Type | Welded |
Section Shape | Round |
Inspection | With Hydraulic Testing, Eddy Current , Infrared Test |
Package | 1) Bundle,
2) In Bulk 3) Bags 4) Clients’ Requirements |
Delivery | 1) Container
2) Bulk carrier |
Port of Shipment | Xingang, China |
Payment | L/C T/T |
Production Detail:
Qualification
Equipment display:
Quality Control:
Our strength
Application
From the perspective of engineering, galvanized round pipes are generally used for building railings, modeling and the skeleton of some gates. It can also be used for curtain wall, building and machinery manufacturing