The molten metal is reacted with an iron matrix to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is washed by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform plating, strong adhesion and long service life. Most of the northern processes use galvanized strips to directly coil the zinc.
Product Name | Galvanized Steel Round Pipe(Hot Dipped or Pre Galvanized) |
Material | GR.A,GR.B,GR.C,Q195,Q235B,Q345B and so on. |
Standard | API 5L,API 5CT,ASTM A53,ASTM A500,GB9711.1 |
Wall Thickness | 1MM~12MM as the requirement |
Outer Diameter | 21.3MM~219.1MM |
Length | 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
Zinc Coating | 30g-275g |
Technique | Seamless / ERW(GALVANIZED) |
Packing | Bundle, or with all kinds of colors PVC or as your requirements |
Pipe Ends | Plain end/Beveled,protected by plastic caps on both ends |
Surface Treatment | 1. Galvanized ;2. PVC,Black and color painting |
Product Application | 1. Fence, greenhouse, door pipe,greenhouse |
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