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Product Details:
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| Standard: | Astm A53, Api 5l Psl1 Psl2 | Grade: | Gr.b,x42,x52,x60,Gr.2.3,A106B,SS400,St37,St52 |
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| Length: | 5.8m-12m-18meter | Quality: | Iso9001 International Certificate |
| Diameter: | 1"-48" Inch | Widely Use: | Construction, Machinery, Coal Mine, Chemical Industry, Electric Power |
| Origin: | China | Corrosion: | Hot Dipped Zinc Coated |
| High Light: | 1 Inch Galvanized Carbon Steel Pipe,X42 zinc coated steel pipe,ASTM A123 Galvanized Carbon Steel Pipe |
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ASTM A123 Standard Specification For Zinc Galvanized Carbon Steel Pipe
Hot-dip galvanizing (HDG) is the process of coating fabricated steel by immersing it in a bath of molten zinc. There are three fundamental steps in the hot-dip galvanizing process; surface preparation, galvanizing, and inspection.When the fabricated steel arrives at the galvanizing facility, it is hung by wire or placed in a racking system which can be lifted and moved through the process by overhead cranes.
The steel then goes through a series of three cleaning steps; degreasing, pickling, and fluxing. Degreasing removes dirt, oil, and organic residues, while the acidic pickling bath will remove mill scale and iron oxide. The final surface preparation step, fluxing, will remove any remaining oxides and coat the steel with a protective layer to prevent any further oxide formation prior to galvanizing.
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