Zinc-Aluminum-Magnesium Coated Steel Pipe Suppliers and Factory in China for Corrosion-Resilient Solutions
Detailed Description of Zinc-Aluminum-Magnesium Steel Pipe
Zinc-Aluminum-Magnesium coated steel pipe is a modern metallic coated pipe product that has a better service life than galvanized steel. ZAM is manufactured by the continuous hot dip process which results in the ZAM coating being evenly applied to the base steel. The alloying components are essential for the corrosion performance. The aluminum and magnesium alloying components provide a very fine, dense and stable protective film Simonkolleite that is substantially more corrosion resistant than pure zinc. An unusual feature of this type of metallic coating is its "self-healing", or sacrificial protection properties; if a piece of ZAM pipe is cut or scraped away, and as a result the exposed edge is bare steel, then a zinc-based protective film will now form over the bare edge of the steel which will seriously inhibit any red rust formation.
Key Parameters for Zinc-Aluminum-Magnesium Steel Pipe
| Parameter | Details |
|---|---|
| Manufacturing Process | ERW process using Zinc-Aluminum-Magnesium coated steel coils |
| Coating Standard | EN 10346, JIS G 3323, ASTM A1046 |
| Base Pipe Standard | Typically formed to EN 10219, ASTM A500 specifications |
| Steel Grade | S235, S355, DX51D+ZM, SGCC |
| Size Range (OD) | Common sizes for structural applications, e.g., 20mm – 200mm |
| Wall Thickness (WT) | 1.0mm – 6.0mm |
| Coating Weight | ZM80 – ZM400 (Represents grams per square meter, both sides) |
| Surface Finish | Bright, fine spangle finish |
| Shapes Available | Round, Square, Rectangular, C-Channel, U-Channel |