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| Model NO. | a53 |
| Technique | Hot Rolled |
| Material | Galvanized Steel Pipe |
| Surface Treatment | Hot Rolling / Galvanized |
| Section Shape | Square / Round |
| Standard | ASTM A53-2007, ASTM A671-2006, ASTM A252-1 |
| Thickness | 1mm-12mm |
| Length | 5.8m, 6m, 10m-12m |
| HS Code | 7208512000 |
Galvanized steel pipe is a specialized tubular product manufactured by applying a zinc coating to the surface of carbon steel pipes through hot-dip or electroplating processes. The zinc coating forms a sacrificial anode protection layer, effectively isolating the steel substrate from air and moisture, thereby significantly enhancing corrosion resistance.
| Process | Zinc Coating Index | Core Properties | Service Life |
|---|---|---|---|
| Hot-Dip (HDG) | ≥80μm (average ≥640g/m²) | Strong adhesion, excellent corrosion resistance | 20-50 years (outdoor) |
| Electro-Galvanizing | 10-50μm | Smooth surface, indoor use | 3-8 years (indoor) |
| Parameter | Typical Range | Standard |
|---|---|---|
| Outer Diameter | DN15 (21.3mm) - DN300 (323.9mm) | ASTM A53, GB/T 3091 |
| Wall Thickness | 1.2mm - 12.0mm | ASTM A53, EN 10255 |
| Mechanical Properties | Tensile: 375-500MPa; Yield: ≥235MPa | ASTM A53 |

















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