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Galvanized steel wire is made from high-quality carbon structural steels such as 45#, 65#, and 70#. These wires undergo a drawing process and are then electro-galvanized or hot-dip galvanized to create a corrosion-resistant coating.
Post-Galvanization Drawing: This method involves quenching the wire in lead, galvanizing it, and then drawing it into the finished product. It results in a thin and uniform zinc layer and lower zinc consumption.
Process Flow: Steel wire → lead quenching → galvanizing → drawing → finished wire.
Intermediate Galvanization Drawing: Zinc coating is applied between two drawing stages, producing a thicker zinc layer than the previous method.
Process Flow: Steel wire → lead quenching → first drawing → galvanizing → second drawing → finished wire.
Mixed Galvanization Drawing: Used for ultra-high-strength wires (up to 3921 MPa), the process combines several drawing stages with zinc coating, ensuring the zinc layer acts as both protection and lubrication.
Process Flow: Lead quenching → first drawing → pre-galvanizing → second drawing → final galvanizing → third drawing → finished wire.
| Category | Range |
| Nominal Diameter | 0.15-8mm |
| Zinc Layer Thickness | 15-590g/m² |
| Tensile Strength | 900-2200 MPa |
A combination of steel grades and heat treatments is used to manufacture soft, medium, and hard tensile grades. The table below is indicative only of typical steel chemistries.
| Element | Content (%) |
| Carbon (C) | 0.06-0.12 |
| Manganese (Mn) | 0.25-0.50 |
| Sulfur (S) | ≤0.03 |
| Phosphorus (P) | ≤0.03 |
| Country/Region | Steel Grade | Standard |
| China | Q195 | GB/T 700-2006 |
| USA | A1008 | ASTM A1008/A1008M |
| Europe | DC01 | EN 10130 |
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