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Hot Dipped Galvanized Wire
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Hot Dipped Galvanized Wire
| name | Hot Dipped Galvanized Wire |
Material |
high quality Q195 low-carbon steel |
Diameter range |
BWC6-BWG26 |
Zinc coated |
40-350g/m² |
Tensile strength |
350-550N/mm² |
Elongation |
15% |
| Coil weight | 1kg-1000kg or as requirements |
Product Overview
Hot-Dipped Galvanized Wire (HDG Wire) is a corrosion-resistant steel wire manufactured by immersing cleaned steel wire in molten zinc (typically at 450°C/842°F), forming a metal lurgically bonded zinc-iron alloy coating. This process provides superior rust protection compared to electro-galvanizing, making it ideal for harsh environments.
1.Key Specifications
Base Material:Low-carbon steel (Q195, Q235, AISI 1008-1018)
Wire Diameter:0.7mm–6.0mm (custom up to 10mm)
Zinc Coating: Class 1 (Z100): 60–80g/m² (indoor use)
Class 3 (Z200): 150–200g/m² (outdoor standard)
Class 4 (Z275): 250–350g/m² (marine/industrial)
Tensile Strength:350–550 N/mm² (can be soft/medium/hard drawn)
Standards:ASTM A641 (US), ISO 7989-2 (EU), JIS G3532 (JP)
2. Manufacturing Process
Wire Drawing: Cold-drawn to precise diameters with controlled elongation.
Acid Cleaning: Removes mill scale/rust (HCl or H₂SO₄ bath).
Fluxing: Ammonium chloride/zinc chloride pretreatment.
Hot-Dip Galvanizing: Immersion in 99.9% zinc at 450°C.
Passivation: Chromate or water quenching to prevent white rust.
3. Applications
Construction: Binding rebar, suspension cables, mesh weaving.
Agriculture: Vineyard trellises, livestock fencing, baling twine.
Industrial: Safety grilles, conveyor belts, spring manufacturing.
Marine: Dock rigging, fish cages (with Class 4 coating).
4. Quality Assurance
Coating Adhesion Test: Wrapped 6x around mandrel (no flaking).
Salt Spray Resistance: 500–1,000 hours (ASTM B117).
Zinc Thickness Measurement: Magnetic gauge (min. 50µm for Z200).
