Hot-Dip Galvanized Steel Wire is low-carbon steel wire coated with zinc through a hot-dip galvanizing process. Q195 and Q235 steel rod is drawn to the required diameter, cleaned and pretreated, then passed through molten zinc to form the galvanized coating.
It is mainly used for wire mesh, fencing, agricultural structures, binding and other outdoor applications where both flexibility and corrosion protection are required.
| Item | Specification |
| Product | Hot-Dip Galvanized Steel Wire |
| Base Material | Q195 / Q235 low-carbon steel |
| Common Diameter | 0.7–6.0 mm |
| Custom Diameter | Available according to application |
| Zinc Coating | Commonly 60–120 g/m² |
| Heavy Zinc Coating | Available for higher-corrosion environments |
| Tensile Strength | 400–800 MPa, negotiable |
| Coil Weight | 5–200 kg/coil |
| Small Coils | Available for specific requirements |
| Surface | Silver-gray galvanized finish |
| Processing | Rewinding, cutting, customized packing |
| Inspection Documents | Galvanizing inspection report and agreed quality documents |
The production process is:
Steel rod → wire drawing → cleaning → degreasing and pickling → fluxing → drying → hot-dip galvanizing → coating control → cooling → inspection → rewinding → packing
Wire drawing reduces the steel rod to the required diameter and determines part of the wire's mechanical condition. The cleaned wire is then immersed in molten zinc to form the protective coating.
After galvanizing, the wire is inspected for diameter, tensile strength, zinc coating and surface condition before being rewound and packed.
Zinc coating is one of the main specifications for galvanized steel wire because it directly affects corrosion protection.
The common coating range is 60–120 g/m². Higher zinc coating can be specified for applications exposed to higher humidity, rainfall or coastal conditions.
| Application Environment | Coating Consideration |
| Indoor or limited exposure | Standard galvanized coating |
| Normal outdoor use | Common 60–120 g/m² range |
| Humid or rainy environment | Higher coating can be considered |
| Coastal or salt exposure | Specify increased coating according to the application |
The required zinc coating should be confirmed against the applicable wire standard and project specification.
Diameter and tensile strength should be specified together because they affect how the wire is processed and used.
For hand tying, bending and forming, a more workable mechanical condition may be preferred. Fencing, mesh and tensioned applications may require higher tensile strength.
The available tensile strength range is 400–800 MPa, subject to the required diameter and manufacturing condition.
| Wire Diameter | Typical Applications |
| 0.7–1.0 mm | Fine mesh and light fencing |
| 1.0–1.6 mm | Wire mesh, fencing and agricultural use |
| 1.6–2.5 mm | Heavier fencing, binding and general fabrication |
| 2.5–4.0 mm | Heavy mesh and reinforced fencing |
| 4.0–6.0 mm | Heavy fixing and special fabrication |
These are application references only. The actual diameter should be selected according to the mesh opening, fence design, forming equipment and required strength.
Used for chain-link fencing, welded wire products, livestock fencing, agricultural barriers and other mesh products.
Used for orchard fencing, greenhouse fixing, farm structures and other outdoor agricultural applications.
Used for suitable fixing, tying, fencing and auxiliary applications in outdoor PV projects, subject to the project specification.
Used for tying, wrapping, reinforcement and other applications that require flexible galvanized steel wire.
Used as the base wire for galvanized barbed wire and related fencing products.
The main difference is the galvanizing process and resulting zinc coating.
Hot-dip galvanized wire is immersed in molten zinc and is generally selected for outdoor applications where a higher level of corrosion protection is required.
Electrogalvanized wire uses an electroplating process and normally has a thinner zinc coating. It is more commonly used where corrosion exposure is limited.
When comparing the two products, check the zinc coating quantity and application requirements rather than judging the wire only by its surface brightness.
Standard coil weights range from 5 to 200 kg per coil. Smaller coils can also be arranged for specific production or handling requirements.
Larger coils are suitable for continuous wire-feeding equipment, while smaller coils can be easier to handle in manual processing or small-scale production.
For export orders, packing can be arranged according to the coil weight, loading method and transportation requirements. Moisture protection is important during sea transportation to reduce the risk of white rust.
White powder on galvanized wire is generally a zinc corrosion product caused by moisture remaining on the galvanized surface. It is more likely to occur when coils are tightly packed, wet and poorly ventilated.
For storage, keep galvanized wire dry, ventilated and raised from the ground. Prevent rainwater from entering the packaging and avoid prolonged contact with standing water.
Light white rust does not automatically mean that the steel core has rusted, but prolonged wet storage can consume the zinc coating.
Hot-Dip Galvanized Steel Wire can be prepared according to downstream production requirements.
For mesh, fencing or hardware production, the wire diameter, tensile strength and coil weight should be matched to the customer's equipment before production.
Inspection can cover:
Agreed inspection records and galvanizing inspection reports can be provided for export orders. Third-party inspection can also be arranged when required.
Our supply chain in Tianjin Daqiuzhuang supports steel wire processing, galvanizing, inspection, rewinding and export packing.
It is low-carbon steel wire coated with zinc by immersion in molten zinc. The zinc coating provides corrosion protection while the wire retains its flexibility for forming and weaving.
The common range is 60–120 g/m². A higher coating can be specified for applications with greater corrosion exposure.
It depends on the fence type, mesh opening, span and required strength. Approximately 1.0–1.6 mm is commonly used for lighter fencing, while heavier fencing may require larger diameters.
Yes. The available range is approximately 400–800 MPa, subject to the wire diameter and required manufacturing condition.
Yes. It is commonly used for chain-link fencing, welded wire products, agricultural mesh and other wire-mesh applications. Diameter and tensile strength should match the weaving equipment and finished mesh specification.
Hot-dip galvanized wire is coated by immersion in molten zinc and is generally used where greater corrosion protection is required. Electrogalvanized wire normally has a thinner zinc coating and is used for less demanding exposure conditions.
White rust is generally caused by moisture trapped on the zinc surface. Keep the coils dry and ventilated during storage and transportation to reduce the risk.
Yes. Standard coil weights are 5–200 kg, and smaller coils can be discussed for specific production or handling requirements.
Yes. Rewinding, cutting and customized packing can be arranged according to the customer's production and packaging requirements.
Provide the diameter, steel grade, tensile strength, zinc coating, coil weight, quantity, packing requirements and intended application. This information allows the production specification to be confirmed before quotation.
Address
Secondary Arterial Road No. 2-1, Expansion Area of Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, China
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