EN S235JR 1.8mm Hot-Dip Galvanized Iron Wire

Hot-dip galvanized iron wire, also known as hot-dip galvanized iron wire, is made by drawing high-quality low-carbon steel wire into a shape and then dipping it into molten zinc, resulting in a layer of zinc firmly attached to the surface. This zinc layer provides excellent electrochemical protection for the steel matrix, making it a highly rust- and corrosion-resistant metal material. It is widely used in applications where it is exposed to harsh environments for long periods of time.

2. Process: High-quality wire rod → Drawing → Annealing (softening treatment) → Pickling (to remove oxide scale) → Hot-dip galvanizing (immersing the wire in molten zinc at approximately 450°C) → Wiping (controlling zinc coating thickness) → Cooling → Winding and coiling.
Features: The zinc coating is thick, typically 30-60μm or even thicker. The coating firmly bonds to the iron substrate, forming an iron-zinc alloy layer that offers excellent corrosion resistance and a long service life. However, the surface is relatively rough, not as shiny as electro-galvanized wire, and its flexibility is slightly less.

3. Product Features
Excellent Corrosion Resistance: The zinc layer acts as a physical barrier, isolating the iron substrate from air and moisture. Even if the coating is slightly damaged, the zinc acts as a sacrificial anode and corrodes preferentially, protecting the iron within (cathodic protection). This results in a service life far exceeding that of ordinary black iron wire (iron wire) and electrogalvanized iron wire.
High Adhesion and Uniform Coating: The hot-dip galvanizing process creates a thicker zinc layer (typically 45-100 microns) that bonds securely to the iron substrate, resisting cracking or flaking during processes like bending and winding.
High Strength and Toughness: Cold-drawn, the product possesses high tensile strength and good toughness, allowing it to withstand moderate stretching and deformation.
Long Service Life: Under standard conditions, hot-dip galvanized iron wire can maintain a rust-resistant lifespan of 20-50 years, significantly reducing maintenance and replacement costs.
Cost-Effectiveness: While the initial cost is higher than that of ordinary iron wire, its exceptionally long service life and minimal maintenance requirements result in a very low overall lifespan. Beautiful: The surface has a unique silver-white luster with zinc flowers, and the appearance is uniform and beautiful.

4. Main Applications:
Hot-dip galvanized iron wire, due to its excellent corrosion resistance and mechanical properties, is widely used in: construction and civil engineering, agriculture and horticulture, industry and packaging, daily life and household use, communications and power generation, and transportation.

5. Common packaging methods: plastic inside and woven outside, plastic inside and linen outside.