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Galvanized wire classes - Baling Wire Direct

Jul. 07, 2025

Minerals

Galvanized wire classes - Baling Wire Direct

Some baling wire undergoes a galvanization process that involves coating the wire in a layer of zinc. The zinc coating acts as a sacrificial outer layer, protecting the wire from rust, corrosion, and abrasion.

With competitive price and timely delivery, Nearyz Resources sincerely hope to be your supplier and partner.

Zinc-coated steel wires are exceptionally resilient to weather conditions, making them a primary choice for baling recyclable materials that will be stored outside, farm fencing, and vineyard trellising.

Different classes of galvanized steel

Baling Wire Direct offers both Class 1 and Class 3 galvanization on all wire products. Class 3 galvanization offers significantly higher corrosion resistance than the standard Class 1 galvanization.

Class 1 galvanized wire features a thinner zinc coating of 0.28 ounces per square foot and provides basic protection, but it tends to rust after 2–12 years depending on the environment. In coastal areas, Class 1 coating fails even sooner due to saltwater corrosion. It is often used for barbed wire fencing.
Class 3 galvanized wire offers a premium zinc coating (nearly three times as thick as Class 1) that uses 0.80 ounces of zinc per square foot. This wire coating offers a higher degree of protection, providing a lifespan of 13–30 years. Class 3 galvanized wire is more expensive up front, but it is much more long-lasting. Class 3 galvanization is our most rust resistant wire coating, the ideal choice for harsh environments.

Galvanized steel properties

Compared to regular baling wire, galvanized wire has many advantages. The benefits of galvanized wire include:

Versatility. Galvanized steel wire is suitable for a variety of industries, including recycling, agriculture, and construction, due to its high tensile strength, formability, and corrosion resistance.
Corrosion resistance. Galvanized iron wire resists rust up to 100 times better than uncoated steel, making it highly durable and long-lasting.
Durability. The zinc coating is extremely durable and resistant to scratches from abrasion.
Recyclability. Hot-dip galvanized wire is as recyclable as other types of steel, making it an environmentally friendly wire material.
Surface appearance. All zinc-coated steel wires have a matte-gray appearance. The zinc coating applied by electro-galvanizing is smoother than galvanized steel made with hot-dip galvanization.
Formability. The zinc coating on galvanized steel is resistant to cracking and loss of adhesion, making it highly formable.
Long life. Hot-dip galvanized steel has a long life, requiring less maintenance and offering a low long-term cost.

Different types of galvanization

Metal can be galvanized through several different processes, including:

Hot-dip galvanizing. This involves immersing the base wire material into a bath of molten zinc, providing a complete zinc coating. It is the most popular and trusted method of galvanization due to its thorough coverage and durability.
Pre-galvanizing. Similar to hot-dip galvanizing, but performed at a steel mill, where the steel is coated with a layer of zinc before it is formed into the final wire product.
Galvannealing. A process that combines hot-dip galvanizing and the annealing process, resulting in a zinc-iron alloy product with a dull matte surface appearance. It is conducive to welding and provides an excellent surface for paint adhesion.
Electro galvanizing. This method does not use a molten zinc bath. Instead, it involves applying zinc in a thin coating to the base metal, typically through an electroplating process. The zinc coating applied by electro-galvanizing is smoother than that of hot-dip galvanized products.

Our hot-dip galvanizing process

Our hot-dip galvanization process involves the following steps:

Surface preparation. First, the wire undergoes a cleaning process to eliminate any impurities from the exterior of the metal. This purification ensures the adhesion of the zinc coating.
Pickling. We then submerge the wire in an acidic solution to strip off any remaining oxides and residue. This process primes the surface for galvanizing by generating a pristine foundation.
Fluxing. We soak the wire in a flux solution (zinc ammonium chloride) that hinders oxidation and enables a uniform coating of zinc.
Molten bath. We then plunge the wire into a bath of zinc heated to around 450°C (850°F).
Alloy formation. While immersed in the pool of zinc, a strong bond occurs between the iron in the wire and the zinc, forming a sheet of distinct iron-zinc alloys.
Extraction. We then gradually extract the wire from the zinc bath. We control the extraction rate to enable excess zinc to drain off and ensure an even coating on the final product.
Quenching. We then quickly cool the coated wire in water or a cooling solution to solidify the protective zinc coating and complete the galvanizing process.

Our technique generates galvanic protection that safeguards against the elements.

Electro Galvanized Steel Wire | Supplier - SteelPRO Group

Electro Galvanized Steel Wire

SteelPRO Group is an electro-galvanized steel wire supplier and manufacturer with various sizes and specifications to choose from to meet different application needs. Our products are manufactured using advanced electro-galvanizing technology to ensure excellent corrosion resistance and durability. We provide customized processing services such as cutting and straightening. With reliable delivery time and flexible payment methods, SteelPRO Group also provides hot-dip galvanized steel wire, steel sheets, coils, tubes, PPGI, roofing sheets, etc. to support your construction, industrial and DIY projects.

Standards: ASTM A641, ISO , etc.
Grades: Q195, Q235, G450, G550, etc.
Wire gauge: 8-24 gauge, 14 gauge, 16 gauge, 12 gauge, etc.
Technology: Electro Galvanizing, Cold Drawing
Special Use: Communication equipment, medical equipment and brushes, cables, filters, high-pressure pipelines, etc.
Form: Coil, Spool, Rope, Mesh
Certification: ISO , CE

Electro Galvanized Steel Wire

Our economical electro-galvanized steel wire is a strong protective layer formed by the electroplating process. It is very corrosion-resistant and suitable for use in wet or chemically corrosive environments, such as agricultural fencing, electrical wiring and construction. Although electro-galvanized steel wire may not be as durable as hot-dip galvanized steel wire, it is more than enough for most daily applications. Compared with traditional hot-dip galvanized steel wire, electro-galvanized steel wire has a thinner zinc layer, but this also makes it more flexible when processing and forming, making it easier to bundle, weld, etc. Our electro-galvanized steel wire has excellent tensile strength and yield strength, and can withstand greater loads and is very reliable. If you have other questions or need further information, please feel free to contact us!

Product Specifications

Product Name Electro Galvanized Steel Wire Wire Diameter 0.15mm – 8.00mm Wire Coil Weight 20-kg Wire Coil Length Varies by coil weight, common lengths include 100 m, 200 m, 300 m, Customized Coil Outer Diameter 800 – mm Coil Inner Diameter 400 – 600 mm Zinc Layer 20-400g/m², g30, g40, g60, g90, etc. Elongation ≥10% Tensile strength 350–700 MPa Load strength 150 – N Coating Material Polyester (PE), Silicone Polyester (SMP), High Durable Polyester (HDP), Fluoropolymer (PVDF) Surface Treatment anti-finger print/skin pass/oiled/dry/chromated/Embossed/Lamination Test Zinc Coating Thickness Test, Adhesion Test, Peel, Bend, Salt Spray Test, Tensile Test, Elongation, etc. Tolerance ±1% Processing Service Bending, Welding, Decoiling, Cutting, Punching Invoicing By actual weight Delivery Time 7-15 days Payment T/T, L/C, Credit Card Port Shanghai, Qingdao or according to your requirement Packaging Details In bundles, in bulk, customized packing

Chemical Compositions

ElementCarbon (C)Silicon (Si)Manganese (Mn)Phosphorus (P)Sulfur (S) Typical Percentage (%)0.05 – 0.300.10 – 0.500.30 – 0.90≤ 0.04≤ 0.04

Mechanical properties

PropertyValue Tensile Strength (MPa)350 – 600 Yield Strength (MPa)250 – 450 Elongation (%)10-20 Vickers Hardness (HV)100 – 200 Brinell Hardness (HB)100 – 180 Rockwell Hardness (HRB)60 – 90 Elastic Modulus (GPa)200 – 210

Industries & Applications

Electrical Applications: Galvanized steel wire is commonly used in electrical connections and conductors, providing good electrical conductivity and corrosion resistance.
Fencing and Security: Used to build fences and security barriers to protect farmland, commercial properties and residential areas.
Agricultural Support: Suitable for supporting plants, crops and trellises due to its lightness and high strength.
Construction Tie Wire: In construction, galvanized steel wire is used to fix rebar and reinforce structures to ensure stability.
Packaging and Bundling: Widely used in the packaging and transportation industry to bundle materials for safe transportation.
Automotive Industry: Used in automotive connectors and wiring harnesses to meet corrosion resistance and strength requirements.
Craft and Decorative Uses: Suitable for handicrafts and DIY projects, making decorations and lightweight structures.
Special Engineering Applications: Used to connect and fix equipment in some highly corrosive environments (such as chemical plants and marine facilities).

Other Infomation

To distinguish between electrogalvanized steel wire and hot-dip galvanized steel wire, you can use the following simple methods:

Observe the appearance: the surface of electrogalvanized steel wire is smooth and bright, while the surface of hot-dip galvanized steel wire is rough and matte zinc gray.
Check the thickness of the zinc layer: the zinc layer of electrogalvanized steel wire is thinner and suitable for slightly humid environments; the zinc layer of hot-dip galvanized steel wire is thicker and suitable for humid or harsh environments.
Touch and scratch: the zinc layer of electrogalvanized steel wire is fragile and easy to scratch off; the zinc layer of hot-dip galvanized steel wire is stronger and less susceptible to damage.

When choosing, please consider the following points:

Use environment: choose hot-dip galvanizing in humid or outdoor environments, and electrogalvanizing in indoor or dry environments.
Load requirements: choose hot-dip galvanizing when carrying large loads, and electrogalvanizing is suitable for lighter loads.
Processing requirements: electrogalvanized steel wire is easier to process and is suitable for electrical connections and DIY projects; hot-dip galvanizing is more durable.
Budget: Electro-galvanized steel wire is cheaper and suitable for projects with limited budgets; hot-dip galvanizing, although slightly more expensive, is more cost-effective in the long run.

We at SteelPRO Group offer high-quality electro-galvanized steel wire and hot-dip galvanized steel wire to meet your various needs. If you have any questions, please feel free to ask us!

Our Inventory

SteelPRO Group uses advanced manufacturing facilities, cutting-edge technology and automated production lines to ensure high efficiency and consistent quality. With a skilled workforce committed to strict quality control, we maintain high standards at every stage of production. Our strategic partnerships increase our supply chain efficiency, allowing us to quickly meet high-demand orders. We are committed to innovation and sustainability, providing galvanized steel solutions that meet the changing needs of our customers.

Main products: Electro galvanized steel wire, steel pipes, steel plates, steel coils, steel bars, steel strips, stainless steel series, carbon steel series, high-strength steel series, nuclear grade steel, galvanized steel, steel for wind and solar energy, etc.

Packing

At SteelPRO Group, we ensure that all our products are carefully packed to prevent damage during transportation. Our packaging is designed to withstand various shipping conditions while maintaining the integrity of the materials. We utilize durable materials and methods to ensure safe delivery to our clients. Our products are exported to regions including the Middle East, South America, Africa, Southeast Asia, and others, reflecting our commitment to serving a global market with high-quality galvanized steel solutions.

For more Electro Galvanized Wireinformation, please contact us. We will provide professional answers.

Our Service

1.Welding

2.Metal Fabrication

3.CNC Machining

4.Lathe

5.Forming

6.OEM/ODM

7.Quenching

8.Tempering

How to store electrogalvanized steel wire to maintain its quality?

To maintain the quality of electrogalvanized steel wire, it is recommended to store it in a dry, ventilated environment, away from moisture and direct exposure to sunlight to prevent the zinc layer from being damaged.

What is the applicable temperature range of electrogalvanized steel wire?

Electrogalvanized steel wire performs best at room temperature and is recommended to be used in an environment not exceeding 200°C to avoid the zinc layer losing its protective effect.

How does SteelPRO Group respond to customer feedback?

We value the feedback of every customer and have a dedicated team responsible for collecting and processing customer opinions. We will continuously improve our products and services based on customer suggestions to meet customer needs.

How much load can electrogalvanized steel wire withstand?

The load-bearing capacity of electrogalvanized steel wire depends on its diameter and application. Generally speaking, the larger the wire diameter, the stronger the load-bearing capacity and is suitable for a variety of different applications.

How to judge the quality of electrogalvanized steel wire?

The quality of electrogalvanized steel wire can be evaluated by checking the uniformity and smoothness of the zinc layer as well as the tensile strength. The zinc layer of our products is uniform and strong, ensuring long-term use.

What delivery options does SteelPRO Group offer?

We offer a variety of delivery options, including standard shipping and expedited delivery, to meet our customers’ needs. Specific delivery times depend on order volume and destination.

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