Galvanized Wire: Specifications and Sizes

Galvanized wire is a versatile material used in various applications, from weaving wire mesh to fencing. It's manufactured by drawing low carbon steel wire and applying a zinc coating to enhance corrosion resistance.

Electro-galvanized Wire

Electro-galvanized wire is a type of galvanized wire that uses a thinner zinc coating applied through an electroplating process.

• Zinc Coating: Thinner layer compared to hot-dip galvanized wire. Offers moderate corrosion resistance, suitable for indoor applications or mild environments.
• Material: Primarily uses low carbon steel for its good balance of strength and formability.
• Wire Gauge: Standard sizes typically range from 8# to 16# (BWG), translating to diameters of approximately 3.2mm (0.126 in) to 1.3 mm (0.051 in).

Applications: Due to the thinner zinc coating, electro-galvanized wire is generally more cost-effective:

• Weaving wire mesh for screens and filters
• General purpose fencing
• Binding and wrapping
• Crafts and DIY projects

Hot-Dip Galvanized Iron Wire

Hot-dip galvanized iron wire offers a thicker and more robust zinc coating compared to electro-galvanized options.

Wire Gauge:

Hot-Dip Galvanized Wire: Offers a wider range of gauge sizes, typically from 8# to 24# (BWG), translating to diameters of approximately:

• 3.2 mm (0.126 in)
• 0.51 mm (0.020 in)

Material:

• Hot-Dip Galvanized Wire: Often utilizes high-carbon steel for its enhanced strength, making it suitable for demanding applications.

Zinc Coating:

• Hot-Dip Galvanized Wire: The hot-dip process creates a thicker and more adherent zinc layer compared to electro-galvanizing. This provides superior corrosion resistance, making it ideal for outdoor environments or areas with higher humidity.

Applications:

Hot-dip galvanized iron wire, due to its thicker zinc coating and superior corrosion resistance, is commonly used in:

• Construction and infrastructure projects like fencing for highways and railways
  Marine applications where exposure to salt water is a concern
• Harsh weather environments
• Situations requiring increased structural strength

Nots:

• Standards like ASTM A-475 can be used to specify the mechanical properties of the wire, such as tensile strength and elongation.
• Packaging options for galvanized wire can vary depending on the gauge, quantity, and application. It can include coils, spools, or cut lengths.