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Introduction of hot galvanized steel wire and cold galvanized steel wire

Aug. 16, 2019

Introduction of hot galvanized steel wire and cold galvanized steel wire

Galvanized steel wire I believe we are not unfamiliar, it is a kind of construction materials, is mainly used in cable-stayed bridge parallel steel wire cable. According to its processing mode can be divided into two, one is hot galvanized steel wire, the other is cold galvanized steel wire. Today galvanized iron wire manufacturer for you to introduce two kinds of galvanized steel wire and their differences.

1. Cold galvanized steel wire

Cold galvanizing is also called the electric galvanized, it is using electrolytic equipment fitting after degreasing, pickling, into the composition of zinc salt in the solution, and connect the cathode electrolytic equipment, across the tube placed zinco, connected to the anode electrolytic equipment, power supply is connected using current from the positive to the negative directional moving deposits a layer of zinc on the pipe fittings, cold is plated fittings galvanized after processing. Cold galvanizing (electric galvanizing) : is in the galvanizing bath through the current unidirectivity makes the zinc plating gradually on the metal appearance, the production speed is slow, the coating is uniform, the thickness is relatively thin, usually only 3-15 microns, the appearance is bright, smooth, beautiful high, the corrosion resistance is poor, generally a few months will rust.

Electro Galvanized Iron Wire

Electro Galvanized Iron Wire

2. Hot dip galvanized steel wire

Hot-dip galvanized steel wire means to pickling, phosphating and wire drawing all kinds of high quality medium or high quality carbon steel and then galvanized (hot or cold plating). Hot dip galvanizing process can be divided into two categories: off-line annealing and in-line annealing. Hot dip galvanizing: it is dipped and plated in the molten zinc solution after heating. The production speed is fast and the coating is thick but uneven. The minimum thickness allowed by the market is 45 microns and the maximum is over 300 microns. Dark color, consumption of zinc metal, with the formation of infiltration layer of base metal, corrosion resistance, outdoor environment can be maintained for decades.

Hot dip galvanized coating is thicker, generally 30-60 micron, coating corrosion resistance is higher. Suitable for outdoor work of steel parts, such as highway fences, power towers, large size fasteners and other relatively "rough" workpiece rust prevention.

3. The difference between hot galvanized steel wire and cold galvanized steel wire

Hot dip galvanized coating is thicker, generally 30-60 micron, coating corrosion resistance is higher. Suitable for outdoor work of steel parts, such as highway fences, power towers, large size fasteners and other relatively "rough" workpiece rust prevention. Hot dip galvanized steel wire surface smooth, smooth, no cracks, joints, punctures, scars and corrosion, galvanized layer uniform, strong adhesion, corrosion resistance lasting, excellent toughness and elasticity. Tensile strength should be between 900 mpa to 2200 mpa (wire diameter 0.2 mm - 4.4 mm Φ Φ). Reverse the number (0.5 mm) Φ in more than 20 times, repeated bending should be more than 13 times. Electro Galvanized Iron Wire thickness is thinner, usually only 3-15 microns, appearance is bright, smooth, beautiful degree is high, corrosion resistance is poor, general a few months will rust.

Through the above introduction I believe that we all have a certain understanding of hot galvanized steel wire and cold galvanized steel wire. If you want to know more information about galvanized steel wire, you can consult us, we will serve you wholeheartedly.


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