Qingdao Jude Steel Co.,Ltd is a professional manufacturer with more than 20 years of experience in manufacturing alloys, carbon steel, stainless steel and galvanized steel establised in 2001.

Main Products

stainless steel coil


Building 1, Excellence Century Center, No.31 Longcheng Road, Shibei District, Qingdao city, Shandong, China

The Guide On Galvanized Steel To Help You Know More

Galvanized steel is metal that undergoes the galvanization process. The galvanization process is the process of applying a thin coating of zinc to different types of metals. Different methods are used to galvanize metal, including hot dipping, pre-galvanizing, and electro galvanizing. You can tell that metal is galvanized when it has a pattern to it that is known as a spangle pattern. Carbon steel is the most common type of metal that we galvanized.

Different methods of galvanizing

When steel is brought into contact with molten zinc, a chemical reaction takes place, which bonds zinc on the surface of the steel. Thus, a zinc layer over steel acts as a layer that protects it from being corroded. The most common method of applying a zinc coating over steel is hot dip galvanization; however, there are various other processes that are also used for galvanizing steel, such as:

Hot dip galvanization – In this method, a steel sheet is dipped in a bath of molten zinc kept at a temperature of 860°F (460°C). When the steel comes into contact with this molten zinc, an iron zinc alloy is formed and when the steel sheet is taken out in a normal atmosphere, zinc oxide is formed, which prevents corrosion.

Zinc electroplating – In this method, a steel sheet is dipped into the zinc ion solution and an electric current is passed through it, which uniformly spreads the zinc ion solution on the metal sheet.

Mechanical plating – In this method, zinc powder, along with glass beads and a special reducing agent, are coated on the steel sheet, which bonds zinc particles on the surface of the sheet.

Sherardizing – In this method, a steel sheet is heated up to a temperature of 752°F (400°C) and passed through zinc powder. At this high temperature, diffusion between zinc and steel molecules occurs.

Continuous strip galvanizing and galvanized wire – In this method, a steel strip or steel wire is passed through a solution of molten zinc at a high speed of 590 feet (180 meters) per minute in a controlled air pumping. This applies a zinc coat on the metal sheet.

Zinc metal spray – In this method, a steel sheet is cleaned to Class III level, and then zinc powder is sprayed on top of it with the help of a plasma flame gun.

Advantages of Galvanized Steel

  1. Rust Resistance: Iron in steel is incredibly prone to rust, but zinc acts as a protective buffer between moisture, oxygen, and steel.
  2. Easy Inspection: It’s fairly simple to tell how strong a galvanized coating is, just by looking at it. Quick stress tests can tell you how thick the zinc is.
  3. Galvanizing is Cost-effective: The true cost of protecting steelwork from corrosion has to take into consideration two important elements, the initial cost of protection and the lifetime cost.
  4. Sacrificial Anode: This ensures that any damaged steel is protected by the surrounding zinc coating. It doesn’t matter if the steel section is completely exposed; the zinc will still corrode first.
  5. Galvanizing is Durable: A galvanized coating is one of the most durable forms of corrosion protection on the market. An average coating thickness of 85 microns, the same thickness as a sheet of A4 paper, can protect a steel structure for the better part of 50 years.
If you have Galvanized steel plate or coil purchase plan, please kindly let me know: 1.You need flower galvanized steel or without galvanized steel 2.Your request zinc weight like 120g…etc.
Galvanized Steel Square Tube Pipe

What industries utilize galvanized steel?

Galvanized metals are used everywhere!

The bodies of cars and many bicycles are made from galvanized metals. Some drinking water pipes are still made from galvanized steel. Cool rolled sheet metal is also frequently galvanized because it is a cheap process, and helps boost the metal’s lifespan!

Galvanized steel, in particular, is often what is used in modern “steel frame” buildings. Galvanized steel is also used to create structures like balconies, verandahs, staircases, ladders, walkways, and more. Galvanized metal is the ideal choice if your project will live outside after it’s done. Fences, roofs, and outdoor walkways, are all great choices for galvanized metal!

Tisco Galvanized Steel Options

Our galvanized steel products in stock include galvanized steel sheet, galvanized steel coil, galvanized steel bar, galvanized steel wire, galvanized steel pipe, and galvanized steel square tube.

Common uses for galvanized steel tubes include general construction purposes, manufacturing, outdoor architectural projects, and machine parts and equipment.

Easily fabricated and weldable, galvanized sheet and plate is often used for building panels, roofing, and lighting fixtures.

It is mainly produced by the continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating tank with the molten zinc to make galvanized steel plate; an alloyed galvanized steel plate. It has good coating adhesion and weldability.

The Difference Between Stainless Steel And Galvanized Steel

Here are some points of difference between the two steel types that can be used to tell them apart:

1. Composition – Galvanized steel contains regular steel which is covered by zinc, while stainless steel is made up of two separate metals mixed thoroughly together.

2. Strength – Galvanized steel is significantly weaker than stainless steel. Because galvanized steel contains only an outer layer of anti-rust coating that wears away over time, it does not provide protection against rusting for as long a period as stainless steel, which contains a protective mixture of chromium to help prevent rusting.

3. Pricing – Galvanized steel is more affordable than stainless steel.

4. Uses – Galvanized steel, due to its weaker strength and cheaper price, is used for smaller-budget projects, in general, than stainless steel. Galvanized steel finds extensively used in the construction of pipes and fittings in houses. It is also used in the manufacturing of air-conditioning equipment, creating metal roofs for houses, and chain link fencing. There is a range of products made of galvanized steel that make use of its ability to resist rusting, withstand the damage done by harsh weather, and be stronger and lighter than many other metals.

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If you are looking to purchase galvanized metal, such as galvanized steel plates and tubes, etc, Jiangsu Tisco Supply Co., Ltd can help you. Give us, located in China, a call today to inquire about purchasing metal or our services.

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