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Galvanized grating, also called galvanized steel grating or galvanized steel bar grating, refers to the steel bar grating made of mild carbon steel through hot dipped galvanized surface treatment.
Mild carbon steel provides an economical, high strength for uses in most industrial and commercial applications. And hot dipped galvanized surface treatment supplies excellent corrosion resistance performance for durability.
Steel grating is available in various material, such as stainless steel, aluminum, and galvanized steel. Among them, the galvanized steel grating is the most cost effective and economical type with long service life and high load. And it is the most widely used in both industrial, commercial and residential applications.
Our Hot Selling Galvanized Steel Grating
Press-locked
Galvanized steel grating
Press-locked Galvanized steel grating is made of low carbon steel and stainless steel. It is a grid formed by press-locking cross bars to bearing bars.
Welded
Galvanized steel grating
Welded Galvanized steel grating is made of low carbon steel or stainless steel. It is widely used in construction, petroleum, food processing plants and other industries.
Hot-dipped
Galvanized steel grating
Hot-dip galvanized steel gratings are used in many industries including chemical plants, food processing facilities, water treatment plants and power stations.
Specification for Galvanized Steel Grating
| Specification | Description |
| Material | Galvanized carbon steel |
| Manufacturing Process | Welded, swage-locked, or press-locked |
| Surface Treatment | Hot-dip galvanized |
| Surface Type | Standard plain surface, serrated surface |
| Cross Bar Spacing | Customizable, typically 2" or 4", center to center |
| Bearing Bar Spacing | Customizable, typically 15/16" or 1-3/16", center to center |
| Bearing Bar Height | Customizable, typically 20mm to 60mm |
| Bearing Bar Thickness | Customizable, typically 2mm to 5mm |
| Cross Bar Size | Customizable, typically 4mm to 10mm diameter |
| Slip Resistance | Serrated or plain surface, depending on the application |
| Installation Method | Welding, clips, or bolts and nuts, depending on the application |
| Compliance | Meets industry standards and applicable building codes, including ASTM, ISO, and ANSI/NAAMM |
The Process Flow for Galvanized Steel Grating
Step 1: Pre-Treatment
The surface of the steel gratings cleans the shot blasting or degreasing to remove rust, paint, oil, and other contaminants. Galvanized steel grating is placed in an acid bath to remove the mill scale. By using this process, a zinc-iron alloy forms on the surface of the gratings. Zinc-iron alloy has a lower melting point than steel, which is a barrier to prevent iron rusting.
Step 2: Pickling
The purpose of pickling is to remove the oxide layer on the surface of the galvanized steel grating. This is done by immersing the gratings in an acid bath. The most commonly used acid for pickling is hydrochloric acid. Because hydrochloric acid helps to remove the oxide layer quickly, it is also known as a “pickling agent.”
Step 3: Fluxing
Fluxing is a process that helps to remove impurities from the surface of the galvanized steel grating. The impurities are removed by passing a current through the gratings in an acidic solution. The most commonly used flux is zinc chloride. Zinc chloride provides a barrier against corrosion and helps to remove impurities quickly. For this cause, it is also known as a “fluxing agent”.
Step 4: Hot-Dip Galvanizing
Hot-dip galvanizing is a method in which the gratings are dipped in a molten zinc bath. By using molten zinc bath in galvanized steel grating process, a zinc-iron alloy is formed on the surface of the gratings. That’s why hot-dip galvanizing is also known as “zinc-iron alloying.” Also, hot-dip galvanizing provides a barrier against corrosion.
Step 5: Cooling
After hot-dip galvanizing, the gratings are cooled in air or water. The cooling process helps to solidify the zinc-iron alloy on the surface of the gratings. Galvanized steel grating that has been cooled in air is known as “air-cooled” grating. And galvanized steel grating that has been cooled in water is known as “water-cooled” grating.
Step 6: Passivation
Passivation is the only process flow of galvanized steel grating that is not performed in all cases. Passivation is a process in which the gratings are dipped in an acidic solution. To achieve this process, the gratings must be made of stainless steel. The primary objective of passivation is to eliminate contaminants from the exterior of the gratings.
Step 7: Packaging(1 days)
To ensure that the products are not damaged during transport, we use high-quality packing materials.the packing of steel gratings requires special care and attention. Be sure to wrap each grate in a layer of plastic film, place them in a box or crate, and fill the gaps between the grates with packing material such as styrofoam peanuts or bubble wrap. Seal the box or crate with tape and label it with the contents and the date. These packing tips will help to ensure that your steel grates are protected from rust and corrosion during storage or transportation.
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Our product experts are ready to help you at every stage of the grating design process. We are here to discuss the merits of our various products, andprovide design detail as needed. Our design services include:
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Chosen by 100,000+ Companies Worldwide
We recently purchased galvanized steel grating from Delong Metal, and we are extremely satisfied with both the product quality and the service provided. The grating is durable, corrosion-resistant, and meets all of our specifications. The galvanized coating ensures long-lasting performance even in harsh conditions, making it a reliable choice for our project. The team at Delong Metal was responsive, professional, and ensured timely delivery.
Applications
1. Hot-dip galvanized steel grating features: high strength, light structure: the solid grid pressure welding structure makes it high load-bearing, light structure, easy to be lifted, etc.; beautiful appearance, durable.
2. Hot-dip galvanized steel grating uses: widely used in petrochemical, power plant, water plant, warehouse construction, sewage treatment plant, municipal engineering, sanitation engineering and other fields of platform, walkway, trestle, trench cover, manhole cover, ladder, fence, guardrail, etc.
Galvanized Steel Grating Properties
Low Maintenance
Due to the protective zinc coating, galvanized steel grating requires very little maintenance compared to other materials. It does not need frequent painting or treatment, reducing ongoing upkeep costs and efforts over time.
Durability
The galvanization process enhances the strength and durability of the steel, making galvanized grating capable of withstanding heavy loads, impacts, and extreme conditions. It is highly resistant to wear and tear, making it a long-lasting solution for various applications.
Corrosion Resistance
Galvanized steel grating is coated with a layer of zinc through the galvanizing process, which provides excellent resistance to rust and corrosion. This makes it ideal for use in environments exposed to moisture, chemicals, or outdoor weather conditions, extending the lifespan of the grating.
Safety and Traction
Galvanized steel grating offers a non-slip surface, providing better traction and safety, especially in areas with high foot traffic or where liquids may cause slippery conditions. Its open design also allows for better drainage and ventilation, reducing the risk of water accumulation and potential hazards.
FAQ
What are galvanized steel gratings and what are they used for?
Galvanized steel gratings are a type of steel grating that has been coated with zinc to protect it from corrosion. They are commonly used in outdoor applications such as walkways, platforms, and drainage covers.
How to know if galvanized steel gratings are the right choice for my project?
There are a few factors to consider when deciding if galvanized steel gratings are the right choice for your project. First, you will need to consider the environment in which the gratings will be used. If they will be exposed to harsh weather conditions or chemicals, then galvanized steel is a good option. Second, you need to think about the weight of the gratings. If they will be used in a high traffic area, then you will want to choose a heavier duty grating. Third, you need to consider the overall cost of the project. Galvanized steel gratings are more expensive than other types of gratings, but they offer superior corrosion resistance.
What benefits does galvanized steel offer that other materials don't?
Galvanized steel gratings offer superior corrosion resistance due to the zinc coating. They are also low maintenance and easy to clean. Additionally, galvanized steel gratings are recyclable and have a long lifespan.
Are there any drawbacks to using galvanized steel gratings in my project?
One potential drawback of using galvanized steel gratings is that they can be slippery when wet. However, this can be alleviated by choosing a grating with a serrated or treaded surface. Additionally, galvanized steel gratings are more expensive than other types of gratings.
How do I care for my galvanized steel grating products once they're installed?
Galvanized steel gratings require little maintenance. You can clean them with soap and water or a mild detergent. If you need to remove tough stains, you can use a power washer. However, be sure to use a low pressure setting to avoid damaging the grating. Additionally, you should inspect the gratings regularly for any signs of damage or wear.
