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Grating (also known as steel grating) is an open steel structure made of load-bearing flat steel and crossbars arranged at a certain interval, connected by welding (such as pressure welding, through-lock welding, etc.) or press-locking. Castings are made by pouring liquid metal (such as iron, steel, aluminum, etc.) into a mold cavity that adapts to the shape of the part, and then cooling and solidifying to obtain a blank or part. Its core process is liquid metal forming, which is suitable for producing parts with complex shapes, especially those with internal cavities.
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Parameter Category |
Specific Parameters |
Common Specifications/Descriptions |
Common Specifications/Descriptions |
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Materials |
Main Materials |
Ductile Iron (QT450-10), Gray Cast Iron (HT200/HT250) |
Ductile iron is the most commonly used and recommended material due to its high strength and toughness. |
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Tensile Strength |
QT450-10: ≥450 MPa; HT250: ≥250 MPa |
Ductile iron has significantly higher strength than gray cast iron. |
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Elongation |
QT450-10: ≥10%; HT250: <1% |
Ductile iron has excellent toughness and is not prone to brittle fracture. |
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Dimensions |
Standard Panel Dimensions (L x W) |
1000mm x 1000mm, 1000mm x 500mm, 600mm x 600mm, etc. |
Custom sizes available based on design requirements. |
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Thickness (T) |
25mm, 30mm, 35mm, 40mm, 45mm, 50mm, etc. |
Thickness is a key factor in determining load-bearing capacity. |
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Clear Aperture Width (A) |
15mm, 20mm, 25mm, 30mm, 35mm, 40mm, etc. |
Refers to the size of the opening. |
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Pitch |
30mm, 35mm, 40mm, 45mm, 50mm, 60mm, etc. |
Refers to the center-to-center distance between adjacent load-bearing bars. |
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Load-bearing bar thickness |
5mm - 8mm (depending on overall thickness T) |
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Performance Parameters |
Safety Load (Uniformly Distributed) |
3 kN/m², 5 kN/m², 10 kN/m², 15 kN/m², etc. |
Select the safety load level based on the intended use (e.g., sidewalk, driveway). |
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Deflection |
< 1/200 of the span |
Maximum bending deformation under standard load. |
High Strength and Lightweight
Welded grating features a grid structure of interlaced flat steel and crossbars, offering high load-bearing capacity. Optimized design reduces material consumption and achieves lightweight performance.
Excellent ventilation, lighting, and drainage
The grid-like design allows for ventilation rates of 30%-80%, effectively promoting air circulation. The gaps between the grids facilitate drainage and light, making it suitable for humid or rainy environments.
Anti-Slip and Corrosion Resistance
The surface can be punched to increase friction and prevent slipping. Hot-dip galvanizing or stainless steel significantly improves corrosion resistance and extends service life.
Easy Installation and Simple Maintenance
The modular design allows for quick installation, while the durable structure reduces maintenance costs.
Heavy-duty grid casting
Heavy-duty grid castings are designed to support high traffic loads and withstand heavy-duty applications. They are commonly used in roadways, intersections, and areas with high vehicular traffic. These grid castings are manufactured using durable materials and are engineered to have higher weight capacities. Heavy-duty grid castings typically have thicker frame sections and tighter bar spacing to provide the necessary strength and durability. They are ideal for use in demanding environments where heavy loads and frequent traffic are present.
Light-duty grid casting
Light-duty grid castings are suitable for applications with lighter traffic loads and less frequent vehicular movement. They are commonly used in parking lots, road shoulders, sidewalks, and lightweight infrastructure. Light-duty grid castings are manufactured using materials that provide adequate strength and durability for lighter applications. Compared to heavy-duty castings, light-duty grid castings may have thinner frame sections and wider bar spacing. Using light-duty grid castings in appropriate applications helps to reduce material costs and optimize project budgets.
Floor grid plate casting
The floor grid plate castings provide support and drainage in various industrial and commercial flooring applications. They are often used in places such as factories, warehouses, power plants, and service stations. The floor grid plate castings typically have larger openings to allow for increased airflow and drainage. Additionally, the bar spacing may be optimized to provide support for foot traffic and equipment without compromising drainage efficiency. Using floor grid plate castings enhances facility functionality, prevents water accumulation, and improves workplace safety.
Decorative grid plate casting
Decorative grid plate castings serve both functional and aesthetic purposes. They provide access to underground utilities while adding visual appeal to urban infrastructure. Decorative grid plate castings are typically installed in sidewalks, plazas, and landscaped areas. They may feature intricate patterns or designs that blend with the surrounding architecture and landscaping. Aside from functionality, the decorative grid plate castings enhance the beauty of public spaces and contribute to the overall urban design. Meanwhile, the options for materials, finishes, and customization allow for a wide range of choices to suit specific project requirements and design preferences.
In the chemical industry: Grid plate castings made of stainless steel or iron alloys are used as reactors, vessels, and even catalysts. In the food industry, heavy-duty grid plate castings are used in food processing industries to facilitate high-temperature cooking or drying of food items, thus increasing food shelf life.
Grid plate castings are also used in the mining industry: The grid plate casting serves as a drainage surface in mines. It allows water to flow into the drainage system while preventing large rocks from falling into the drainage pipes and clogging the pipes.
In the oil industry: Grid plate castings serve as a platform for storing oil pipes. Other applications of grid plate casting are in the construction industry, where it strengthens buildings. In the automotive industry, grid plate castings are used to make high-tensile car bodies.
Material Quality
The material quality of an iron grid plate casting is significant for both performance and longevity. Buyers should ensure that the supplier has used premium raw materials to make the casting. This not only boosts its lifespan but also guarantees that the grid plate can handle high temperatures and weights with ease.
01
Applicable Stove Types
Not all iron grid plate castings are one-size-fits-all. The buyer needs to think about the specific types of stoves they aim to use these grid plates for. To avoid any future compatibility troubles, they should choose grid plate castings that are likely to work with the stoves they already have.
02
Design
The design of an iron grid plate casting affects both its performance and usability. When selecting a grid plate, the buyer must consider factors like bar spacing and overall structure. These features can affect how heat is distributed and how easily the grid plate is managed.
03
Supplier Reputation
The reputation of the supplier can significantly impact the decision-making process. A well-known supplier has generally built a firm name in the sector via years of endeavor. They must offer a variety of iron grid plate castings that meet various needs. Buyers can rely on their expertise and select with confidence.
04
Grid Plate Size
Grid plate size is a crucial factor to consider when choosing iron grid plate castings. The buyer's need for different-sized stoves will determine the appropriate dimensions. It is important to ensure that the selected grid plates will fit perfectly in the intended stoves, providing optimal support for cookware.
05
The specifications for grid plate castings will depend on the intended use, especially if it is an industry or residential fungtion. Material specifications usually feature cast iron, when with the resilience of the material, it is also fire resistant. Furthermore, it can withstand great weight and pressure without cracking or breaking. Cast iron grid plate castings can last for a very long time. When used these years, provided the grid casting maintenance tips have been followed, many still look new or almost new.
Another important specification of the grid plate cast is the weight. This usually varies according to the size and shape. On average, a grid plate casting used for vehicle passage will weigh somewhere around 100 kg or more. This is because it has to bear the weight of the vehicles passing on it. Besides that, another important specification to consider is the load-bearing capacity.
Grid plate castings have different load-bearing capacities according to their size and shape. The load-bearing capacities of grid plate castings, on average, is anything from 10 tons to 60 tons. Only the manufacturer can tell the exact load-bearing capacity and specifications of the grid plate casting. If the grid plate casting is overlaid would be in an industrial area where heavy vehicles pass daily, the load-bearing capacity must be high. If placed somewhere in a residential area, it could be lower.
Finally, the design and shape of a grid plate casting will differ. The kind of material it's used for and the overall purpose will also affect it. Some grid plate castings are rectangular. Others round. Some are small and can only take 2 feet by 2 feet space. Other are larger and are usually found in parking lots.
With good grid casting maintenance, these materials can stand the test of time and serve their purpose for many years. Here are some simple tips that can help business owners use grids for a longer time. Always remove debris from the grid plate casting. That means, when rain or water flows, it should not be allowed to collect and stay in the casting.
The presence of stagnant water encourages the growth of moss and algae, and over time, this could lead to the degradation of the grid plate casting. Use a vacuum with high suction power to remove debris. Always check for damages. Owners should always make it a point to routinely inspect the grid plate casting. Any damage should be spotted and attended to before they become worse.
Routinely inspection can also help in the early detection of any potential issues which, if negligent, may call for more expensive repair damages. Some areas with grid plate casting should not be allowed to go unnoticed. Water should not be allowed to flow through without routine inspection since, over time, sediment can accumulate at the bottom, which, if not addressed, can damage the grid plate casting.
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