GI Gratting Bar
GI Grating Bar
GI (Galvanized Iron) grating bars are robust metal structures primarily used in industrial and commercial applications. These grates are manufactured from steel and coated with zinc through a galvanization process, ensuring resistance against corrosion, rust, and wear. They are widely used in flooring, walkways, drainage covers, stair treads, and industrial platforms.
Specifications
GI grating bars are available in various materials, sizes, and configurations to meet diverse industrial requirements. Below are some key specifications:
| Specification | Details |
|---|---|
| Material | Mild Steel, Stainless Steel, Carbon Steel with GI Coating |
| Bar Thickness | 3 mm – 10 mm |
| Bar Spacing | 25 mm, 30 mm, 40 mm |
| Finish | Hot-Dip Galvanized, Electro-Galvanized |
| Coating Thickness | 85 µm (as per ASTM A123 standard) |
| Standard Panel Size | 1000 mm x 6000 mm (Custom sizes available) |
Types of GI Grating Bars
There are different types of GI grating bars, each designed for specific applications. Below are the most common types:
- Welded Steel Grating: Manufactured by welding the load bars and cross bars at their junctions to provide strength and durability. Ideal for heavy-duty applications such as industrial platforms and walkways.
- Press-Locked Grating: This type is manufactured by pressing cross bars into load bars under high pressure. It has a smooth appearance and is commonly used in commercial and architectural applications.
- Swage-Locked Grating: Uses mechanical swaging to lock the bars together, creating a strong yet lightweight structure suitable for pedestrian walkways and stair treads.
- Heavy-Duty Grating: Designed for areas that experience heavy loads, such as highways, docks, and airports. Features a higher bar thickness (6 mm - 10 mm) for extra strength.
- Serrated Grating: Features serrated edges for better slip resistance. Used in environments where safety is a priority, such as offshore platforms, refineries, and wet conditions.
- I-Bar Grating: Uses load bars with an I-shaped profile, reducing weight while maintaining strength. Commonly used in industrial platforms and maintenance walkways.
| Type | Description | Applicable Standards |
|---|---|---|
| Welded Steel Grating | Manufactured by welding the load bars and cross bars at their junctions to provide strength and durability. Ideal for heavy-duty applications such as industrial platforms and walkways. | ANSI/NAAMM MBG 531, ASTM A123, BS 4592 |
| Press-Locked Grating | Produced by pressing cross bars into load bars under high pressure. It has a smooth appearance and is commonly used in commercial and architectural applications. | EN 10025, ASTM A36, ASTM A123 |
| Swage-Locked Grating | Uses mechanical swaging to lock the bars together, creating a strong yet lightweight structure suitable for pedestrian walkways and stair treads. | NAAMM MBG 531, ASTM A123 |
| Heavy-Duty Grating | Designed for areas that experience heavy loads, such as highways, docks, and airports. Features a higher bar thickness (6 mm - 10 mm) for extra strength. | ASTM A36, ASTM A1011, ASTM A572 |
| Serrated Grating | Features serrated edges for better slip resistance. Used in environments where safety is a priority, such as offshore platforms, refineries, and wet conditions. | OSHA 1910, ANSI/NAAMM MBG 531 |
| I-Bar Grating | Uses load bars with an I-shaped profile, reducing weight while maintaining strength. Commonly used in industrial platforms and maintenance walkways. | ANSI/NAAMM MBG 532, ASTM A123 |
Production Range
The production of GI grating bars varies based on project specifications and industrial needs. Below are common production parameters:
| Parameter | Range |
|---|---|
| Standard Panel Size | 1000 mm x 6000 mm (Customizable) |
| Bearing Bar Spacing | 25 mm, 30 mm, 40 mm |
| Cross Bar Spacing | 50 mm, 100 mm |
| Load Bar Thickness | 3 mm – 10 mm |
| Galvanization Process | Hot-Dip Galvanization (ASTM A123 or ISO 1461 standard) |
| Customization Options | Cutting, welding, bending, painting available as per project requirements |
Advantages of GI Grating Bars
- Corrosion Resistance: Zinc coating provides excellent protection against rust and weather conditions.
- High Strength: Suitable for heavy loads in industrial environments.
- Durability: Long-lasting material that requires minimal maintenance.
- Slip Resistance: Serrated grating offers enhanced grip and safety.
- Customizable: Available in different sizes and coatings to meet specific needs.
- Lightweight & Easy Installation: Designed for easy handling and installation.
Applications of GI Grating Bars
- Industrial flooring & walkways
- Drainage covers & trench grates
- Stair treads & mezzanine floors
- Offshore platforms & marine environments
- Airports, bridges, and railway stations
- Security fencing & ventilation covers