CE-Certified Hot-Dip Galvanized Steel Grating with Customizable Sizes for Outdoor Construction
Steel grating is manufactured from high-quality carbon steel or stainless steel, featuring flat steel arranged crosswise at specific intervals with cross bars, welded into a grid pattern with square openings. The exterior is typically hot-dip galvanized for superior corrosion resistance.
Steel grating offers excellent ventilation, light transmission, anti-slip properties, strong load-bearing capacity, heat dissipation, easy cleaning, and simple installation.
- Hot-dip galvanizing: Applied after hemming completion, providing high corrosion resistance and significantly extending service life.
- Painting: Spraying, painting, or dipping treatments available according to specific customer requirements.
- Welding: For permanent installations requiring no disassembly. Each corner requires a fillet weld with minimum 20mm length and 3mm height on the first flat steel.
- Installation clamps: Preserves zinc layer and allows easy disassembly. Minimum 4 clamps per plate, with additional clamps required for longer plates.
| Material | Carbon Steel, Stainless steel, Aluminum |
|---|---|
| Size | Customized Size |
| Color | Silver |
| Surface Treatment | Hot-dip galvanized, Painted, Powder coating |
| Application | Platforms, stairs, Drainage ditch and protective fence |
| Type | Plain grating, Serrated grating, I-type grating |
| Bearing Bar Type | Plain, Serrated, I-type Bar |
| Bearing Bar Dimensions (H x T) | 20x3/20x5/25x3/25x5/30x3/30x5/32x5/40x5/50x5/etc. |
| Bearing Bar Pitch | 20/30/40/50/60/80/100mm |
| Cross Bar | 6/8/10mm |
| Cross Bar Pitch | 50/100mm |
- 30mm Spacing (Common Type): Meets US standards with strongest surface impact resistance. Ideal for drain covers, stair treads in power plants, sewage treatment plants, chemical plants, airports, and docks.
- 40mm Spacing (Economical & Lightweight): Complies with British standards for walkways and stairs. Perfect for small span applications like warehouse shelves, trestles, and protective fences.
- 60mm Spacing (Mining Industry): Specifically developed for mining applications. Allows mineral splashes to pass through, maintaining clean and safe surfaces. Used in conveyor line walkways and processing plants.
- By Welding Method: Pressure welding, inlaying, locking, and through welding types
- By Bearing Bar Shape: Plane type, tooth type, and "I" type
- By Material: Stainless steel grating and carbon steel grating
Steel gratings are renowned for their high strength and durability, serving critical roles across multiple industries:
- Bridge guardrails and drainage ditch covers in municipal engineering
- Factory platforms and petrochemical plant equipment supports in industrial facilities
- Stair treads and light wells in architectural decoration
Widely used in industrial platforms, stair treads, and other applications requiring load-bearing capacity, anti-slip properties, and drainage functionality - combining performance with cost-effectiveness.
Stainless steel grating offers superior corrosion resistance and aesthetics, especially in harsh chemical or marine environments. Galvanized grating is more cost-effective for general industrial applications.
Common international standards include YB/T4001, ANSI/NAAMM, BS4592, and AS1657. These standards define dimensions, tolerances, and load requirements.
Steel grating is made from bearing bars and cross bars, offering higher load capacity and drainage performance. Expanded metal is formed by cutting and stretching metal sheets and is generally lighter-duty.
The service life of galvanized steel grating can exceed 20-30 years depending on the zinc coating thickness, environmental conditions, and maintenance practices.
Yes. Steel grating is widely used as trench covers and drainage grates because its open design allows efficient water flow while maintaining structural strength.
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