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Help CenterHot Dipped Galvanized Steel Grating 3mm Thickness 30x100mm Mesh Load Capacity 4kN/m²
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Product Overview: As a professional manufacturer based in Hengshui, Hebei, China, Hengshui Ruibin New Materials LLC has been dedicated to producing high-quality steel gratings since 2019. With a factory covering 1,000–3,000 square meters and a skilled team of 101–200 employees, we combine advanced production techniques with rigorous quality control to deliver reliable solutions for industrial, commercial, and infrastructure projects. Our Hot Dipped Galvanized Steel Grating with 3mm thickness, 30x100mm mesh, and a load capacity of 4kN/m² is engineered to provide exceptional strength, durability, and corrosion resistance—ideal for heavy-duty applications where safety and longevity are critical.
This product undergoes a thorough hot-dip galvanizing process, which forms a thick, uniform zinc coating that protects the steel from rust and environmental damage, even in harsh outdoor or chemical-exposed environments. The precise 30x100mm mesh design ensures excellent load distribution while maintaining slip resistance and easy drainage. Whether used for platform walkways, trench covers, stair treads, or industrial mezzanines, this grating offers a cost-effective, low-maintenance solution that meets rigorous performance standards.
Key Features & Technical Specifications
- Superior Corrosion Protection: Hot-dipped galvanized coating (average 85µm thickness) provides long-lasting resistance against rust, moisture, and chemical exposure, extending product lifespan by decades compared to untreated steel.
- High Load Capacity: Rated at 4kN/m² (approximately 408 kg/m²), this grating is suitable for pedestrian walkways, light vehicle traffic, and industrial platforms without deformation.
- Precise Mesh Geometry: 30x100mm (center-to-center) rectangular openings optimize weight-to-strength ratio, allow debris and liquid to pass through, and minimize the risk of slips.
- 3mm Thick Bearing Bars: Made from high-quality low-carbon steel strips, each bearing bar is 3mm thick with a consistent flat surface for easy welding and assembly.
- Customizable Dimensions: Available in standard panel sizes (e.g., 1m x 6m) or custom lengths and widths with cutouts, notches, and banding options to fit specific project requirements.
- Easy Installation & Maintenance: Lightweight design (approx. 18–22 kg/m² based on configuration) reduces handling costs; zero maintenance needed after installation due to galvanized finish.
- Fire & Impact Resistant: Steel grating is non-combustible and withstands heavy impacts, making it a safe choice for fire-prone or high-traffic areas.
| Parameter | Value |
|---|---|
| Material | Low-carbon steel (Q235 / Q235B) |
| Surface Finish | Hot-dipped galvanized (to ASTM A123 / equivalent) |
| Bearing Bar Thickness | 3 mm |
| Mesh Size (Center-to-Center) | 30 mm (clear opening ~27mm) x 100 mm (clear opening ~97mm) |
| Load Capacity | 4 kN/m² (uniformly distributed load) |
| Standard Panel Size | 1000 mm wide x 6000 mm long (customizable) |
| Weight per m² | Approx. 20 kg (varies with cross bar spacing) |
| Cross Bar Spacing | 50 mm or 100 mm (standard 100 mm) |
| Application Temperature | -40°C to +400°C (galvanized coating performance) |
Why Choose Our Steel Grating?
Our hot-dipped galvanized steel grating offers several tangible benefits for your projects:
- Cost Efficiency: Lower lifecycle cost due to minimal maintenance and long service life (typically 20–50 years in mild environments).
- Safety First: The open mesh design reduces slipping hazards and prevents accumulation of water, oil, or debris, meeting OSHA and international safety standards.
- Versatility: Suitable for indoor/outdoor use, including chemical plants, oil refineries, power stations, wastewater treatment, and commercial buildings.
- Faster Project Completion: Standard panels are ready to ship; custom sizes can be fabricated quickly with our in-house laser cutting and welding equipment.
- Eco-Friendly: Steel is 100% recyclable, and the galvanizing process produces minimal waste compared to painting or other coatings.
Trust & Reliability from a Global Exporter
Since our establishment in 2019, Hengshui Ruibin New Materials LLC has been steadily growing, achieving an annual export value between US$2.5 Million and US$5 Million. Our products are shipped from the major ports of Tianjin and Qingdao, reaching customers across North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. With a factory size of 1,000–3,000 square meters and a dedicated team of 101–200 professionals, we ensure every batch of grating meets stringent quality requirements through systematic inspections and load testing.
We understand that overseas buyers need reliable partners. That’s why we offer flexible customization, competitive pricing, and on-time delivery—backed by responsive after-sales support. Whether you need a small trial order or a large container shipment, we are committed to providing a seamless procurement experience. Contact us today for a quote, and let our hot-dipped galvanized steel grating contribute to the safety and efficiency of your next project.
Frequently Asked Questions (FAQ)
1. What does the 4kN/m² load capacity mean in practical terms?
4kN/m² (kilonewtons per square meter) is equivalent to approximately 408 kilograms per square meter under a uniformly distributed load. This means the grating can safely support heavy foot traffic, light maintenance vehicles, or equipment up to that limit. For concentrated loads, safety factors are applied—contact us for specific engineering data.
2. Can the grating be cut to custom sizes? Do you offer notches or holes?
Yes, we fully customize the dimensions including length, width, and cutouts for pipes, columns, or drainage. Notches, banding, and serrated surfaces for extra slip resistance are also available upon request. Please provide a drawing or specify requirements when ordering.
3. How is the grating packaged for export? Is it suitable for ocean freight?
Standard packaging includes steel strapping, wooden pallets, and weatherproof wrapping to protect against moisture during transit. For small orders, we use sturdy corrugated cartons. All packaging meets international shipping regulations and can be customized to your destination port.
4. What is the typical lead time for production?
For standard panel sizes (e.g., 1m x 6m), lead time is 15–20 working days after order confirmation. Custom orders may require 20–30 working days depending on complexity. We can expedite rush orders subject to material availability.
5. Does the hot-dipped galvanized coating require any maintenance?
No. The zinc coating forms a protective layer that self-heals minor scratches over time. In normal atmospheric conditions, no painting or additional coating is needed. For aggressive environments (e.g., coastal or acidic industrial settings), we recommend a thicker coating or optional epoxy finish—please consult our technical team.
6. What is the difference between hot-dipped galvanized and electro-galvanized grating?
Hot-dipped galvanizing (HDG) involves immersing the steel in molten zinc, resulting in a thick, durable coating (typically 65–100µm). Electro-galvanizing produces a thinner coating (5–20µm) which is less resistant to corrosion. Our product uses HDG for superior long-term protection in outdoor or moist environments.
7. Do you provide samples? How can I test the product quality?
Yes, we offer free samples (shipping cost paid by buyer) for evaluation. You can request a 300mm x 300mm sample to check thickness, coating uniformity, and load performance. Bulk orders include a mill test certificate and inspection reports upon request.
8. What payment terms do you accept? Do you ship to my country?
We accept T/T (wire transfer), L/C at sight, and other terms negotiable. Our main export markets cover over 30 countries across all continents. We work with reliable freight forwarders to ensure safe delivery to your port or doorstep. Contact us for a shipping cost estimate.
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