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Help CenterWelded Serrated Carbon Steel Grating – Hot DIP Galvanized for Walkway, Platform, Trench Drain and Gutter Cover
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Welcome to Hengshui Ruibin New Materials LLC — a professional manufacturer dedicated to producing high-quality Welded Serrated Carbon Steel Grating since 2019. With a factory covering 1,000–3,000 square meters and a skilled team of 101–200 employees, we export to markets across North America, South America, Europe, Africa, Oceania, and Asia. Our hot-dip galvanized steel gratings are specially designed for walkways, platforms, trench drains, and gutter covers. The serrated surface provides enhanced slip resistance, making them ideal for industrial, commercial, and municipal applications where safety and durability are paramount.
Each panel is manufactured using advanced welding technology and certified through rigorous quality control standards. The combination of carbon steel base and hot-dip galvanized coating ensures long service life even in harsh outdoor or wet environments. Our gratings are customizable in dimensions, bar spacing, and serration patterns to meet specific project requirements.
Key Features & Technical Specifications
- Material: Premium carbon steel (Q235 / Q255) with excellent load-bearing capacity.
- Surface Treatment: Hot-dip galvanized (zinc coating) per ASTM A123 or equivalent — provides superior corrosion resistance in coastal, chemical, or high-moisture environments.
- Serrated Bearing Bars: Teeth are cut into the top surface (one side or both sides) to increase friction and prevent slipping, even when oiled or wet.
- Welded Construction: Bearing bars and cross bars are resistance-welded at each intersection, forming a one-piece rigid grid that withstands heavy loads.
- Customizable Sizes: Available in standard panel sizes (e.g., 2' x 10', 3' x 20', 4' x 24') or cut-to-size shapes, including notches, curves, and cutouts for pipes or columns.
| Parameter | Standard Values | Custom Options |
|---|---|---|
| Bearing Bar Height | 1" (25mm) – 2.5" (63mm) | Up to 6" (150mm) upon request |
| Bearing Bar Thickness | 3/16" (4.8mm) – 1/4" (6.4mm) | 1/8" (3.2mm) to 3/8" (9.5mm) available |
| Center-to-Center Spacing (Bearing Bar) | 1-3/16" (30mm) | 1-3/4" (44.5mm), 2-7/16" (62mm), etc. |
| Cross Bar Spacing | 4" (101.6mm) | 2" (50.8mm) for extra rigidity |
| Serration Pattern | Standard 1-side serrated | Both-side serrated available |
| Finish | Hot-dip galvanized (silver-gray) | Mill finish or black paint optional |
Advantages for End Users
- Safety: Serrated profile reduces slip accidents by up to 60% compared to smooth bars, making it suitable for oily, wet, or snowy surfaces.
- Long Life: Hot-dip galvanizing protects steel for 20+ years maintenance-free in most environments.
- Easy Installation: Panels are lightweight yet strong; they can be cut, drilled, or bolted on site. Standard panels fit common supports with minimal modification.
- High Load Capacity: The welded grid structure distributes weight evenly, meeting OSHA and ADA load requirements for pedestrian and light vehicle traffic.
- Low Maintenance: Galvanized coating heals scratches and resists rust; no painting or coating required.
- Versatile Applications: Perfect for outdoor walkways, trench covers in parking lots, platform grating in chemical plants, drainage gutters, and mezzanine flooring.
Quality Assurance & Trusted Supply
At Hengshui Ruibin New Materials LLC, we have been delivering reliable grating solutions since 2019. With an annual export value between US$2.5 Million and US$5 Million, our products reach clients across six continents. Our manufacturing facility in Hengshui, Hebei province operates with strict quality control procedures, from incoming raw steel inspection to final galvanized weight verification. We ship through the Port of Tianjin and Port of Qingdao, ensuring timely delivery worldwide.
We understand that every project is unique. Whether you need a custom sized trench cover for a municipal road or a heavy-duty platform for an industrial plant, our engineering team can provide technical drawings and load calculations. We also offer third-party testing reports upon request. Choose our welded serrated carbon steel grating for a cost-effective, durable, and safe solution that meets international standards.
FAQ – Frequently Asked Questions
- 1. What is the difference between serrated and plain bar grating?
- Serrated grating has teeth cut into the top surface of the bearing bars, providing additional slip resistance. Plain grating is smooth. Serrated is recommended for walking surfaces where slip hazards exist, especially in wet or oily conditions.
- 2. Can the grating be cut to size on site?
- Yes, our welded steel grating can be easily cut using an angle grinder or plasma cutter. However, we recommend ordering custom sizes to save labor and minimize waste. We can provide precisely cut panels with notches, curves, or end banding.
- 3. What is the typical load capacity of your grating?
- Load capacity depends on bar height, thickness, and spacing. As a reference, standard 1-1/4" x 3/16" bars spaced at 1-3/16" can support over 300 psf uniformly distributed load. Contact us for specific load tables for your chosen configuration.
- 4. How long does hot-dip galvanizing last?
- In most outdoor environments, hot-dip galvanizing lasts 20–40 years without maintenance. In highly corrosive industrial settings, the life can be 10–15 years. The zinc coating protects steel sacrificially.
- 5. Do you provide custom serration patterns?
- Yes. We offer both single-side serrated (standard) and both-side serrated options. The serration depth and pitch can be modified per your requirement. For special patterns, please provide a drawing or sample.
- 6. Can the grating be used for trench drains with heavy traffic?
- Absolutely. Our heavy-duty grating with thicker bars (e.g., 1/4" or 3/8") and closer spacing (e.g., 1-3/16") can handle vehicular traffic up to 40 tons, depending on support spacing. We recommend adding cross bars at 2" centers for maximum strength.
- 7. What is your minimum order quantity (MOQ)?
- Our standard MOQ is 10 square meters for stock sizes. For custom dimensions, MOQ may vary. Small sample panels of 1 square meter are available for evaluation.
- 8. How do you pack the grating for export?
- Gratings are bundled with steel strapping on wooden pallets or steel skids. For small orders, we use plywood crates. Each bundle is clearly labeled with size, quantity, and heat number to ensure traceability.
Looking for a reliable supplier of welded serrated grating? Contact Hengshui Ruibin New Materials LLC today for a quote or technical consultation. We are ready to support your projects with high-quality products and professional service.
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