AntiCorrosion Steel Grating for Drainage Covers China Factory Suppliers

Leading China factory and suppliers of premium anti-corrosion steel gratings. Ideal for petrochemical, sewage treatment, and municipal engineering, our gratings offer superior ventilation, anti-skid properties, and high load capacity. Contact us for high-quality drainage solutions at competitive FOB prices.

SupplierAnping Dongjie Wire Mesh Products Co., Ltd.www.djfencemesh.com

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About this product

Product information from the supplier.

Our premium anti-corrosion steel gratings are engineered for high-performance drainage covers, specifically designed to prevent water accumulation and ensure rapid fluid discharge. Utilizing high-grade carbon steel with superior hot-dip galvanization or stainless steel options, these gratings provide an impenetrable barrier against oxidation, making them the ideal choice for harsh industrial and municipal environments.

Beyond drainage, these versatile gratings offer exceptional ventilation, lighting, and heat dissipation properties. Whether applied in petrochemical plants, power stations, sewage treatment facilities, or architectural decorations, our steel gratings combine structural integrity with safety features like anti-skid surfaces to meet the most demanding engineering standards worldwide.

Detailed Parameters

Bearing Bar Size	20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm	Bearing Bar Pitch	25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm
Cross Bar Size	5x5, 6x6, 8x8mm (Twisted or Round bar)	Cross Bar Pitch	40, 50, 60, 65, 76, 100, 101.6, 120, 130mm
Surface Treatment	Hot dip galvanized, Cold dip galvanized, Powder coated, Painted, Black	Flat Bar Type	Plain, Serrated (tooth-like), I bar (I section)
Material Grade	Low carbon steel (ASTM A36, A1011, A569, S275JR, SS400)	Stainless Steel	SS304, SS201, SS316, SS316L, SS310, SS310S
Aluminum Option	Lightweight, corrosion resistant, fully recyclable	Standard Compliance	YB/T4001 (CN), ANSI/NAAMM (USA), BS4592 (UK), AS1657 (AUS), JJS (JPN)

Key Advantages

Extreme Corrosion Resistance

Hot-dip galvanization and high-grade stainless steel ensure long-term durability against oxidation and rust in wet environments.

Extended Lifespan

Built with high-strength materials designed to withstand heavy vehicular loads and pedestrian traffic over decades.

High Load Capacity

Optimized bearing bar configurations provide unmatched structural stability for industrial platforms and bridges.

Optimal Ventilation

Open mesh design allows for maximum light transmission, air circulation, and efficient heat dissipation.

Enhanced Safety

Available in serrated tooth-like finishes to provide superior anti-slip performance for worker safety.

Easy Installation

Modular design and standardized dimensions ensure quick deployment and effortless cleaning and maintenance.

Product Gallery

Management Platforms

Material Sourcing

Strict selection of ASTM A36 and SS304/316 raw materials to ensure structural baseline quality.

Precision Fabrication

Advanced welding and cutting processes to meet exact customer specifications for pitch and size.

Quality Control

Rigorous inspection of galvanization thickness and load-bearing capacity before shipment.

Custom Engineering

Tailored design services for complex municipal drainage and industrial architectural layouts.

Coating Management

Specialized powder coating and electrochemical polishing for highly corrosive environments.

Global Logistics

Optimized packaging and shipping to ensure damage-free delivery to international project sites.

Investment Return Comparison

Feature	Standard Steel Grating	Our Premium Anti-Corrosion Grating
Service Life	3-5 Years (Basic)	15-25 Years (Enhanced)
Maintenance Cost	High (Frequent Painting)	Ultra-Low (Galvanized/SS)
Safety Rating	Standard Slip Resistance	Maximum (Serrated Options)
Corrosion Rate	Moderate to High	Negligible (Industrial Grade)
ROI Period	Short-term Saving	Long-term Asset Value

Frequently Asked Questions

Q: Which material is best for highly corrosive coastal areas?

For coastal areas, we highly recommend Stainless Steel 316 or 316L due to their superior resistance to chlorides and salt spray, or heavy-duty Hot-Dip Galvanized steel for a balance of cost and durability.

Q: What is the difference between plain and serrated bars?

Plain bars are smooth and suitable for general use, while serrated (tooth-like) bars provide an aggressive grip to prevent slipping in oily or wet industrial environments.

Q: Can these gratings support heavy truck traffic?

Yes, by selecting larger bearing bar dimensions (e.g., 50x5mm or 75x8mm) and tighter pitches, our gratings can be engineered to support heavy vehicular loads according to ANSI/NAAMM standards.

Q: What surface treatments do you offer for architectural projects?

For architectural use, we provide powder coating in various colors, electrochemical polishing for a mirror finish on stainless steel, and anodized finishes for aluminum gratings.

Q: How do these gratings prevent water accumulation?

The open-grid structure ensures that water falls through the gaps instantly into the drainage system below, eliminating surface pooling and reducing hydroplaning risks.

Q: Do you comply with international standards like BS or AS?

Absolutely. Our products are manufactured to meet UK BS4592, Australian AS1657, USA ANSI/NAAMM, and Japanese JJS standards to ensure global quality compliance.