Custom Stainless Steel Serrated Grating Factory Leading China Suppliers of Trench Covers

Premium stainless steel serrated grating from a leading China factory. Our expert suppliers provide high-strength trench covers with precision polishing and pressure welding, eliminating slag for a sleek finish without the need for galvanizing.

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Details

Detailed Parameters

Material Grades	SS304, SS316, SS316L, SS310, SS310S, SS201, SS430, SS409	Surface Treatment	8K Mirror, 2B Smooth, Sanding, Titanium, BA Board, Brushed
Bearing Bar Size	25x3 to 100x10mm; US Std: 1''x3/16'', 1 1/2''x1/4'' etc.	Bearing Bar Pitch	12.5mm to 80mm; US Std: 19-w-4, 15-w-2 etc.
Cross Bar Pitch	38.1mm to 120mm; 2'' & 4'' available	Grating Styles	Plain/Smooth, Serrated/Teeth, I-Bar, Serrated I-Bar
Plate Thickness	SS304: 0.12mm-65mm; SS316L: 0.5mm-16mm	Max Width/Length	Up to 1500mm width and 6000mm length
Production Method	Machine Pressure Welding & Spot Welding	Standard Compliance	ASTM A36, A1011, A569, Q235, S275JR

Key Advantages

Superior Corrosion Resistance

High chromium content forms a natural passivation film, protecting against acids, bases, and oxidative environments for up to 40 years.

Extended Service Life

Significantly outperforms hot-dip galvanized steel in corrosive settings, reducing replacement frequency and maintenance costs.

High Load Capacity

Engineered with high-voltage pressure welding for maximum joint stability, ensuring safety under heavy industrial loads.

Anti-Slip Safety

Serrated tooth-type surfaces provide enhanced grip and traction, preventing accidents in wet or oily drainage areas.

Modern Aesthetic

Polished surface treatments (8K Mirror/Sanding) provide a clean, professional appearance suitable for high-end architecture.

Efficient Installation

Lightweight design combined with high strength allows for rapid installation and easy cleaning of drainage systems.

Product Gallery

Management Platforms

Custom Fabrication

Tailored dimensions based on your specific length, width, and quantity requirements for a perfect fit.

Quality Control

Rigorous surface polishing and welding inspections to ensure zero slag and maximum joint strength.

Material Sourcing

Direct access to a wide range of stainless steel grades from 201 to 316L to match your budget and environment.

Rapid Prototyping

Fast turnaround from technical parameters to physical samples for engineering validation.

Global Logistics

Expert packaging and shipping for heavy-duty steel products to ensure damage-free delivery worldwide.

Technical Support

Professional guidance on selecting the right bearing bar pitch and material for specific load requirements.

Investment Return Comparison

Feature	Hot-Dip Galvanized Steel	Stainless Steel Grating
Lifespan	5 - 15 Years	30 - 40 Years
Corrosion Resistance	Moderate (Zinc Layer)	Exceptional (Chromium Oxide)
Maintenance Cost	High (Periodic Re-coating)	Very Low (Self-Cleaning)
Safety/Grip	Smooth/Standard	Serrated/Anti-Slip Options
Long-term ROI	Low (Frequent Replacement)	High (Lifetime Durability)

Frequently Asked Questions

Q: Which stainless steel grade is best for chemical plant drainage?

For highly corrosive chemical environments, SS316 or SS316L is recommended due to the addition of molybdenum, which provides superior resistance to chlorides and acids compared to SS304.

Q: What is the difference between pressure welding and spot welding for gratings?

Pressure welding uses high voltage and liquid pressure to fuse bars, resulting in high strength and a seamless look. Spot welding is stronger at contact points but may have a less uniform appearance.

Q: Can the serrated grating be customized to specific dimensions?

Yes, we accept fully customized orders. Please provide your required length, width, and quantity, and our technical team will provide a tailored solution.

Q: How does stainless steel grating prevent rust without coating?

Stainless steel contains chromium (usually over 12%). Upon exposure to oxygen, it forms an invisible, self-healing passivation film that prevents iron from oxidizing.

Q: What are the available surface finishes for architectural projects?

We offer several finishes including 8K mirror for high reflection, brushed/sanded for a modern industrial look, and 2B smooth surfaces for standard engineering use.

Q: Is this grating suitable for heavy vehicle traffic?

Yes, by adjusting the bearing bar size (up to 100x10mm) and decreasing the pitch, we can engineer gratings to support extremely heavy industrial loads.