1. Overview of Welded Steel Grating

Welded steel grating is a robust and durable metal grating type formed by welding bearing bars and crossbars together. It is widely used in industrial, commercial, and public infrastructure applications due to its high strength, load-bearing capacity, and resistance to impact. Welded steel grating provides excellent drainage, ventilation, and slip resistance, making it ideal for walkways, platforms, stair treads, and drainage covers.

2. Technical Specifications

2.1 Types of Welded Steel Grating

Welded steel grating comes in various designs and configurations to meet different application needs:

1. Plain Welded Steel Grating

This type features smooth bearing bars and is commonly used in industrial settings where slip resistance is not a primary concern.

2. Serrated Welded Steel Grating

Serrated welded steel grating has notched bearing bars that provide enhanced slip resistance, making it suitable for wet or oily environments.

3. Heavy-Duty Welded Steel Grating

Designed for high-load applications such as bridges, airport runways, and loading docks, this type features thicker and wider bearing bars for maximum strength.

4. Stainless Steel Welded Grating

Made from stainless steel, this type is highly corrosion-resistant and ideal for harsh environments like chemical plants and marine applications.

2.2 Material Composition

• Carbon Steel: Standard material for welded steel grating, often galvanized for corrosion resistance.

• Stainless Steel: Used for high-corrosion areas, available in grades 304 and 316.

• Bearing Bars: Rectangular or I-shaped, made from high-strength steel.

• Cross Bars: Typically round or twisted rods, providing structural support.

• تشطيب السطح: Hot-dip galvanized, painted, or untreated.

2.3 Surface Treatments

• Hot-Dip Galvanizing: Provides long-term corrosion protection.

• Powder Coating: Enhances appearance and weather resistance.

• Mill Finish: Standard untreated steel finish for cost-effective applications.

3. Standard Sizes and Configurations

3.1 Panel Dimensions

• Common Widths: 600mm, 800mm, 1000mm, or customized sizes.

• Length Options: 1000mm, 1200mm, 1500mm, 2000mm, up to 3000mm.

• Custom Dimensions: Available based on project requirements.

3.2 Bearing Bar Spacing

• Standard Spacings: 19mm, 30mm, 40mm.

• Heavy-Duty Configurations: Spacing of 50mm or more for high-load applications.

3.3 Cross Bar Spacing

• Typical Distances: 38mm, 50mm, or customized to meet load requirements.

3.4 Load-Bearing Capacity

• Load capacities range from 500 kg/m² to 5000 kg/m², depending on the bearing bar thickness and spacing.

4. Key Performance Characteristics

4.1 Strength and Durability

• High structural integrity due to welded connections.

• Withstands heavy loads, impact, and mechanical stress.

4.2 Corrosion Resistance

• Hot-dip galvanized options offer excellent resistance to rust and oxidation.

• Stainless steel versions are ideal for extreme environments.

4.3 Ventilation and Drainage

• Open design allows water, debris, and air to pass through, reducing maintenance requirements.

4.4 Slip Resistance

• Serrated grating improves traction in wet and oily conditions.

• Can be combined with anti-slip coatings for enhanced safety.

4.5 Fire Resistance

• Non-combustible material suitable for high-temperature environments.

5. Applications of Welded Steel Grating

• Industrial Walkways & Platforms: Provides safe walking surfaces in manufacturing plants and refineries.

• Drainage Covers & Trench Grating: Ensures proper water flow in public spaces.

• Bridges & Roadways: Heavy-duty grating supports vehicle loads.

• درج معالجته: Slip-resistant steps for buildings and outdoor spaces.

• Security Fencing & Enclosures: Strong and durable barriers for restricted areas.