Our Heavy Duty Metal Sheet Bar Grating is engineered for maximum strength and durability, serving as a premier solution for industrial flooring and architectural applications. Manufactured primarily from high-grade carbon steel with optional stainless steel or aluminum alternatives, these gratings are hot-dip galvanized to provide superior oxidation resistance and structural integrity in the most demanding environments.
Designed for versatility, our steel gratings excel in ventilation, lighting, and heat dissipation while ensuring non-slip safety and explosion-proof capabilities. From petrochemical plants and power stations to municipal sewage treatment and shipbuilding, our products meet rigorous international standards (ANSI, BS, AS, JJS) to guarantee long-term reliability and high load-bearing capacity.
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 Standards | ASTM A36, A1011, A569, S275JR, SS304, SS400, UK: 43A | Industry Standards | China YB/T4001, USA ANSI/NAAMM, UK BS4592, Australia AS1657, Japan JJS |
| Material Options | Low Carbon Steel, Stainless Steel (304, 316, 310), Aluminum | Stainless Finishes | Pickling, Electrochemical Polishing, Chrome Plating |
Key Advantages
Maximum Durability
Hot-dip galvanized coating prevents oxidation and corrosion in harsh chemical or marine environments.
Extended Lifespan
High-strength carbon and stainless steel ensure longevity even under heavy vehicular loads.
High Bearing Capacity
Optimized bearing bar configurations provide unmatched strength-to-weight ratios for industrial use.
Enhanced Safety
Serrated options provide exceptional anti-skid properties for worker safety in oily or wet areas.
Optimal Ventilation
The open grid design allows for superior light transmission, airflow, and rapid heat dissipation.
Easy Installation
Standardized sizes and lightweight aluminum options make deployment fast and economical.
Product Gallery
Management Platforms
Quality Control
Rigorous inspection of raw materials to ensure compliance with ASTM and BS standards.
Custom Fabrication
Precision cutting and welding based on specific customer requirements and dimensions.
Surface Treatment
Advanced galvanizing and powder coating lines for maximum corrosion protection.
Logistical Efficiency
Optimized packaging and shipping to ensure safe delivery of heavy-duty gratings.
Material Sourcing
Direct procurement of certified low carbon and stainless steel for cost-efficiency.
Technical Support
Expert guidance on choosing the right bearing bar pitch for specific load requirements.
Investment Return Comparison
| Material Type | Initial Cost | Lifespan Value |
|---|---|---|
| Low Carbon Steel | Economical | High (with Galvanizing) |
| Stainless Steel | Premium | Extreme (Corrosive Env) |
| Aluminum Steel | Moderate | High (Lightweight Use) |
| Plain Steel | Lowest | Low (Requires Painting) |
| Serrated Steel | Moderate | Very High (Safety ROI) |
Frequently Asked Questions
For highly corrosive environments, Stainless Steel (especially 316 or 316L) is recommended due to its inherent resistance to acids and chlorides. Aluminum is also a great lightweight, corrosion-resistant alternative.
Plain bars provide a smooth surface for general use, while serrated (tooth-like) bars provide increased traction and anti-slip safety, making them ideal for areas exposed to oil, grease, or ice.
Hot-dip galvanizing creates a thick, metallurgical bond of zinc over the steel, which acts as a sacrificial barrier to prevent oxidation and rust, significantly extending the product's outdoor lifespan.
Yes, we offer full customization including custom bearing bar sizes, pitch, cross bar types, and overall dimensions to fit your specific architectural or industrial requirements.
Our products are manufactured to meet several global standards including USA ANSI/NAAMM (MBG 531-88), UK BS4592-1987, Australia AS1657-1988, and Japan JJS.
They are widely used in petrochemical plants, power stations, water treatment facilities, port terminals, shipyards, and municipal engineering for flooring, drainage, and ventilation.
