Custom Size ASTM Standard A572 Hot Dip Galvanized Steel Grating Heavy Duty Industrial Platform Bar Grating Construction Project
| Item | Specification |
| Product Name | ASTM A572 Galvanized Steel Grating |
| Material | ASTM A572 Carbon Structural Steel |
| Standard | ASTM A572 / American Standard |
| Dimensions | Standard Width: 600–1500 mm, Standard Bar Thickness: 25–50 mm, Grating Spacing: 30–100 mm |
| Customization | Custom Size, Shape & Spacing Available |
| Tolerance | Length: ±2 mmWidth: ±2 mmThickness: ±1 mm |
| Quality Inspection | Chemical composition test (Spectrometer),Mechanical property test (Tensile, Hardness), Flatness inspection, Weld strength test, ASTM A572 material certification |
| Surface Treatment | Hot-dip galvanization (HDG),Electro-galvanization Powder coating / Spray painting, Plain black / Raw steel finish |
| Applications | Heavy-duty industrial walkways & platforms, Steel stair treads, Drainage trench grating covers, Factory & warehouse access platforms, Marine ship decks & outdoor industrial facilities |
| Grating Type | Bearing Bar Pitch / Spacing | Bar Width | Bar Thickness | Cross Bar Pitch | Mesh / Opening Size | Load Capacity |
| Light Duty | 19 mm – 25 mm (3/4"–1") | 19 mm | 3–6 mm | 38–100 mm | 30 × 30 mm | Up to 250 kg/m² |
| Medium Duty | 25 mm – 38 mm (1"–1 1/2") | 19 mm | 3–6 mm | 38–100 mm | 40 × 40 mm | Up to 500 kg/m² |
| Heavy Duty | 38 mm – 50 mm (1 1/2"–2") | 19 mm | 3–6 mm | 38–100 mm | 60 × 60 mm | Up to 1000 kg/m² |
| Extra Heavy Duty | 50 mm – 76 mm (2"–3") | 19 mm | 3–6 mm | 38–100 mm | 76 × 76 mm | >1000 kg/m² |
| Category | Key Types | Specs (mm) | Use & Benefits |
| Bearing Bar | Standard Duty | 25×3, 30×3, 32×5 | Walkways, stairs, maintenance platforms |
| Heavy Duty | 40×5, 50×5, 60×10 | Parking decks, cargo terminals, long spans | |
| Mesh Size | Series 1 (30mm pitch) | 30 × 50 / 100 | Most common; meets international codes |
| Series 2 (40mm pitch) | 40 × 50 / 100 | Budget-friendly; light loads / fencing | |
| Series 3 (60mm pitch) | 60 × 50 / 100 | Mining/wash plants; less debris buildup | |
| Material Grade (ASTM A572) | Grade 50 | 20°C impact tested | Main choice; high strength, good weldability |
| Grade 42/55/60/65 | Custom mechanical reqs | Tailored grades for specific project needs | |
| Surface Treatment | HDG | Zinc ≥ 610g/m² | 20+ years corrosion resistance; outdoor/marine use |
| Black / Painted | No zinc coating | Temporary projects / low budget / dry indoor | |
| Surface Profile | Plain / Serrated | Plain / Serrated | Serrated = anti-slip for oily/icy conditions |
| Category | Key Parameters | Description |
| 1. Dimensions | Span (L) × Width (W) | Critical: Always specify the direction of the bearing bars (Span). |
| 2. Structure | Bearing Bar Size | Height × Thickness (e.g., 32×5mm, 40×5mm). |
| Mesh Pitch | Center-to-center distance of Bearing Bars × Cross Bars. | |
| 3. Material | Steel Grade | ASTM A572 Grade 50 (Standard), Grade 42/55/60/65 (High Strength). |
| Surface Finish | Hot-Dip Galvanized (HDG), Painted, or Mill Finish. | |
| 4. Configuration | Surface Profile | Plain (Smooth) or Serrated (Anti-slip). |
| Special Cuts | Circular cuts, notches, or cut-outs for pipe penetrations. | |
| 5. Edging | Banding & Safety | End-banding, Toe Boards (Kick plates), or Nosing for stairs. |
| 6. Accessories | Fixing Clips | Saddle clips, G-clips, or Grating fasteners. |
1. Industrial Platform
Perfect for factory and warehouse platforms that bear forklift and heavy equipment loads. The open-grid design keeps the surface stable and anti-slip, letting debris and liquids fall through easily. This keeps work areas clean, safe, and low-maintenance for daily operations.
2. Municipal Engineering
Commonly used in urban drainage systems, road curbs, and public infrastructure projects. The heavy-duty structure supports regular foot and light vehicle traffic, while the open grid quickly clears rainwater and waste. It’s a durable, long-lasting choice for public works.
3. Port & Wharf
Built to withstand harsh marine conditions, heavy cargo handling, and frequent foot traffic at ports and docks. The hot-dip galvanized finish resists corrosion from saltwater, while the robust grating provides a stable walking surface even in wet, slippery environments.
4. Parking Lot
Ideal for parking area drainage grates and floor covers. The open grid efficiently drains rainwater and spills, preventing pooling and reducing slip risks for vehicles and pedestrians. Its strong structure easily supports vehicle weight and regular use.
5. Stair Treads
Designed for industrial and commercial stairways, these treads feature optional serrated or anti-slip surfaces for extra safety. The grating design reduces the risk of falls in wet or dusty conditions, making them a reliable choice for high-traffic staircases.
6. Grating Fence
Used as industrial safety fences, perimeter barriers, and security enclosures. The open-grid structure offers visibility and airflow while providing a strong, durable barrier. It’s a low-maintenance, corrosion-resistant option for factories, yards, and facilities.
1. Superior Corrosion Resistance
Our steel grating goes through hot-dip galvanizing treatment, forming a thick protective zinc layer that stands up to rain, humidity, and chemical splashes. This gives it long-lasting corrosion resistance even in outdoor, marine, or industrial environments, cutting down on rust-related maintenance.
2. High Load-Bearing Capacity
Made from heavy-duty ASTM A36 / A572 carbon steel, the grating is built with a strong welded structure to handle heavy static and dynamic loads. It easily supports vehicle traffic, heavy equipment, and high foot traffic without bending or deforming, making it reliable for industrial and commercial use.
3. Easy Installation & Low Maintenance
Thanks to its modular design, the grating can be directly spliced and installed on-site without welding. This saves you time and labor during construction. The open grid structure also lets dirt, liquids, and debris pass through, so cleaning and daily upkeep are simple and hassle-free.
4. Eco-Friendly & Fully Recyclable
The grating is made of 100% steel material, which is fully recyclable at the end of its service life. It produces minimal waste during production and use, fitting green building and sustainable project requirements.
Packaging
Stacked neatly and wrapped with plastic film to prevent scratches and moisture.
Secured to fumigated wooden pallets or steel pallets with steel straps and corner protectors for stability.
Designed for full container load (FCL) shipping to maximize space efficiency. Custom packaging available.
Delivery
15–30 days after receiving deposit, based on order quantity.
Primarily shipped by sea in 20GP / 40GP / 40HQ containers. LCL consolidation service available for small orders.
Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.
We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling.
1. What is ASTM A572 steel grating?
High-strength low-alloy steel grating, ideal for heavy-duty industrial applications.
2. Most common grade?
Grade 50 is standard, balancing strength, weldability and cost.
3. How does it compare to A36?
Higher strength, better for heavy loads/long spans; slightly higher cost than A36.
4. Can it be hot-dip galvanized?
Yes, achieves ≥610g/m² zinc coating for 20+ years of corrosion resistance.
5. Available surface profiles?
Plain (smooth) or serrated (anti-slip for oily/wet/icy conditions).
6. Custom fabrication available?
Yes, including custom sizes, special cuts, stair nosing, toe boards, and end banding.
7. Surface finish options?
Hot-dip galvanized, painted, or mill finish.
8. Installation accessories?
Saddle clips, G-clips, and grating fasteners.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service











