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Custom Size ASTM Standard A572 Hot Dip Galvanized Steel Grating Heavy Duty Industrial Platform Bar Grating Construction Project

Short Description:

Heavy duty ASTM A572 hot dip galvanized steel bar grating, custom sized for industrial platforms and construction projects with superior strength and corrosion resistance.


  • Brand: Royal Steel Group
  • Material: A572
  • Standard: ASTM Standard
  • Surface Treatment: Hot Dip Galvanized
  • Technique: Welded Steel Grating
  • Load Capacity: High Structural Strength
  • Corrosion Resistance: Long Lasting Anti-Corrosion
  • Application: Platform, Trench Cover, Construction
  • Customization: Custom Size & Specification
  • Service: OEM & Custom Processing
  • Product Detail

    Product Tags

    galvanized steel grating royal steel group (11)

    Product Introduction

    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
    steel-grating-sizes-royal-steel-group

    Steel Grating Specifications and Parameters Table

    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

    Steel Grating Customized Content

    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.
    galvanized steel grating royal steel group (4)

    Surface Finish

    initial surface

    Initial Surface

    galvanized surface

    Galvanized Surface

    painted surface

    Painted Surface

    Main Application

    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.

    galvanized steel grating royal steel group (18)

    Royal Steel Group Advantage(Why Choose Royal Group?)

    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.

    galvanized steel grating royal steel group (16)

    Packing And Delivery

    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. 

    galvanized steel grating royal steel group (7)

    FAQ

    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.

    Hours

    Monday-Sunday: 24-hour Service


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