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Help CenterSteel Bar Grating ASTM A36 Carbon Steel, 25mm x 5mm Flat Bar, Hot Dip Galvanized
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For over two decades, Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer of steel grating solutions. Our Steel Bar Grating ASTM A36 Carbon Steel, 25mm x 5mm Flat Bar, Hot Dip Galvanized is engineered to deliver exceptional strength, durability, and corrosion resistance for demanding industrial environments. With annual exports exceeding US$5 Million and a global footprint spanning North America, Europe, Southeast Asia, and beyond, we combine precision manufacturing with rigorous quality control to ensure every panel meets your project specifications.
This steel bar grating features flat bars made from premium ASTM A36 carbon steel, measuring 25mm in height and 5mm in thickness. The hot-dip galvanized finish provides a robust protective layer, making it ideal for outdoor and wet environments such as oil rigs, chemical plants, and wastewater treatment facilities. Whether you need standard panels or customized dimensions, our factory in Hengshui, Hebei, China is equipped to deliver consistent quality with lead times that respect your schedule.
Below we detail the key specifications and advantages of this product, helping you make an informed decision for your next project.
Key Features & Technical Specifications
- Material & Standard: Manufactured from ASTM A36 carbon steel, ensuring reliable mechanical properties and weldability. The steel meets strict chemical composition and tensile strength requirements.
- Flat Bar Dimensions: 25mm (height) x 5mm (thickness) – a common size offering optimal load-bearing capacity for walkways and platforms. Custom sizes (e.g., 20x3mm, 40x5mm) are available upon request.
- Surface Treatment: Hot-dip galvanized (HDG) to ASTM A123/A123M standards. This zinc coating provides long-lasting protection against rust and corrosion, even in high-humidity or chemical-exposed environments.
- Pitch Options: Standard center-to-center spacing for bearing bars is 30mm, 40mm, or 50mm; cross bars are typically at 100mm or 50mm intervals. Custom pitches can be produced to match your load requirements.
- Load Capacity: Designed to support heavy pedestrian traffic, light vehicle loads, and equipment access. Detailed load tables are available upon request for your specific span and configuration.
- Fabrication Options: We can supply panels with serrated surfaces for enhanced slip resistance, or with banding, toe plates, and cutouts for specific applications. All fabrication is performed in-house using CNC equipment.
- Packaging: Panels are bundled with steel strapping and protected with edge guards to prevent damage during transportation. Export packaging is available for sea freight via Tianjin, Qingdao, Shanghai, or Foshan ports.
Product Advantages & Customer Benefits
| Advantage | Customer Benefit |
|---|---|
| High-strength ASTM A36 steel | Ensures long service life with minimal deflection under load; reduces maintenance costs. |
| Hot-dip galvanized finish | Superior corrosion resistance – typical life of 20+ years in most environments, lowering replacement frequency. |
| Open grid design | Allows light, air, and water to pass through, reducing wind load and preventing debris accumulation; also provides slip resistance. |
| Customizable dimensions & configurations | Fits your exact project requirements – no need to compromise on spacing or shape. |
| Factory-direct pricing | Competitive cost advantage without sacrificing quality; we have been a manufacturer since 1998. |
| Reliable export logistics | Multiple port options (Tianjin, Qingdao, Shanghai, Foshan) ensure timely delivery to global markets. |
Typical Applications
- Industrial flooring and mezzanine platforms
- Catwalks, stair treads, and trench covers
- Oil and gas refineries, petrochemical plants
- Water and wastewater treatment facilities
- Mining and mineral processing sites
- Commercial drainage grates and security barriers
Our 25mm x 5mm flat bar grating is a versatile choice for projects requiring a balance of strength and weight. The 5mm thickness provides adequate stiffness while keeping the overall weight manageable for installation. The 25mm bearing bar height is suitable for spans up to 900mm (depending on load), making it a cost-effective solution for many industrial settings.
Quality Assurance & Trust
Anping County Boli Hardware Wiremesh Products Factory has been in operation since 1998, with a dedicated team of engineers and skilled workers. Our manufacturing process includes:
- Incoming material inspection – verifying chemical composition and mechanical properties of ASTM A36 steel.
- Precision press-locking or welding of cross bars to bearing bars, depending on customer preference.
- Hot-dip galvanizing in a certified facility, with coating thickness measured to ensure compliance.
- Final dimensional inspection and surface quality check before packaging.
This product has been supplied to major clients across North America, Europe, Southeast Asia, Africa, and Oceania, with annual export value of US$5-10 Million. Our location in Hengshui, Hebei – a well-known wire mesh and grating production hub – gives us access to raw materials and skilled labor, ensuring consistent quality.
Choose our Steel Bar Grating for your next project – contact us today for a quotation or technical drawing. We offer free samples for evaluation upon request, and our team can provide load calculations and installation guidance to ensure your project runs smoothly.
Frequently Asked Questions
Q1: What is the standard panel size for this grating?
Standard panels are typically 1m x 6m, but we can cut to any required length and width. Custom sizes are welcomed – just provide your dimensions.
Q2: Can you provide serrated (anti-slip) surface on the flat bars?
Yes, we offer serrated flat bars as an option. The serrations are pressed into the bearing bars to improve slip resistance, especially in oily or wet conditions.
Q3: What is the typical lead time for a standard order?
For standard sizes and quantities within 20 tons, lead time is approximately 15-20 working days after deposit. Large orders or custom fabrications may require 25-30 working days.
Q4: How do you ensure the hot-dip galvanizing meets quality standards?
We use third-party certified galvanizing plants that follow ASTM A123. Coating thickness is measured with a magnetic gauge, and we provide a certificate of compliance upon request.
Q5: Can I get a sample before placing a bulk order?
Yes, we offer free samples (typically 200mm x 200mm) for evaluation. You only need to cover the shipping cost. Contact our sales team to arrange.
Q6: What is the load capacity of this 25x5mm grating?
The load capacity depends on the bearing bar spacing, span, and support conditions. Please provide your specific requirements (span length, live load, deflection limit) and we will calculate accordingly. For a typical 1m span with 30mm center spacing, it can support around 4 kN/m² uniformly distributed load.
Q7: Do you offer welded or press-locked grating? Which is better?
Both are available. Welded grating uses a resistance weld at each cross bar intersection, providing high strength for heavy loads. Press-locked grating uses a mechanical locking process, which is faster and offers a smooth surface but slightly lower shear strength. We recommend welded for structural applications, press-locked for light-duty walkways.
Q8: What are your payment terms?
Typically 30% deposit, 70% balance before shipment. For regular customers or letters of credit, terms can be negotiated. We accept T/T, L/C, and others as agreed.
With over 25 years of manufacturing experience, Anping County Boli Hardware Wiremesh Products Factory is your reliable partner for steel grating solutions. Contact us today for a quote, and let us help you build a safer, more durable infrastructure.
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