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Help CenterASTM A269 Stainless Steel Helically Perforated Tube, 1/4" Hole, 0.049" Wall, 12ft Length
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As a trusted manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory is proud to offer high-quality stainless steel perforated tubes that meet the demands of filtration, separation, and industrial applications worldwide. Our ASTM A269 Stainless Steel Helically Perforated Tube with a precise 1/4" hole diameter, 0.049" wall thickness, and 12-foot length is engineered to deliver consistent performance, durability, and corrosion resistance. Whether you need a reliable component for liquid filtration, gas distribution, or structural support, this product is designed to meet rigorous standards while providing excellent value.
The helical perforation pattern creates a uniform and continuous slot arrangement that enhances flow efficiency and reduces clogging compared to traditional straight-hole tubes. Manufactured from premium stainless steel, this tube offers superior strength and longevity in harsh environments, including chemical processing, wastewater treatment, food and beverage production, and oil and gas industries. Each tube is produced under strict quality control to ensure dimensional accuracy and consistent hole geometry.
Key features of this product include:
- ASTM A269 Compliance: Manufactured to meet the ASTM A269 specification for seamless and welded austenitic stainless steel tubing for general service, ensuring reliable mechanical properties and corrosion resistance.
- Helical Perforation Design: The spiral hole pattern provides a larger open area and better fluid distribution, making it ideal for applications requiring uniform flow or fine particle retention.
- Precise Hole Size: Each hole is precisely 1/4 inch (6.35 mm) in diameter, with tight tolerances to ensure consistent filtration performance.
- 0.049" Wall Thickness: Offers a balance between strength and weight, suitable for moderate pressure applications and easy handling during installation.
- 12-Foot Length: Standard length reduces the need for multiple joints, simplifying installation and minimizing potential leak points.
- Stainless Steel Material: Available in 304 or 316L stainless steel (customizable), providing excellent resistance to corrosion, oxidation, and high temperatures.
- Customizable Options: Outer diameter, end finishing (plain, threaded, or beveled), and hole pattern can be tailored to your specific requirements.
Below is a summary of the standard technical specifications for this tube:
| Specification | Value |
| Material Grade | 304 / 304L / 316 / 316L stainless steel |
| Standard | ASTM A269 |
| Hole Diameter | 1/4 inch (6.35 mm) |
| Wall Thickness | 0.049 inch (1.24 mm) |
| Length | 12 feet (3.66 m) |
| Perforation Pattern | Helical (spiral) with staggered holes |
| Open Area | Approximately 30% – 40% (depending on OD) |
| End Finish | Plain cut (threaded or beveled optional) |
The helical design offers distinct advantages over conventional perforated tubes. The spiral arrangement of holes creates a more uniform flow path, reducing turbulence and pressure drop. This is especially beneficial in applications such as water intake screens, catalyst support, sand control filters, and pneumatic conveying systems. Additionally, the staggered hole pattern improves the structural integrity of the tube, allowing it to withstand higher radial loads without deformation.
For customers requiring custom dimensions, we offer flexible manufacturing capabilities. Whether you need a different outer diameter, a specific hole pattern, or a specialized end connection, our engineering team can work with you to develop a solution that meets your exact needs. The tube can also be supplied in longer or shorter lengths upon request, with quick turnaround times for new orders.
Our factory in Hengshui, Hebei, China, has been producing wire mesh and perforated metal products for over 25 years. With an annual export value of US$5 million to US$10 million, we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics to global destinations.
We understand that product consistency and reliability are critical for your operations. That is why each tube undergoes rigorous inspection during production, including dimensional checks, hole size verification, and material certification. Our quality control team follows ASTM A269 guidelines to ensure that every tube meets the required tensile strength, yield strength, and elongation properties.
By choosing our ASTM A269 Helically Perforated Tube, you benefit from:
- Long service life – stainless steel resists rust, chemicals, and high temperatures.
- Low maintenance – the helical pattern reduces clogging, minimizing cleaning frequency.
- Easy installation – standard 12-foot lengths and customizable end finishes simplify integration.
- Competitive pricing – direct manufacturer pricing without middlemen.
- Flexible order quantities – from small prototypes to large production runs.
We invite you to contact us for a quotation or technical consultation. Our team is ready to assist with product selection, customization, and logistics. Let us help you find the right perforated tube solution for your application.
Frequently Asked Questions
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What is the difference between helical and straight perforation?
Helical perforation arranges holes in a spiral pattern, which provides a more uniform flow distribution and reduces the risk of clogging compared to straight rows. It also improves the structural strength of the tube. -
Can this tube be used for high-pressure applications?
While the tube is designed for general service per ASTM A269, the maximum working pressure depends on the outer diameter and end connections. Please consult our engineering team for specific pressure ratings. -
What stainless steel grades are available?
Standard options include 304 and 316L stainless steel. 304 offers good corrosion resistance for most environments, while 316L provides enhanced resistance to chlorides and acids. Other grades are available upon request. -
How is the tube packaged for export?
Each tube is individually wrapped with protective material and bundled in wooden crates or steel pallets to prevent damage during transportation. We also offer custom packaging for fragile or high-value orders. -
Is the hole size customizable?
Yes, the hole diameter can be customized to meet your specific filtration requirements. Minimum and maximum hole sizes depend on the tube wall thickness and material. Please provide your target hole size when inquiring. -
What is the typical lead time for an order?
Lead time varies based on quantity and customization. For standard 12-foot tubes with 1/4" holes, we can ship within 15–25 working days. Custom orders may require 30–45 working days. -
Do you provide a material test certificate?
Yes, we can provide a mill test certificate (MTC) for each batch, confirming the chemical composition and mechanical properties per ASTM A269. Additional third-party inspection reports are available upon request.
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