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Help Center304 Stainless Steel Longitudinal Seam Welded Perforated Tube, 1.5mm Hole, 2mm Wall, 20mm OD
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998 and a trusted manufacturer of wire mesh and perforated products, introduces our premium 304 Stainless Steel Longitudinal Seam Welded Perforated Tube. With an annual export value of US$5–10 million, we serve global markets including North America, Europe, and Southeast Asia. This tube combines the corrosion resistance of 304 stainless steel with precise 1.5mm perforations, 2mm wall thickness, and 20mm outer diameter, offering a robust solution for filtration, ventilation, and industrial screening. Every tube is longitudinally seam welded for consistent strength, ensuring leak-free performance in demanding environments.
Our manufacturing expertise allows us to deliver tubes with tight tolerances and smooth edges, minimizing blockage and maximizing flow efficiency. Whether you need a standard length or custom dimensions, we provide reliable products backed by decades of experience.
Key Features & Specifications
- Material: 304 Stainless Steel – excellent corrosion resistance, suitable for food, chemical, and marine environments.
- Perforation Pattern: Round holes, 1.5mm diameter, staggered arrangement for optimal open area (typically 30–40% depending on pitch).
- Wall Thickness: 2mm – provides structural integrity while remaining lightweight for easy handling.
- Outer Diameter: 20mm – compact size ideal for insertion into assemblies or as a standalone screen.
- Manufacturing Process: Cold-formed from strip, then longitudinally seam welded using TIG or MIG process. No filler metal required, ensuring a clean, strong joint.
- Surface Finish: Mill finish standard; pickling, passivation, or polishing available upon request for improved hygiene or aesthetics.
- Length Options: Standard 3m, 4m, or 6m; custom lengths accepted with minimum order quantity.
- End Finishing: Plain cut ends; can be beveled, threaded, or with flanges as per your specification.
Technical Parameters
| Parameter | Value |
|---|---|
| Material Grade | 304 (UNS S30400) |
| Hole Diameter (mm) | 1.5 ± 0.05 |
| Wall Thickness (mm) | 2.0 ± 0.1 |
| Outer Diameter (mm) | 20.0 ± 0.2 |
| Open Area (%) | ~35% (standard pitch 3.0mm, staggered) |
| Welding Method | Longitudinal Seam Welded (TIG) |
| Max Operating Temperature (°C) | 870 (oxidation), 650 (continuous service) |
| Pressure Rating (approx.) | Up to 10 bar (dependent on length and support) |
Advantages & Benefits
- Corrosion Resistance: 304 stainless steel withstands moisture, chemicals, and high temperatures, extending service life.
- Consistent Perforation: CNC-punched holes ensure uniformity, preventing clogging and improving filtration accuracy.
- Strong Weld Seam: Longitudinal seam welding provides burst strength equal to the parent metal, ideal for pressure applications.
- Easy Integration: The 20mm OD fits standard pipe fittings, quick connectors, or custom housings.
- Customizable: Length, end treatments, and surface finish can be tailored to your exact requirements.
- Cost-Effective: As a manufacturer, we offer competitive pricing without sacrificing quality – our long-standing supply chain ensures raw material savings.
Frequently Asked Questions (FAQ)
-
Q: What is the typical open area for this tube?
A: With a 1.5mm hole diameter and a staggered pitch of 3.0mm, the open area is approximately 35%. The exact value can be adjusted by changing the pitch pattern – we can provide custom configurations. -
Q: Can this tube be used for food processing?
A: Yes, 304 stainless steel is food-grade and suitable for contact with food products. We recommend a pickled or polished surface finish to meet hygiene standards. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is 100 meters. For custom lengths or special finishes, please contact our sales team for a quote. -
Q: How do you ensure the weld seam does not leak?
A: Each tube undergoes a hydrostatic pressure test or air leak test (upon request). We also perform visual inspection and random burst tests to guarantee seam integrity. -
Q: Are there any certifications for your products?
A: Our factory follows strict quality control procedures. While we do not hold specific certifications unless requested, we can provide test reports and material certificates (MTC) for each batch. -
Q: Can you provide tubes with a different outer diameter or wall thickness?
A: Yes, we offer a wide range of sizes. You can customize OD from 6mm to 100mm and wall thickness from 0.5mm to 5mm. Please inquire with your specific dimensions. -
Q: What is the lead time for a standard order?
A: For standard 6m lengths with mill finish, lead time is 15–20 working days after confirmation. Custom orders may take 25–30 days, depending on complexity.
Why choose Anping County Boli Hardware Wiremesh Products Factory? With over 25 years of manufacturing experience, we have shipped products to more than 20 countries across North America, South America, Europe, and Asia. Our annual export value of US$5–10 million reflects the trust our global clients place in our quality and delivery. Each perforated tube is produced in our Hengshui, Hebei facility, using advanced CNC punching and fully automated welding lines. We offer flexible shipping options from Tianjin, Qingdao, Shanghai, and Foshan ports, ensuring fast and cost-effective logistics.
We understand that every application is unique – whether you need a filter element, a protective sleeve, or a ventilation core. Our engineering team is ready to assist with custom designs, free samples, and technical support. Contact us today to discuss your requirements and experience a reliable partner in perforated metal products.
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