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Help Center304 Stainless Steel Helically Perforated Tube, 180 Grit Surface Finish, 0.8mm Thickness, Custom Lengths
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Founded in 1998, Anping County Boli Hardware Wiremesh Products Factory is a trusted manufacturer specializing in high-quality stainless steel perforated tubes. Our 304 Stainless Steel Helically Perforated Tube with a 180 Grit Surface Finish and 0.8mm thickness is engineered to deliver superior performance in demanding environments. Combining robust material properties with precise helical perforation, this tube offers excellent fluid distribution, structural integrity, and aesthetic appeal. Available in custom lengths, it is the ideal solution for filtration, ventilation, and decorative applications.
Our helically perforated tubes are produced using advanced CNC machinery, ensuring consistent hole patterns and smooth edges. The 180 grit surface finish not only enhances corrosion resistance but also provides a satin-like appearance that resists fingerprints and staining. With over 26 years of export experience to markets worldwide, including North America, Europe, and Asia, we guarantee reliable quality and timely delivery.
Key Features & Benefits
- Material: Premium 304 stainless steel (UNS S30400) – excellent corrosion resistance, weldability, and durability.
- Helical Perforation: Uniform spiral pattern for optimal flow distribution, reduced pressure drop, and enhanced structural strength.
- Surface Finish: 180 grit brushed finish – satin appearance, easy to clean, and resistant to oxidation.
- Thickness: 0.8mm (22 gauge) – ideal balance of strength and flexibility for various applications.
- Custom Lengths: Available from 100mm to 6000mm, cut to your exact specifications.
- Hole Diameter Options: Standard sizes from 1.5mm to 6mm, with custom sizes upon request.
- Pitch & Open Area: Adjustable pitch for controlled open area (typically 15–40%) to meet performance requirements.
- End Treatment: Options include plain ends, threaded ends, flanged ends, or welded caps.
Technical Specifications
| Parameter | Value |
|---|---|
| Material Grade | 304 Stainless Steel (ASTM A240) |
| Wall Thickness | 0.8mm ±0.05mm |
| Surface Finish | 180 Grit Brushed |
| Perforation Pattern | Helical (Spiral) – continuous or staggered |
| Hole Diameter | 1.5mm – 6mm (customizable) |
| Open Area Ratio | 15% – 40% (adjustable) |
| Outer Diameter Range | 10mm – 200mm (custom diameters available) |
| Length Tolerance | ±2mm for lengths up to 3m; ±5mm for longer |
| Working Temperature | -196°C to 800°C (in oxidizing atmosphere) |
Typical Applications
- Industrial filtration (liquid, gas, air)
- Acoustic ventilation and sound diffusion
- Decorative architectural elements (handrails, screens, lighting)
- Chemical processing and petrochemical equipment
- Food and beverage processing (hygienic design)
- Automotive exhaust and muffler components
Why Choose Anping Boli?
With an annual export value of US$5–10 million, we have shipped thousands of perforated tubes to over 20 countries across North America, Europe, Asia, South America, Africa, and Oceania. Our factory in Hengshui, Hebei operates with strict quality control, ensuring each tube meets dimensional accuracy and surface finish standards. We offer flexible customization, fast lead times, and competitive pricing. Our experienced team is ready to assist with technical drawings and sample production.
Frequently Asked Questions
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Q: What is the minimum order quantity (MOQ) for custom lengths?
A: Our MOQ for custom lengths is 100 pieces, but we can accommodate smaller quantities for sample orders. Please contact us for details. -
Q: Can you provide tubes with different hole sizes or patterns?
A: Yes, we offer a wide range of hole diameters (1.5mm–6mm) and can adjust the helical pitch to achieve your desired open area. Custom patterns are also available upon request. -
Q: How do you ensure the 180 grit surface finish is consistent?
A: We use automated brushing machines with controlled abrasives and pass speed. Each tube is inspected visually and with a profilometer to confirm roughness (Ra 0.5–0.8µm). -
Q: What packaging do you use for export?
A: Tubes are packed in sturdy wooden crates with foam inserts to prevent scratches and bending. For large orders, we use steel strapping and waterproof wrapping. -
Q: Are these tubes suitable for food contact applications?
A: Yes, 304 stainless steel is food-grade and our 180 grit finish is easy to clean and hygienic. We can provide surface treatment to meet FDA or EU standards if required. -
Q: What is the typical lead time for a custom order?
A: For standard diameters and lengths, lead time is 15–20 working days. For unique specifications, allow 25–30 days. Rush orders are possible with expedited fees. -
Q: Can you supply tubes with threaded ends or flanges?
A: Absolutely. We can weld or machine threaded ends, flanges, or caps according to your drawings. Please specify when ordering. -
Q: Do you offer free samples?
A: Yes, we provide free samples of stock sizes (up to 300mm length). Custom samples are charged at cost, refundable with bulk orders.
Contact us today to discuss your project requirements. With our extensive experience, global shipping network, and commitment to quality, we are your reliable partner for customized helically perforated tubes. Request a quote or send your drawing for a quick evaluation.
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