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Help CenterStainless Steel Spiral Punched Tube With 1-year Warranty, Mill Test Report Included, 304 Grade, 20mm OD, 0.8mm Wall
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As a trusted manufacturer based in Hengshui, Hebei, China, Anping County Boli Hardware Wiremesh Products Factory (established in 1998) proudly presents our premium Stainless Steel Spiral Punched Tube. This 304 grade tube, with a 20mm outer diameter and 0.8mm wall thickness, is designed to meet demanding industrial filtration, ventilation, and fluid handling applications. Each tube comes with a 1-year warranty and a comprehensive Mill Test Report, ensuring full traceability and quality assurance. With over two decades of manufacturing expertise and an annual export value of US$5-10 million, we deliver consistent quality to global markets including North America, Europe, Southeast Asia, and beyond.
Key Features & Technical Specifications
- Premium 304 Stainless Steel – Excellent corrosion resistance, durability, and hygiene, suitable for food-grade, chemical, and marine environments.
- Precision Spiral Punched Design – Uniform hole pattern enhances flow distribution, reduces pressure drop, and provides structural integrity.
- 20mm Outer Diameter & 0.8mm Wall – Balanced strength-to-weight ratio for medium-duty applications.
- 1-Year Warranty – Covers material and workmanship defects, giving you peace of mind.
- Mill Test Report Included – Provides chemical composition and mechanical property data for quality verification.
- Customizable Length – Available in standard or custom lengths to suit your specific project requirements.
- Versatile Applications – Ideal for filter elements, water treatment, oil & gas separation, ventilation ducts, and architectural decorative uses.
| Parameter | Value |
|---|---|
| Material Grade | 304 Stainless Steel (UNS S30400) |
| Outer Diameter (OD) | 20mm ±0.1mm |
| Wall Thickness | 0.8mm ±0.05mm |
| Hole Pattern | Spiral (Continuous or staggered as per design) |
| Hole Diameter | Customizable (e.g., 2mm, 3mm, 5mm) |
| Open Area Ratio | Up to 60% (dependent on hole size and spacing) |
| Surface Finish | Mill finish, optional pickling or passivation |
| Standard Length | 1m, 2m, 3m, or custom |
| Warranty | 1 Year |
| Mill Test Report | Included with each batch |
Why Choose Our Spiral Punched Tube?
- Consistent Hole Quality – Our advanced punching machinery ensures burr-free edges and uniform hole geometry, reducing clogging and improving flow efficiency.
- Enhanced Durability – The spiral configuration adds structural rigidity, allowing the tube to withstand higher pressure and mechanical stress compared to straight perforated tubes.
- Easy Installation – Lightweight yet strong, these tubes can be cut, welded, or fitted with standard connectors, saving time and labor costs.
- Global Logistics Support – Ship from multiple ports (Tianjin, Qingdao, Shanghai, Foshan) with reliable packaging to prevent damage during transit.
- Customization Available – Need a different OD, wall thickness, hole pattern, or length? We can tailor the product to your exact specifications.
Trusted by Industries Worldwide
With over 25 years of manufacturing experience (since 1998), Anping County Boli Hardware Wiremesh Products Factory has supplied high-quality stainless steel products to more than 10 major markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value of US$5-10 million reflects our commitment to quality and customer satisfaction. We have a dedicated quality control team that inspects every batch, and we provide Mill Test Reports as standard to ensure full material traceability. When you choose our products, you choose a partner that values reliability, transparency, and long-term cooperation.
Contact us today to discuss your specific requirements, request a sample, or place an order. Our team is ready to provide technical support and competitive pricing for bulk or custom orders.
Frequently Asked Questions
Q1: What is the minimum order quantity (MOQ) for this spiral punched tube?
A: Our standard MOQ is 100 meters, but we can accept smaller trial orders for sample evaluation. Please contact us for details.
Q2: Can the hole diameter be customized?
A: Yes, we offer a range of hole diameters from 1mm to 10mm, and the spiral pattern can be adjusted to meet your open area requirements.
Q3: Is the tube suitable for food contact applications?
A: 304 stainless steel is widely used in food processing due to its corrosion resistance and non-reactive nature. However, we recommend confirming with local food safety regulations. Our surface finish can be polished or passivated upon request.
Q4: What does the Mill Test Report include?
A: The report provides chemical composition (C, Si, Mn, P, S, Cr, Ni) and mechanical properties (tensile strength, yield strength, elongation). It is issued per batch and can be shared in PDF or hard copy.
Q5: How long does shipping take?
A: Typical production lead time is 15-20 working days for standard orders. Shipping time depends on destination and port; we can provide estimated transit times upon inquiry.
Q6: Do you offer free samples?
A: Yes, we can provide samples for evaluation. The customer is responsible for shipping costs, but we can deduct the sample cost from the first bulk order.
Q7: Can the tube be welded easily?
A: Yes, 304 stainless steel has excellent weldability. The spiral punched tube can be welded using standard TIG or MIG processes without difficulty.
Q8: What packaging do you use for export?
A: Tubes are bundled with plastic caps, wrapped in protective film, and packed in wooden crates or pallets to prevent damage during long-distance shipping. Custom packaging is also available.
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