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Help CenterCold Drawn Seamless Stainless Steel Spiral Punched Tube 6mm ID 1mm Wall Tolerance ±0.1mm
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As a leading manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory specializes in precision cold drawn seamless stainless steel spiral punched tubes. Our 6mm ID x 1mm wall tube with ±0.1mm tolerance is engineered for demanding applications where dimensional accuracy, structural integrity, and fluid/gas flow control are critical. With over two decades of experience and an annual export value exceeding US$5 million, we deliver consistent quality that meets global standards.
Product Overview
The cold drawn seamless spiral punched tube is produced by cold drawing a seamless stainless steel tube followed by a spiral punching process. This combination ensures a smooth inner bore, precise wall thickness, and uniform spiral perforations along the tube length. The result is a high-strength, corrosion-resistant component ideal for medical, industrial, and automotive applications.
Key Features & Benefits
- Seamless Construction: No welded seams eliminate weak points, ensuring high burst pressure and leak-proof performance.
- Cold Drawn Precision: Achieves tight tolerances of ±0.1mm on inner diameter and wall thickness, perfect for mating with standard fittings.
- Spiral Punched Design: Uniform spiral pattern provides consistent flow distribution, filtration, or gas dispersion along the tube length.
- Corrosion Resistance: Made from premium stainless steel grades (304 or 316L), resistant to harsh chemicals, saltwater, and high temperatures.
- Customizable Options: Length, hole pattern, end finish, and surface treatment can be tailored to your specific requirements.
- Excellent Mechanical Properties: Cold drawing enhances tensile strength and hardness while maintaining ductility.
Technical Specifications
| Parameter | Value |
|---|---|
| Inner Diameter (ID) | 6 mm |
| Wall Thickness | 1 mm |
| Tolerance (ID & Wall) | ±0.1 mm |
| Material Grade | SS304 / SS316L (optional) |
| Perforation Type | Spiral pattern, customizable pitch and diameter |
| Standard Length | 1000 mm – 6000 mm (custom) |
| Surface Finish | Bright drawn, matte, or passivated |
| End Finish | Plain, chamfered, or threaded (custom) |
| Packing | Wooden crates, plastic caps, or as per requirement |
Detailed Description
The cold drawn seamless spiral punched tube is manufactured using a multi-step process that starts with a high-quality stainless steel billet. The billet is extruded into a seamless tube, then cold drawn through a die to achieve the precise 6mm inner diameter and 1mm wall thickness. The cold drawing process improves the material's grain structure, resulting in enhanced mechanical properties such as higher tensile strength and better fatigue resistance. After drawing, the tube undergoes spiral punching using a specialized CNC machine that creates a continuous helical pattern of holes. The pitch, hole diameter, and pattern density can be adjusted to meet specific flow or filtration requirements. The spiral arrangement ensures uniform distribution of media, whether it is air, liquid, or gas, making these tubes ideal for use in medical catheters, heat exchangers, sprinkler systems, and industrial filters.
Quality Control
Each tube is inspected for dimensional accuracy using laser micrometers and go/no-go gauges. The ±0.1mm tolerance is strictly maintained. Surface finish is checked for defects, and the perforation pattern is verified for uniformity. We offer 100% inspection upon request.
Why Choose Anping Boli?
- Experience Since 1998: Over 25 years of manufacturing expertise in wire mesh and perforated products.
- Global Reach: Exports to over 30 countries including North America, Europe, Southeast Asia, and Oceania.
- Financial Strength: Annual export value between US$5 million and US$10 million, ensuring stable supply and competitive pricing.
- Flexible Shipping: Ports: Tianjin, Qingdao, Shanghai, Foshan – convenient for international logistics.
- Customization: We work closely with clients to develop bespoke solutions for unique applications.
Frequently Asked Questions (FAQ)
-
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is 1000 pcs, but we can accommodate smaller trial orders for new customers. Please contact us for details. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we offer samples. The sample cost and shipping will be discussed. For established partners, we may provide free samples. -
Q: What is the lead time for production?
A: Typically 15–25 working days after order confirmation, depending on quantity and customization. Urgent orders may be expedited. -
Q: Are these tubes suitable for high-pressure applications?
A: The seamless construction and cold drawn process provide excellent pressure resistance. For specific pressure ratings, please consult our engineering team with your application parameters. -
Q: Can you customize the spiral hole pattern?
A: Absolutely. We can adjust hole diameter, pitch, and pattern orientation. Provide your technical drawing or requirements for a quote. -
Q: What stainless steel grades are available?
A: Standard is SS304. We also offer SS316L for enhanced corrosion resistance in marine or chemical environments. Other grades upon request. -
Q: Do you provide third-party inspection certificates?
A: Yes, we can arrange inspection by SGS, BV, or other agencies at the buyer's cost. Our own quality report is provided with every shipment. -
Q: How do you pack the tubes to prevent damage during transit?
A: Each tube is individually wrapped with protective film, bundled with straps, and packed in sturdy wooden crates. Custom packing options are available.
Trust & Reliability
Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a trusted supplier to global markets including North America, South America, Europe, and Asia. Our annual export value of US$5–10 million reflects the confidence our customers place in our quality and delivery. We ship from major Chinese ports such as Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics. We invite you to contact us for a quote, sample, or technical consultation. Let us help you find the perfect tubing solution for your application.
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