Small Diameter & Capillary Tubes and Thin Wall tube / Pipe

Overview

Our Small Diameter & Capillary Tubes are precision-engineered for applications requiring tight tolerances, high surface finish, and reliable performance in confined spaces. Manufactured from premium materials such as stainless steel, carbon steel, copper, and nickel alloys, these tubes are ideal for industries including medical devices, instrumentation, automotive, aerospace, and industrial systems. Available in seamless or welded construction, they meet stringent international standards for quality and consistency.

Key Features

• Ultra-Precise Dimensions: Outer diameters (OD) as small as 0.5mm (0.02″) up to 12mm (0.47″), with tight wall thickness control.
• High Surface Finish: Smooth internal and external surfaces (Ra ≤ 0.4μm) to minimize friction and contamination.
• Material Versatility: Available in 304/304L, 316/316L stainless steel, carbon steel (A106, ST37), copper (C1100, C1220), and nickel alloys (C276, 825).
• Seamless & Welded Options:
  • Seamless: Higher pressure resistance, ideal for critical applications.
  • Welded: Cost-effective for general-purpose use.
• Corrosion Resistance: Stainless steel and alloy grades withstand harsh chemicals, high temperatures, and saline environments.
• Customizable: Tailored lengths, end finishes (beveled, deburred, or plain), and packaging to meet project needs.

Production Standards

Compliant with global quality benchmarks:

• ASTM: A213, A269, A556, B365
• DIN: EN 10305-1, DIN 1785, DIN 2391
• ISO: ISO 9328, ISO 1127
• GB: GB/T 3089, GB/T 3090,GB/T 3639, GB/T 14976
• JIS: G3463 (Japanese Industrial Standard)

Specifications

• Outer Diameter (OD): 0.5mm – 12mm (0.02″ – 0.47″)
• Wall Thickness: 0.05mm – 1.5mm (0.002″ – 0.06″)
• Length: 100mm – 6,000mm (custom cut available)
• Tolerances:
  • OD: ±0.02mm (±0.0008″)
  • Wall Thickness: ±10% or ±0.01mm (whichever is greater)
• End Types: Plain ends, deburred, or beveled for welding.

Applications

• Medical & Pharmaceutical: Catheters, hypodermic needles, surgical instruments, and fluid transfer systems.
• Instrumentation: Pressure gauges, thermocouples, and sensor tubing.
• Automotive: Fuel lines, brake systems, and hydraulic tubing.
• Aerospace: Hydraulic and pneumatic control systems.
• Industrial: Chromatography, gas sampling, and precision fluid handling.
• Electronics: Semiconductor manufacturing and micro-fluidic devices.

Quality Assurance

• Certifications: ISO 9001, CE, FDA (where applicable), and third-party inspection reports (SGS, TÜV).
• Testing:
  • Dimensional inspection (laser micrometer)
  • Hydrostatic pressure testing
  • Eddy current/ultrasonic flaw detection
  • Surface roughness analysis
• Traceability: Full batch traceability with material test reports (MTRs).

Packaging & Delivery

• Packing:
  • Coiled or straight lengths in plastic sleeves.
  • Bundled with protective caps and labeled for identification.
  • Custom wooden crates for fragile or high-value orders.
• Shipping: Flexible logistics via air, sea, or courier (DHL, FedEx) with FOB/CIF/EXW terms.

Why Choose Our Small Diameter & Capillary Tubes?

• Precision & Consistency: Tight tolerances ensure compatibility with fittings and assemblies.
• Material Integrity: High-purity grades minimize contamination risks.
• Global Compliance: Meets ASTM, DIN, ISO, and GB standards for worldwide project acceptance.
• Fast Turnaround: Short lead times for prototype and production quantities.
• Expert Support: Technical guidance on material selection and application suitability.

Contact Us

For inquiries, technical specifications, or quotes, please reach out to our sales team. We specialize in delivering high-precision capillary tubes tailored to your exact requirements.