Instrument-Grade 70/30 CuNi Seamless Capillary Pipe Corrosion-Resistant Precision Tubing

Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Copper Nickel Flange
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 workdays
Payment Terms T/T, Western Union
Supply Ability 10Ton/Month
Product Details
Product Name Instrument-Grade 70/30 CuNi Seamless Capillary Pipe Corrosion-Resistant Precision Tubing Material /370/30 Copper-Nickel Alloy (Cu70/Ni30)
Standard ASTM B122 / GB/T 1527-2011 Process Seamless / Cold Drawn
Connection Type Compression Fitting / Welding / Flared Face Type Plain End / Beveled End
Size Range OD: 0.1mm - 6.0mm; WT: 0.01mm - 2.0mm; Length: Custom (max 30m) Application Semiconductor Equipment, Precision Instruments, Medical Devices, Gas/Air Lines
Surface Finish FinisPickled / Bright Annealed / Polished Key Features ① Instrument-Grade Precision With Tight Tolerances (±0.05mm For OD≤2mm) ② Excellent Corrosion Resistance In Harsh Environments ③ High Cleanliness & Anti-fouling Properties Ideal For Semiconductor Gas Lines
Highlight

Instrument-Grade CuNi capillary pipe

,

70/30 CuNi corrosion-resistant tubing

,

Seamless precision copper nickel tube

Leave a Message
Product Description

Instrument-Grade 70/30 CuNi Seamless Capillary Pipe Corrosion-Resistant Precision Tubing

1. Product Description

The Instrument-Grade 70/30 CuNi Seamless Capillary Pipe is a high-precision seamless tubing manufactured from copper-nickel alloy UNS C71500, consisting of approximately 70% copper and 30% nickel . Manufactured through cold-drawn seamless process without welding, this tubing offers superior strength, uniform wall thickness, and exceptional reliability for high-pressure and high-purity applications . The instrument-grade designation ensures tight dimensional tolerances and superior surface finish quality, making it the preferred choice for critical fluid handling systems in semiconductor manufacturing and precision instrumentation.

2. Key Specifications

 
 
Parameter Specification
Material 70/30 Copper-Nickel Alloy (Cu70/Ni30 / UNS C71500)
Standard ASTM B466 / ASME SB466
Process Seamless, Cold Drawn
Outer Diameter 0.1mm - 6.0mm
Wall Thickness 0.01mm - 2.0mm
Length Customized (Max. 30m)
Surface Finish Pickled, Bright Annealed, or Polished
End Type Plain End / Beveled End

3. Applications

  • Semiconductor manufacturing equipment and gas distribution systems

  • Precision instruments and sensors

  • Medical devices and analytical equipment

  • High-purity fluid and gas handling systems

  • Heat exchangers and condensers

4. Product Advantages

  • Instrument-Grade Precision: Tight dimensional tolerances ensure consistent performance in critical applications

  • Superior Corrosion Resistance: Excellent resistance to corrosion, erosion, and biofouling in harsh environments

  • High Strength & Reliability: Seamless construction eliminates weld seam weaknesses, providing superior pressure resistance

  • High Cleanliness: Surface finish options meet semiconductor industry cleanliness requirements

Instrument-Grade 70/30 CuNi Seamless Capillary Pipe Corrosion-Resistant Precision Tubing 0

Instrument-Grade 70/30 CuNi Seamless Capillary Pipe Corrosion-Resistant Precision Tubing 1

5. Product Functions

  • Precision delivery of high-purity gases, chemicals, and corrosive fluids

  • Efficient heat conduction for heat exchange and cooling systems

  • Reliable corrosion-resistant piping solutions for semiconductor and precision equipment

6. Operating Instructions

  1. Pre-Installation Inspection: Verify that outer diameter, wall thickness, length, and other specifications meet design requirements

  2. Cutting & Deburring: Use specialized tube cutting tools to cut and remove burrs from tube ends, ensuring smooth and flat surfaces

  3. Connection Methods: Can be connected via compression fittings, flared fittings, or welding. Professional technicians are recommended for installation

  4. Pressure Testing: After installation, conduct hydrostatic or pneumatic testing according to design pressure to confirm no leakage

  5. Regular Maintenance: Inspect the piping system periodically and clean surface deposits as needed

7. Precautions

  • Store in a dry, well-ventilated environment, avoiding direct contact with corrosive chemicals

  • Prevent bending deformation or surface scratches during transportation and handling

  • Use matching filler materials and process parameters when welding; refer to applicable welding specifications

  • Do not use beyond the designed temperature and pressure range

  • Lead (Pb) and Sulfur (S) are strictly controlled harmful impurities; this product meets stringent quality standards

8. Shipping Information

  • Lead Time: 7-15 working days for standard specifications; 15-30 working days for custom sizes and special orders (subject to contract terms)

  • Shipping Methods: Sea freight, air freight, and international express services available upon request

  • Shipping Packaging: Packed in wooden crates or pallets to ensure product safety during transit

  • Shipping Notification: Tracking number and estimated delivery date will be provided after shipment

9. Payment Terms

 
 
Payment Method Description
T/T (Telegraphic Transfer) Typically 30% deposit + 70% balance paid before shipment, or upon presentation of Bill of Lading copy
L/C (Letter of Credit) Sight L/C accepted, subject to international trade practices
Other Methods Payment terms are negotiable upon mutual agreement

10. Packaging

  • Individual Protection: Each tube is wrapped with plastic protective film or anti-rust paper

  • Bundling: Tubes are bundled by specification and quantity, with plastic end caps on both ends for port protection

  • Outer Packaging: Export-standard wooden crates or sturdy wooden pallets, secured with steel straps

  • Labeling: Outer packaging is marked with product specifications, material grade, quantity, gross weight, net weight, and batch number

11. After-Sales Service (Returns & Exchanges)

  • Quality Assurance: Products undergo 100% inspection before shipment; material test reports and inspection certificates are provided with each delivery

  • Return & Exchange Policy:

    • For quality-related issues (material discrepancies, dimensional deviations, defects, etc.), returns or exchanges can be applied for within 15 days of receipt

    • Returns or exchanges due to customer selection errors or improper use will be handled on a case-by-case basis

  • Technical Support: After-sales technical consultation is available to assist with installation and usage inquiries

  • Warranty Period: 12 months from the date of delivery; free replacement is provided for product quality issues within this period

 
FQA
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ?
is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.